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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 »

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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 »

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The check engine light illuminates on a Mazda to indicate the powertrain control module has detected a problem in the engine or transmission of the vehicle. The powertrain control module is a computer that manages the ve... More »

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A "low coolant" warning on a vehicle usually means that the vehicle is low on the cooling fluid inside the systems that prevent overheating of the engine. The coolant level can be verified by checking the coolant backup ... More »

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When a vehicle stalls in any gear, it's generally a problem with the amount of fuel, amount of air or electric spark getting to various parts of the vehicle's engine. An occasional stall while in reverse doesn't necessar... More »

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