It’s probably the most common car service, but it’s important. At Stonum Automotive in Longmont, we can make sure your oil change get’s done right and on time. We can do your oil change while you wait.

Though an oil change may seem like an inconvenience, it’s an important part of your car’s maintenance and keeps your cars’ engine running smoothly. Regular oil changes are one of the keys to a long lasting engine and vehicle.

Find money saving Stonum Automotive auto repair coupons here

Longmont, CO Oil Change

If you’re like most of us, you know that a regular oil change is one of the easiest and most useful maintenance practices you can perform for your vehicle. And if you’re like many of us, you don’t follow up and take the time to do it. And that is a mistake. Our lives are so busy and an oil change? Who’s got the time? It just continues to fall down our list of priorities, but our vehicles are one of the larger expenses we incur in life and it deserves to be given a higher priority in our list of “things to do”. Unfortunately it often takes a breakdown for us to realize just how important our vehicles are to daily life.

The parts of an engine are in constant contact with each other. And they are moving back and forth over each other at high speeds and high friction. Friction is what causes wear and it is oil’s job to reduce wear, cool your engine and to prevent gunk from building up within your engine. Less wear on moving parts means they operate more efficiently, meaning maximum fuel economy, a reduction in harmful emissions and a longer life for your engine. . Less wear also keeps gaskets and seals supple resulting in fewer leaks.

So is there an correct mileage interval for oil changes? The truth is, there is no one-size-fits-all answer. John Stonum says that car owners should follow the manufacturer’s recommended interval. Many modern cars have a dashboard display that monitors mileage. rpms and oil usage and tells you exactly how much life you have in your oil. Trust it. But with the innovations of synthetic oil and better-built vehicles, this interval is usually greater than 3,000 miles. Some higher end rides hold up to 10 quarts of premium synthetic oil and so their intervals can exceed 7000 miles.

There has a lot of talk about synthetic versus conventional oil. While synthetic oil “comes” from conventional oil, it is simply better than conventional oil. It has been broken down to its basic molecules which not only removes most impurities, it allows the insertion of engineered additives to improve the life and viscosity of the oil, or to help keep your engine clean. Synthetic oils do not break down as quickly as petroleum-based oil which gives the user a longer interval between oil changes. This longer interval can also help recoup some of the cost of the higher priced synthetics. At Stonum Automotive, we use premium blended/synthetic oil for our basic oil changes. We fill your window wash and top off other fluids that may be low. We include a free tire rotation as well as a 29- point vehicle inspection, performed by an ASE certified professional.

Maybe you have taken your car to one of those quickie lube shops in the past, looking for a short turnaround and sometimes, in a pinch, they are alright for a basic oil change but their range of expertise is extremely limited and their dedication to customer service leaves much to be desired. Or maybe you prefer to do it yourself. Sure, you can save a few bucks if you don’t mind crawling under your vehicle and hauling the waste oil away to an auto parts store, using up an hour of your time but there are many advantages to having a dedicated professional take care of this.

Stonum Automotive offers expert service and years of experience to provide the insights you need to keep an eye out for trouble. An oil change performed by one of our trained technicians can catch other maintenance or repair items before they become a problem, which is why it is so important to develop a good relationship with your mechanic.

Our basic oil change takes between 45 minutes and an hour the extra time is worth it. You will get far more out of our service. We will get to know your vehicle and keep an accurate record of maintenance for you and your vehicle. All oil changes at Stonum Automotive are performed by skilled ASE professionals, who are eager to deliver great customer service and high quality vehicle care. We want to make sure you return to Stonum Automotive, not just for oil changes, but for all your vehicle service and maintenance needs.

An oil change is one of the best things you can do for your trusted ride. It will save you money in the long term, both in potential repairs and in fuel costs. And really, what would you prefer; the ease of planning to be without your vehicle for a short time while we give your car a little attention or the hassle of breaking down on the side of a dark and wet road? Call us 303-485-9303  and we’ll take care of you.

Brake Repair

Brake Repair Longmont

Brake problems can creep on you; and with a busy life, it can be hard to find the time to look for a reliable brake repair shop, never mind bringing your car in for service. You know that putting off brake repairscan make the problem worse, but here’s the solution: Bring your car in today to Stonum Automotive. Our Longmont location is the shop for all your brake repair needs. We will check your brakes to see if they need to be replaced, and will ensure all the parts are working properly. Squeaking brakes or a mushy brake pedal usually mean it’s time to get your brakes replaced.

When You Should Bring Your Car in for Brake Repair

Sometimes drivers aren’t sure when they should bring their car in to Stonum Automotive for brake repair. Brakes can be tricky, so we put together this handy checklist to help you know when you may wish to have our professionals examine your brakes and diagnose the issue:

• You hear a squeaking noise when applying the brakes
• Shaking, grinding, or other noises when stopping
• Having to push the brake pedal harder
• Feeling no pressure in the brake – the brake pedal goes to the floor with no response (this is an extreme situation and should be reviewed by our techs immediately)
• Strange vibrations when stopping
• It takes you longer to stop than usual

Sometimes your car will pull to the left or right when braking; this is yet another sign of problems.

Thankfully, our trained technicians know all the signs of brake problems and they have the expertise to repair them. Don’t wait until your brake issues become major – visit Stonum Automotive today and get them taken care of by the best brake specialists in the Front Range.

Brake Pads Replacement

We will check all your rotors and drums to ensure your brakes will last. We can install that pads your car needs and can even install ceramic pads to ensure that your pads last longer and you won’t have to replace them as often.

Longmont, CO Car Maintenance Services 

Stonum Automotive in Longmont, CO 80501 is a full-service preventative maintenance and auto repair center, providing comprehensive car care services for your domestic or import vehicle to keep it running at full power. For questions, contact us at 303-485-9303 or send us an email, and our experts will help determine what needs to be done.

Our basic auto maintenance services include:

Distributorless Ignition Repair

The distributorless ignition enables a longer maintenance interval. We have witnessed cars that don’t need their first tune-up until 100,000 miles. Although the distrubutorless ignition requires less maintenance, they do still require it. For all your distributorless engine servicing needs, call or visit Stonum Automotive today.

Fuel Injection Maintenance 

Fuel injection is a system for admitting fuel into an engine. Since 1990, fuel injectors have completely replaced carburetors as the primary means of getting gasoline into the engine. A fuel injection atomizes the fuel by forcibly pumping it through a small nozzle (under high pressure). Failure of the fuel injection system means poor performance and ultimately destroys the vehicle. Make sure your vehicle’s fuel injection system is maintained properly. For all your fuel injection maintenance and replacement needs, call 303-485-9303 or visit Stonum Automotive today.

Ignition System Repair

An ignition system is a system for igniting (using an electric spark) a mixture of fuel and air in a gasoline engine. A properly working ignition system means a properly starting engine and high performance from your car. For all your ignition system maintenance and replacement needs, call or visit Stonum Automotive today.

Ignition Wires & Cables Repair

Ignition cables also known as spark plug wires are an important part of your car’s ignition system. They transfer the spark from the ignition coil to spark plugs that ignite the mixture of fuel and air. The mixture starts the engine. Over time, ignition wires and cables get weak and break down. This makes it impossible for the spark to reach the engine cylinders. This results in the engine misfiring. The car will eventually fail to start. If it does start, it will run poorly. Common symptoms of faulty ignition cables and wires are: poor gas mileage, engine misfires, engine light is on, and engine may vibrate. If your car needs new ignition cables and wires, call or visit Stonum Automotive in Longmont, CO 80501. Here, you will have the wires and cables changed by a top-rated mechanic.

Spark Plug Change Out

A spark plug delivers electric current to the combustion chamber from the ignition system. Spark plugs that haven’t been changed for a long time can cause ignition problems. At Stonum Automotive, we have automotive experts who will check and replace your spark plugs. For all your spark plug repair or replacement needs, call 303-485-9303 or visit Stonum Automotive today.

Oil, Lube, and Filter Change

To keep running smoothly, your car highly relies on oil, lube, and oil filters. Oil helps in lubricating, cooling, and cleaning the internal engine components. With time, motor oil becomes contaminated. Your car needs an oil, lube, and filter change every three months (or 3,000 miles). When it is time for a lube, oil, or filter change, take your vehicle to Stonum Automotive in Longmont, CO 80501.

Longmont, CO Towing Services

It happens to everyone, eventually: Your car won’t start. What’s more, you’re worried about trusting it to a repair shop you don’t know. Don’t worry because Stonum Automotive has a sterling reputation in Longmont. We understand the stress that comes with a breakdown, and can come tow your car – fast.

Here’s a handy tip: Put our number in your phone now, so you’ll have it when you need us:

303-485-9303.

Why Did My Car Break Down?

There are lots of reasons why a car that just won’t start up due to: weather, collision, and electrical issues are but a few of them. When you have problems with your car and are stuck by the side of the road, you need a reliable, experienced towing service. You need Stonum Automotive. With just one call, our towing specialists will be there to take the vehicle back to our shop for repair services.  Our vehicle diagnostic experts have the tools and the knowledge to get to the root of the problem.  You’ll appreciate our affordable towing services and our guarantee that your vehicle makes it back to our shop safely. For fast towing services, contact us at 303-485-9303.

Towing to Our Shop

Auto breakdowns are often unavoidable – this is regardless of how new your car is or how carefully you drive. When your car breaks down, the best option is to have it towed to a professional auto repair shop for repairs. This way, you can be back on the road as quickly as possible. To have your broken down vehicle towed to a quality Longmont auto shop for repairs, contact Stonum Automotive today. At Stonum Automotive, we have a ‘towing to shop only’ service whereby we tow your disabled car to our auto shop for repair. We hope you’ll get to know us before a breakdown happens, as some can be avoided. We offer fast towing and expert repair services for all makes of cars and trucks.

Complete Longmont, CO Auto Repair Services

For whatever else may pose a threat to your vehicle’s road performance, our knowledgeable auto specialists provide a number of other miscellaneous auto services. And because our work is guaranteed, you can rest assured that you’re receiving the best workmanship possible. Let us know how we can help you! Contact us at 303-485-9303 to set up an appointment for additional quality auto services.

Our miscellaneous auto services include:

Free Local Shuttle Service with Repairs By Appointment

When you drop your car at our garage for repair and servicing, you don’t always have the time to wait until we’ve finished servicing your car. To get your busy life going on, we offer free local shuttle services. At Stonum Automotive in Longmont, CO 80501, we offer free local shuttle services to our customers. This service allows you to conveniently go back to your day’s routine as we work on your vehicle – you don’t have to wait at the shop. This service is by appointment.

Trailer Hitches, Wiring and Tires

Although a trailer does not have an engine of its own, it does require some maintenance. The trailer needs wires to move current to the brake lights and other lights at the back. Stonum Automotive has qualified and experienced electricians who will handle your trailer maintenance. Call us at 303-485-9303 to schedule an appointment.

On-Site Welding

Welding is the fabrication and sculptural process that joins metal parts. At Stonum Automotive, we offer various welding services. Simply give us a call at 303-485-9303 or visit our shop in Longmont, CO.

Fuel Efficiency

The experts at Stonum Automotive can inspect your vehicle and perform services that can help it operate at peak performance and help improve fuel efficiency and overall fuel economy. These inspections and services may include items such as:

• Change engine oil, using the recommended grade of motor oil
• Check and change your air filter
• Inspect and, if necessary, replace a clogged fuel filter
• Adjust tire pressure to manufacturer-recommended specs
• Inspect/clean the intake system
• Inspect/replace emissions components and/or a faulty oxygen sensor
• Inspect brakes for proper adjustment
• Inspect power steering system and perform a steering alignment, if necessary
• Align front suspension
• Clean or replace dirty or malfunctioning fuel injectors
• Inspect/replace spark plugs and spark plug wires
• Check exhaust for clogged catalytic converter
• Examine the exhaust gas recirculation system

Pre-Purchase Inspections

Are you planning to buy a new car? Don’t take chances. Be confident about the car you are buying. Have pre-purchase inspections performed on the vehicle. Pre-purchase inspections involve examining the car’s condition to ensure it is worth buying. At Stonum Automotive, we have pre-purchase inspection experts – mechanics who will scrutinize any car, make, and model and allow you to make an informed decision. Pre-purchase inspections will definitely give you peace of mind when you buy your next used car.

Pre-Trip Inspection

A pre-trip check up can make the difference between a safe trip and one that ends in a tragedy. The inspection aims at looking for possible defects and potential mechanical problems that could cause disaster. Before embarking on a trip you should make sure your car is fully inspected for safety. You can rely on the experts at Stonum Automotive. We have pre-trip inspection experts who are able to conduct safety inspections on any car, make, and model. Our experts are dedicated to ensuring you have a safe trip. Simply drop by or give us a call at 303-485-9303.

Longmont, CO Engine Overhaul & Replacement

For the big jobs, take your vehicle to Stonum Automotive! Our expert services are ideal whether you have a late model import or newer domestic vehicle. And because we guarantee the work we perform, you can rest assured you are receiving the highest quality engine overhaul and replacement services in the Longmont, CO 80501 area.

Our heavy duty services include:

Engine Maintenance
Any car part manufacturer will tell you that preventive maintenance is critical to the part’s lifespan. Like other auto parts, car engines aren’t built to last forever. However, you can increase the engine’s lifespan by performing regular preventive maintenance. The easiest way to maintain peak performance and fuel economy is to provide regular engine maintenance for your vehicle. To have your engine maintained by experts, visit Stonum Automotive.

Engine Replacement
The engine converts energy into useful mechanical motion. This amazing machine is what keeps your vehicle moving. Although generally reliable, a car engine is susceptible to damage and breakdown. When this happens, do not sit and stress over it. Take action. Take the vehicle to a mechanic for an engine replacement. Bring it to Stonum Automotive. Visit us for quality engine replacement services.

Timing Belt
A timing belt is a part of your car’s internal combustion engine. The belt synchronizes the camshaft and the crankshaft rotation so that the engine valves open and close at the correct timings. Also, the belt prevents the piston from striking the valves in an interference engine. Most cars we drive now have timing belts instead of timing chains and gears. Although different manufacturers have their recommended mileage, you need to have your car’s timing belt checked regularly. To have it checked by experts, contact Stonum Automotive today.

Cylinder Block
A cylinder block is the powerhouse for the motor vehicle. The solid cast car part houses the cylinders and their components (gaskets, valves, and seals) inside a lubricated and cooled crankcase. Since it is one of the most important parts of your car, the block is designed to be extremely strong and sturdy. Although strong and sturdy, the block is susceptible to failure resulting in a vehicle that won’t start. Cracked blocks, porous blocks, core plug, or freeze plug failure are some of the problems facing cylinder blocks. Call 303-485-9303 to talk to the mechanics of Stonum Automotive about your cylinder block problems.

Cylinder Head
A cylinder head is the closed end of a cylinder (located in a car’s engine block). It sits above the cylinder block, closing the top of the cylinder and forming the combustion chamber. The cylinder head coordinates airflow in and out of the engine. Since the cylinder head’s chief function is to seal the cylinders properly, insufficient compression results in the car being difficult to drive. To have your cylinder head checked and repaired, talk to Stonum Automotive’s cylinder head repair and reconditioning specialists today.

Longmont, CO Engine Repair Services

Vehicles have gotten more complex over the years, That’s why it’s a good idea to let our trained professionals perform a vehicle diagnostic check on your car.  For example, if one of those frustrating ‘check engine’ lights comes on, you’ll want to bring your car in to us for a look. Our auto repair services are conveniently located in Longmont so you can stop in fast. If you’ve been putting off bringing your car in for service, now is an excellent time to so. We have some great specials that can save you money.  Ensuring your engine is up to par is an important component of a well-maintained vehicle. But you shouldn’t trust your engine repair needs to just anyone!

Not sure what’s causing your engine to run poorly, or make an odd noise? Don’t wait. If there’s a problem with your engine, it’s time to come see us. We’ll let you know what the problem is and fix it promptly.  Stonum Automotive offers affordable engine repair services that are hassle-free and reliable every time. Contact us at 303-485-9303 or send us an email for more details!

Our internal engine services include:

Longmont, CO Auto Electronics Repair

Don’t neglect your vehicle’s electronic systems – trust our experts to repair your vehicle properly the first time around! A poor driving experience can often be related to a malfunctioning computer or driving controls. Come to Stonum Automotive to ensure your vehicle is in top driving condition.

Our electronic services include:

Computer
Today, car manufacturers include at least one computer in motor vehicles. This computer’s main function is to monitor and adjust engine and transmission operations. The computer receives input information from different sensors. The computer controls spark plugs, idle speed, and fuel injectors so as to get you the best possible car performance. Failure of the car computer will greatly affect the things it controls. To get the most out of your car’s computer, have it evaluated regularly for updates and proper operation. If it is already failing, have it repaired or replaced. To have your car’s computer handled by experts, visit Stonum Automotive in Longmont, CO 80501 today.

Diagnostics
Mechanics at Stonum Automotive are able to diagnose all the electronic parts in your car. For expert diagnostics services on your car’s electronic devices, visit Stonum Automotive today.

Drivability
Drivability is the degree of smoothness and steadiness of your car’s acceleration. Most modern cars are fitted with on-board computers that continuously check the readings from various sensors. In case of drivability problems, you will receive a warning message on your car’s dashboard. To have your car diagnosed for drivability issues, visit Stonum Automotive in Longmont, CO 80501 today. At Stonum Automotive, we have the necessary tools, training, and technology to diagnose and address your car’s drivability issues.

Engine Controls
Basically, an engine control system is an on-board computer in your car. Like all computers, the engine controls are composed of hardware and software. Automotive engine control systems are responsible for regulating exhaust emissions, and providing increased fuel economy. To get the best out of your car’s incredibly powerful technology, make sure engine controls are working properly. To check if your car’s engine controls are working properly, call Stonum Automotive today.

Longmont, CO Transmission Repair Services

From manual to automatic transmission repair, Stonum Automotive in Longmont, CO 80501 knows how to fix the problem. Our knowledgeable auto experts will diagnose the situation and help you make a decision. Leave the dirty work to us!

Our competitively priced transmission services include:

Automatic Transmission Repair

Automatic Transmissions shift between gears automatically to optimize driving, and changes gears based on the driver’s throttle pedal, vehicle speed, engine speed, and vehicle load. Typical automatic transmissions have 4-5 forward gear ratios, a Reverse, Park, and Neutral gear. Shifting gears occur automatically once the car is in Drive and there is no need for a clutch pedal or gear shift like there is in a Manual Transmission. Automatic transmission repair is complicated based on all the components that make it up, and you need to have any automatic transmission issues properly assessed by auto mechanics. Call 303-485-9303 to talk to the mechanics of Stonum Automotive about your transmission problems.

Clutches Repair

There are clutches in both automatic and manual transmission cars, and different types of clutches. When shifting gears, the clutch engages and disengages from the flywheel and transfers the torque through the transmission. Clutches should help your vehicle start and shift gears smoothly. The clutch in your car receives a lot of wear and can eventually wear out. If your clutch begins slipping irregularly or is making noises that are raising suspicion, contact Stonum Automotive to see if clutch replacement is necessary.

Four-Wheel Drive Transmission Repair

A four-wheel (4×4) drive vehicle has differential gears, both front and rear axles, and a transfer case attached to the transmission. Four-wheel drive vehicles demand maintenance on the transfer case, front differentials, rear differentials, and transmission fluids. Visit us for service on your four-wheel drive transmission services.

Front-Wheel Drive Transmission Repair

If your vehicle has a Front-wheel drive, the engine drives the front wheels only. The power is routed through the transmission to the final drive where it is split and sent to the two front wheels through the drive axles. The engine, transmission, and additional hardware are all located in the front of the car. If you are in need, Stonum Automotive of Longmont, CO will gladly repair front-wheel drive transmission vehicles.

Manual Transmission Repair

Driving a vehicle with a Manual Transmission requires using the clutch pedal and gear shift to manually shift gears based on the speed of the vehicle. Manual transmissions have been built with anywhere from two to eight gears. Front-wheel drive and rear-wheel drive are the two main configurations for manual transmissions. Typically, manual transmissions require less maintenance then automatic transmissions. At Stonum Automotive, our auto mechanics can diagnose your vehicle and then recommend the transmission repair or transmission service you need to ensure safety and improve the lifetime of your vehicle.

Longmont, CO Auto Electrical Repair & Maintenance

Electrical problems are some of the most frustrating issues a car owner can face. Let Stonum Automotive get to the bottom of these problems for you and fix them fast. Have a dead battery? Misfiring starter or alternator? For all of your auto electrical repair and maintenance needs, come to Stonum Automotive in Longmont, CO 80501. We service your vehicle with care, providing a high level of workmanship you can trust.

So many processes in your vehicle depend on the electrical system. Let’s review some of the many things you rely on in your car that are directly affected by the electrical system (short of the battery and alternator):

• Interior lights, headlights, brake lights
• Power seats
• Power windows
• Power mirrors

…and many more. Plus one has to think about other vital systems. Faulty electrical connections can make various lights come on, including the check airbag light, which can be a complex problem to fix. Stonum Automotive’s experts can troubleshoot and fix all of these and more electrical related problems. Here are two of our specialties:

Batteries

The battery supplies electric energy which powers the ignition system, the starter motor, and the lights of an automotive. If you need to jump-start your vehicle in the morning, your battery is failing. When a battery starts deteriorating, it can either be replaced or repaired – this will depend on the severity of the damage. If you are having issues with your car battery, contact Stonum Automotive in Longmont, CO. We provide a convenient battery testing and replacement service to get you back on the road. Battery replacement, charging, installation, testing, and recycling – we handle it all.

Starters

A starter is a motor (electric, hydraulic or pneumatic) that rotates the internal combustion engine to initiate the engine’s operation. Starters are important parts of your car’s engine and their failure would translate to your car’s failure. When your car’s starter develops problems, seek expert help. At Stonum Automotive, we have experts who can handle all your starter needs to get you back on the road – quickly. Visit Stonum Automotive today.

Longmont, CO Auto A/C & Heating Services

If the breeze from those open windows just isn’t cutting it, come by our shop in Longmont, CO 80501 to get an expert opinion on what we can do to fix your auto A/C or heating problems. We offer affordable prices and guaranteed workmanship. Contact us at 303-485-9303, so we can help you drive in comfort.

Why maintaining your AC System is very important:

Heating and A/C systems may break eventually with usage, hose pipes may clog and drip if not serviced, causing reduced efficiency heating and cooling capabilities. Regular maintenance will keep your AC system operating at peak performance!

Indications your A/C system may be having issues:

• If your air conditioning blows only slightly cooler air compared to the exterior air
• Air that blows in smells damp, musty, or like mildew and mold
• Your cabin does not warm up in cold weather, or is just a little warmer than outside
• The defroster takes longer than typical to operate, or does not operate
• Your heater or A/C only functions when driving, not when idling, or quits blowing when the car is stationary
• Your heating system blows cold air, or the air conditioning blows warm air
• Low airflow even at the highest fan setting.

A comprehensive evaluation of heating and A/C system includes:

• Examining the internal controls and blower
• Checking radiator coolant operating temperature, hoses, pressure radiator cap and thermostat
• Inspecting the compressor belt
• Inspecting system and seals for leaks or various other damages.
• A cooling system pressure test
• Verifying the A/C pressure meets manufacturer specifications
• Measuring the interior vent air temperature

Our repair and maintenance services include:

Air Conditioning
Have you been sweltering in your vehicle lately? Perhaps your car’s air conditioner isn’t functioning properly. At Stonum Automotive we have qualified service professionals who can fix your air conditioner. To have an air conditioning system serviced, repaired, or replaced by experts consider visiting Stonum Automotive. You can also call us at 303-485-9303 with any questions relating to your vehicle’s air conditioner.

Belts
A fan belt, also known as a drive belt, is a belt connecting your car’s engine to the front mounted accessories. The fan belt rotates the water pump and engine fan, which maintains a cool environment for the engine and its components. Sooner or later, your vehicle’s fan belts will dry out and crack. When you are ready for a replacement you can count on Stonum Automotive for all your vehicle’s repair needs.

You not only have to get the belts replaced with quality ones but you should have the work done by experts. To have the belts replaced by auto cooling and heating experts – and get your car driving right – visit Stonum Automotive today. The mechanics at Stonum Automotive will thoroughly inspect your car’s belts; replace all worn belts; and adjust the installed belts.

Radiators
Radiators are heat exchangers for cooling your car’s internal combustion engine. A radiator cools the engine by circulating an engine coolant through the engine block – it then loses the heat to the atmosphere through radiation. A radiator has a set of tubes through which the engine coolant flows. Fins surround these tubes. When the radiator fails, the excess heat produced by the engine could damage the engine components. To prevent this from happening, have your radiator serviced regularly. To have your radiator needs handled by experts, visit Stonum Automotive today.

Longmont, CO Undercar Maintenance & Repair

Rely on Stonum Automotive in Longmont, CO 80501 to provide quality care for your vehicle’s undercarriage. Stop by our shop to see how we can help you or call 303-485-9303 for more information.

To keep your vehicle running at peak performance, we provide undercar services that include:

Alignment

Wheel alignment (or simply alignment) is standard car maintenance that involves adjusting the angles of the wheels so that they are set to the manufacturer’s specifications. The main purpose is to let the suspension and the steering systems operate at their desired angles – this reduces tire wear. Alignment is a complicated process and not all mechanics get it right. To have experts handle your car’s alignment, visit Stonum Automotive.

Anti-Lock Brakes

Anti-lock brakes prevent wheel lock-up when rapidly decelerating by automatically modulating the brake pressure during an emergency stop. With this system, the wheels are able to maintain traction with the road while braking. Failure of the anti-lock brakes could lead to an increase in the risks of multiple vehicle crashes and run-off road crashes. To avoid this, have your anti-lock brake system checked and repaired by experts. At Stonum Automotive, we have anti-lock brake experts who will examine and repair your faulty ABS – keeping you safe.

Brakes

A brake is a mechanical device for slowing or stopping a vehicle (usually by means of friction). In short, a brake inhibits your car’s motion. It lets you stop the car whenever and wherever you choose. Brakes are one of the most important parts of a motor vehicle. Without them, you would not be able to stop the car. If your vehicle’s brakes are having issues, consider having them worked on. Brake experts at Stonum Automotive can work on your car’s brakes to ensure you have a safe drive.

Chassis

A chassis is the car’s internal framework that supports the body and other parts like the wheels, engine, transmission, driveshaft, differential, and suspension. A weak or damaged chassis will translate to a weak car. To have a strong and properly working vehicle, have your car’s chassis checked for defects. At Stonum Automotive, there are experienced undercar service providers who can work on your chassis.

Exhaust

In a motor vehicle, an exhaust system is a piping used to guide exhaust fumes away from the engine – usually to the rear of the vehicle. A properly functioning exhaust system not only sounds better, it is better – for you, your car, and the environment. Stonum Automotive has expert technicians to service your car’s exhaust system.

Driveline

A driveline is a part of your motor vehicle that connects the engine and the transmission to the wheel axles. The driveline consists of the parts of the powertrain less the engine and transmission. Failure of the driveline means that the car would not move since energy cannot be transmitted from the engine to the wheel axles. Therefore, make sure that your car’s driveline is regularly inspected and serviced. And, at Stonum Automotive, you can have the driveline serviced by experts.

Shocks

Shocks (or shock absorbers) are mechanical devices designed to smooth out rough roads. The devices do this by converting kinetic energy to another form of energy. Properly working shocks reduce the effect of traveling over rough ground, leading to improved ride quality and vehicle handling. When shocks develop problems, driving on poorly leveled roads becomes unpleasant, and your vehicle may sway when turning. To have your vehicle’s shocks diagnosed and repaired, visit Stonum Automotive today.

Longmont, CO  Auto Repair Services

Whether you have a car that’s been sitting a little too long or a fleet that needs a basic check, Stonum Automotive in the Longmont, CO 80501 area can get your vehicle back on the road quickly, and we work with your insurance company to ensure you get the best repair job at a competitive price.

To schedule an appointment or find out more about what we can do for your vehicle, contact us at 303-485-9303.

Our expert auto repair services include:

Domestic General Repair
No matter how carefully you drive, your domestic car will need occasional general repairs. These general repairs may include engine diagnostics and repairs, alignments, brakes, front end and rear end diagnostic services and electronics service and repair. To have your domestic vehicle repaired and maintained, contact Stonum Automotive today. At Stonum Automotive, we have experts who can handle even the most challenging domestic vehicles.

Fleet Maintenance and Repair
As a fleet owner, you have to do all it takes to keep the fleet on the road. When any vehicle is out of service, both revenue and your reputation as a reliable business are at risk. To make sure your fleet of trucks/vehicles is always on the road, partner with a professional auto shop. At Stonum Automotive, we can manage your fleet repairs and maintenance. We make sure servicing is up to date and up to standards. We handle all aspects of fleet repairs and maintenance.

Import General Repair
Import vehicles can be an economical or stylish alternative to domestic cars. Obviously, they will require general repairs at some point. Additonally, maintenance and repair of these vehicles requires knowledge and tools not possessed by many auto shops. If you have issues with your import vehicle, contact or visit Stonum Automotive today for professional import general repairs. We have the expertise required to get your vehicle running like new again.

Off-Road Vehicle Repairs
An off-road vehicle (also known as an off-highway vehicle) is a vehicle capable of driving on and off paved roads. An off-road vehicle can comfortably use any type of road. These vehicles are characterized by large tires. When an off-road vehicle develops problems, it should be serviced by a shop that has experience in off-road repair. For expert off-road vehicle repairs, contact or visit Stonum Automotive today.

Auto Repair & Maintenance Service

In Longmont, CO there are a lot of auto repair shops. Instead of bringing your car to a shop where you don’t know the level of expertise or experience of its technicians, we invite you to visit Stonum Automotive. Our techs ensure a thorough and professional job; whether you need an oil change, a brake job, or a transmission or engine overhaul. We have the experience you’re looking for.

Start with scheduled maintenance and get to know our knowledgeable technicians. They will ensure your car is serviced properly in every season so you will be able to drive safely and comfortably. That old saying ‘an ounce of prevention is worth a pound of cure’ couldn’t be more true when it comes to car care. Let Stonum Automotive prove it to you.

The Best Technicians & The Best Automotive Diagnostic Equipment

We use high-tech diagnostic equipment to guarantee your vehicle is repaired and/or serviced correctly the first time around, and we only use the highest quality replacement parts, filters, oils, and components when it comes to your car.

Our services include:

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Don’t wait until your car exhibits signs of problems to come see us. Our Longmont, CO auto repair shop can keep your car running great and keep an eye out for issues before they become problems. Visit us at 1812 Sunset Place, Longmont, CO today.

Engine Maintenance

Engine maintenance is vital to keep your car or truck operating at peak performance. It also impacts the longevity of your vehicle’s engine. Trust the experts at Stonum Automotive to help you protect your investment. Call us at 303-485-9303 or visit our shop in Longmont 80501.

These are some of the engine maintenance services we offer.

Fuel Injection

Fuel injection is a system for admitting fuel into an engine. Since 1990, fuel injectors have completely replaced carburetors as the primary means of getting gasoline into the engine. A fuel injector atomizes the fuel by forcibly pumping it through a small nozzle (under high pressure). Failure of the fuel injection system means poor performance and ultimately destroys the engine. Make sure your vehicle’s fuel injection system is maintained properly. For all your fuel injection maintenance and replacement needs, call 303-485-9303 or visit Stonum Automotive today.

Ignition

An ignition system is a system for igniting (using an electric spark) a mixture of fuel and air in a gasoline engine. A properly working ignition system means a properly starting engine and high performance from your car. For all your ignition system maintenance and replacement needs, call or visit Stonum Automotive today.

Ignition Wires & Cables

Ignition cables also known as spark plug wires are an important part of your car’s ignition system. They transfer the spark from the ignition coil to spark plugs that ignite the mixture of fuel and air. The mixture starts the engine. Over time, ignition wires and cables get weak and break down. This makes it impossible for the spark to reach the engine cylinders. This results in the engine misfiring. The car will eventually fail to start. If it does start, it will run poorly. Common symptoms of faulty ignition cables and wires are: poor gas mileage, engine misfires, engine light is on, and engine may vibrate. If your car needs new ignition cables and wires, call or visit Stonum Automotive in Longmont, CO 80501. Here, you will have the wires and cables changed by a top-rated mechanic.

Spark Plugs

A spark plug delivers electric current to the combustion chamber from the ignition system. Spark plugs that haven’t been changed for a long time can cause ignition problems. At Stonum Automotive, we have automotive experts who will check and replace your spark plugs. For all your spark plug repair or replacement needs, call 303-485-9303 or visit Stonum Automotive today.

Longmont, CO Fleet Maintenance & Repair

Stonum Automotive is your source for fleet maintenance and repair in Longmont, Colorado. Our team of ASE Certified Technicians will work closely with you to make sure your fleet stays on the road and in service to support your revenue and reputation.

Custom Maintenance Programs

We will customize a maintenance program to meet the unique needs of your company and your fleet. Talk to Stonum’s Fleet Service team about the right maintenance schedules for your fleet based on the miles driven by each car, truck, or van. Creating the right customized schedule is the best way to ensure that you don’t lose valuable income during service intervals and unexpected repairs.

We Partner with Vendors to Get You the Best Prices & Quick Fixes

Stonum Automotive partners with various vendors across Northern Colorado to get your company the right parts for the right price. This includes your fleet’s glass and body repair needs. We can even help with unexpected breakdowns, offering towing that includes a pick-up and delivery service. Anything your fleet vehicles may need, we can cover.

Comprehensive Services

Trust Stonum Automotive to keep your fleet servicing up to date and up to the highest standards. It starts with our high-tech diagnostic equipment to guarantee correct repairs. We also use the highest quality replacement parts, oils, and components on your fleet. Our certified technicians offer years of experience managing all aspects of fleet repairs and maintenance including:

• Brakes
  • Brake problems can quickly endanger your fleet and worsen existing problems. We recommend bringing fleet vehicles in for inspection if your driver’s experience any of the following:
    • Hearing a squeaking noise when applying the brakes
    • Shaking, grinding, or other noises when stopping
    • Having to push the brake pedal harder
    • Feeling no pressure in the brake
    • Strange vibrations when stopping
    • Taking longer to stop than usual
  • Drive Train
    • Our knowledgeable experts can diagnose any issues with your drive train and provide any necessary repairs to any components.
  • Electrical
    • Our team will get to the bottom of any electrical issues with your fleet including dead batteries, misfiring, starters or alternators, check airbag lights, and more.
  • Electronics
    • Our team is trained to navigate malfunctioning computers or driving controls to ensure your fleet vehicles are operating in the best condition.
  • Engine Work
    • We will help increase your engine’s lifespan with regular preventative maintenance. We also provide engine replacements and service to timing belts, cylinder blocks, and cylinder heads.
  • Trailer Work
    • Trailers on your fleet need wires to move current to the brake lights and other lights at the back. Our technicians can handle all of your trailer maintenance needs.
  • Alignment Services
    • Leave it to our team to handle fleet alignment services to let systems operate at desired angles and reduce tire wear.
  • General Maintenance
    • Our auto specialists can provide a variety of general auto services for whatever else may pose a threat to your fleet vehicle’s road performance.

Fleet Warranty Coverage

When you become a fleet service member with Stonum Automotive, you will receive a generous warranty to cover both parts and labor on all the work performed by our ASE Certified Technicians. Discuss your warranty coverage needs with our team today.

ASE Certified Technicians

Stonum Automotive hires the best ASE Certified Technicians around. They choose us for the opportunity to work with a trusted auto shop that works as a team and provides the very best for both customers and staff. These certified technicians are dedicated to keeping your fleet on the road and reliable. Not only this, but we will make the entire service process easier from start to finish with transparent communication, timely responses, and a trusted work ethic.

Why Choose Stonum Automotive

We understand the importance of having a professional your business can rely on. Stonum Automotive will work with you to successfully manage your fleet without any pain or hassle. We have been voted Longmont’s Best Auto Repair Shop/Service multiple times, making us the obvious choice for all of your fleet service needs in Northern Colorado. Stonum Automotive also specializes in Car Care Services, General Services, Undercar Services, Brake Repair, Heating and Cooling Services, Electrical Services, Transmission Services, Electronic Services, Internal Engine Services, Engine & Transmission Services, and Towing and Miscellaneous Services.

We look forward to working with your company and building a lifelong relationship with your team! Contact Stonum Automotive today to inquire about fleet maintenance and repair.