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 Complete Auto Center to help you protect your investment. Call us at 703-331-0444 or visit our shop in Manassas 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 Complete Auto Center, we can pull the code and diagnose the problem for you. Give us a call at 703-331-0444 or stop by the shop for our expert assistance.

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.

Ignition
Your vehicle's ignition system is responsible for starting the engine by delivering an electrical spark that ignites the air-fuel mixture in the combustion chamber. Issues can involve a worn ignition switch, a faulty ignition coil or broken or corroded wiring. These problems can lead to symptoms like the engine failing to start, intermittent stalling, dashboard warning lights, or even complete power loss while driving.

Ignition Wires & Cables
These vital parts 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. Common symptoms of faulty ignition cables and wires are: poor gas mileage, engine misfires, engine light is on, and engine vibration.

Oil, Lube, and Filter
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) in order to function optimally.

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 Complete Auto Center, we have automotive experts who will check and replace your spark plugs. For all your spark plug repair or replacement needs, call 703-331-0444 or visit Complete Auto Center 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 Complete Auto Center 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 Complete Auto Center in Manassas.

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 Complete Auto Center 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 Complete Auto Center 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 703-331-0444 or request a quote by clicking below:


Request Quote


reviewiconCustomer for Life
Engine Maintenance, near Manassas, VA

Kevin is awesome and honest!! We brought our Nissan Rouge in to him for what has now become a recurring problem. He went out of his way to help us out and provided honest advice on just how much to fix or not fix and if we should get rid of it or run it into the ground. At this time, this will be the last repair for the Nissan, but it wont be the last visit to Complete Auto Center. He has made a customer for life out of us.



reviewicon100% Satisfaction
Engine Maintenance, near Manassas, VA

Great service and highly informed staff. These guys are consistently looking at how they can save money for me, often reducing labor costs, and providing straight forward information. I always leave feeling like I'm taken care of. Good work and fair pricing -- I'm 100 % satisfied!



reviewiconQuality Work
Engine Maintenance

Highly recommend Kevin and this shop! Amazing customer service, fast but quality work and very good prices! Honesty with mechanics is hard to find and that is all you will get here!



Discover More About Engine Repair Services At Complete Auto Center in Manassas

Engine Heating & Cooling Services
Auto Maintenance Services
Transmission Repair Services


Partners

ASE (Automotive Service Excellence)
Jasper
Mitchell1
BG Products
Car Care Aware

What our clients are saying about us

We have established longterm and stable partnerships with various clients thanks to our excellence in solving their automotive needs!

My car was slowly leaking oil in my driveway. After receiving a mis-diagnosis from another repair shop, my neighbor recommended that I go to Complete Auto Center. Kevin and his crew correctly determined the problem and resolved the issue. No more leaks! Highly recommend Complete Auto -- these guys really know their stuff! quotes-image
, 07/10/2026
Kevin is so honest and helpful. Highly recommend! quotes-image
, 06/19/2022
reviewicon