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My check engine light is on and when i set it to drive the drive light will then start to flash, what does it mean when it start to flashes.

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The fact that the check engine light and flashes, it is on is an indication that there is a bad catalytic converter, wet engine, faulty oxygen sensors or a blown gasket head. This means that you need to have the engine thoroughly serviced. Get more information on http://www.edmunds.com/car-care/what-your-check-engine-light-is-telling-you.html and http://auto.howstuffworks.com/under-the-hood/diagnosing-car-problems/mechanical/check-engine-light.htm.

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I know on some cars, most GM cars, when the check engine light flashes, it is trying to flash you a code. You count the number of blinks- pause, then blinks = code.
some cars, Fords, will flash the yellow check engine light when the car is burning way to rich and will do damage to the catalytic converter if the car isn't fixed, or parked in a day or two.

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I had a car, Ford, that did that when the overflow was empty! It was so annoying LOL. But, it's what these cars do now to prevent certain hazards.

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rshackleford

Autozone has a way to read the error code and tell you whats wrong.

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