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The "service engine soon" light indicates that the vehicle's on-board diagnostic computer has detected a problem with one of the car's systems. The computer processes input on system operating parameters while the car is... More »

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A Nissan Sentra "service engine soon" light can come on for many reasons, including a loosened gas cap. If the "service engine soon" light stays on, it can indicate problems that need to be fixed as soon as possible. More »

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It is possible to turn off the check engine light on a vehicle, including a Grand Am, by disconnecting the battery. It must remain disconnected for at least five minutes. In some cases, this won't remove the trouble code... More »

www.reference.com Vehicles Car Parts & Maintenance
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A Nissan Sentra "service engine soon" light can come on for many reasons, including a loosened gas cap. If the "service engine soon" light stays on, it can indicate problems that need to be fixed as soon as possible. More »

www.reference.com Vehicles Car Parts & Maintenance

A lit check engine light in a vehicle is indicative of one or more problems including faulty oxygen sensors, leaking hoses or manifolds, damaged fuel injector O-rings, a blown head gasket and a loose or damaged gas cap. ... More »

www.reference.com Vehicles Car Parts & Maintenance

The "service engine soon" light on a Dodge Grand Caravan indicates a problem in the engine or emissions sensors. Before bringing the vehicle in for service, the owner should check for a loose or missing gas cap. AllPar e... More »

www.reference.com Vehicles Car Parts & Maintenance

The service engine soon light, commonly referred to as the check engine light, on a 2000 Chevy Silverado, or any vehicle, can have a number of meanings depending on the issue. If the light is steady, it typically indicat... More »

www.reference.com Vehicles Car Parts & Maintenance