Engine Maintenance in Longmont, CO
Professional 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 Bowen Street Garage to help you protect your investment. Call us at 303-651-2220 or visit our shop in Longmont for expert engine maintenance.
Engine Maintenance Services
Below is a comprehensive list of the engine maintenance services we offer
Check Engine Light
No one likes to see their car's "Check Engine" light come on. The light could mean a costly problem, like a bad catalytic converter, or it could be something minor, like a loose gas cap. At Bowen Street Garage, we can pull the code and diagnose the problem for you. Give us a call at 303-651-2220 or stop by the shop for our expert assistance.
Diesel
Although diesel engines don't require tune-ups and tend to last longer than gasoline engines, they do require regular maintenance. Typical maintenance tasks include:
- Changing the oil & filter
- Changing the air filter
- Changing the fuel filter
- Bleeding the fuel system
- Draining the water separators
- Refilling the urea injection system
You can count on the experts at Bowen Street Garage to help your diesel engine last a long time.
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.
Oil Service
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 Bowen Street Garage in Longmont, CO 80501.
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 Bowen Street Garage, we have automotive experts who will check and replace your spark plugs. For all your spark plug repair or replacement needs, call 303-651-2220 or visit Bowen Street Garage today.
Spark Plug Related FAQs
How do you know when a spark plug needs to be replaced?
The most common sign that a spark plug needs replacing is an engine that hesitates during acceleration. Other warning signs may include engine misfires during startup, rough idling, sluggish acceleration, declining fuel economy, and engine knocking.
What else should I replace when replacing spark plugs?
If you're considering having your vehicle's spark plugs replaced, there's a good chance the spark plug wires should be replaced as well. Ignition wires become brittle over time, and worn wires can lead to engine misfires, poor performance, and reduced fuel economy.
Check Engine Light FAQs
What could cause a check engine light to come on?
Come by Bowen Street Garage and we can diagnose the reasons for a check engine light turning on. It can range from something serious like a faulty catalytic converter or potential engine failure to something simple like a loose gas cap or the need for a routine 50,000- or 100,000-mile manufacturer maintenance service.
Is it okay to drive with the engine light on?
The short answer is no. The longer explanation is that the light may indicate a serious engine problem, and continuing to drive as if nothing is wrong could result in much more expensive repairs. A check engine light means you should have your vehicle inspected as soon as possible by a professional at Bowen Street Garage in Longmont.
What is the most common problem with my check engine light?
A loose gas cap is one of the most common reasons a check engine light comes on. However, the best way to determine the exact cause is to have a technician at Bowen Street Garage read the diagnostic code stored in your vehicle's onboard OBD computer.
What does a solid check engine light mean?
A steady check engine light generally indicates a non-emergency issue that still needs attention. Come by Bowen Street Garage and we'll help diagnose and resolve the problem before it becomes more serious.
What does an intermittent flashing check engine light mean?
A flashing check engine light is a warning of a potentially severe problem that requires immediate attention. Get your vehicle to an auto repair shop as quickly as possible, or safely park it and arrange for a tow to your preferred repair facility to avoid further engine damage.
To learn more about our Engine Maintenance services, call us at 303-651-2220 or request a quote by clicking below:
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OUR REVIEWS
Longmont, CO
Camilo Pineda, 05/05/2026It is really great to have a local Mechanic that you can trust with your vehicles. I have been taking my Sprinter for regular service to the Bowen street garage and they always have been excellent. We are lucky to have such a great shop in Longmont.








