Question about 2000 Jeep Cherokee

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The check engine light keeps coming on and shutting off. I checked all the fluids and there is nothing low. The only thing that i can see that is different is the oil gauge goes up and down when I stop and then take off.

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The check engine light comes only when the computer control unit (called the PCM) senses a fault in the electronic controls of the engine and/or the emission system, there are about 200 possible faults that turn the light on, to know what has developed a problem you must have the system tested, this is called an OBD2 fault code test, Kragen and Autozone parts stores do this testing for free.

Posted on May 27, 2010


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Push brake and hold
Wait for flashing lights sequence
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Air Bag Deployment Ckt
LIGHT out ;-)

Look for Jeep Err codes on ;-)

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