Engine Maintenance

Engine maintenance is vital to keep your car operating at peak performance. It also impacts the longevity of your vehicle's engine. Trust the experts at Marque Motors to help you protect your investment. Call us at 503-293-5386 or visit our shop in Portland 97219.

These are some 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 Marque Motors, we can pull the code and diagnose the problem for you. Give us a call at 503-293-5386 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 Marque Motors 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.

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 every 3-5 months (3,000-5,000 miles depending on your oil spec and vehicle) 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 Marque Motors, we have automotive experts who will check and replace your spark plugs. For all your spark plug repair or replacement needs, call 503-293-5386 or visit Marque Motors 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 Marque Motors 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 Marque Motors in Portland.

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 Marque Motors 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 Marque Motors 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.

What does an intermittent flashing check engine light mean?

Flashing check engine lights warn of severe situations requiring immediate attention. Get your vehicle to an auto repair shop as quickly as possible or get it safely parked and call a tow truck to take it to your preferred auto repair shop.

When your check engine light is flashing, we highly recommend you pull over right away and find a safe place to shut your car off. We recommend you call a tow truck to take your car to your mechanic to decrease the risk of damaging your engine further by driving with a possible problem. If you are not sure what to do, please call us for advice.

To learn more about our Engine Maintenance services, call us at 503-293-5386 or request a quote by clicking below:

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