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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Check engine light


Get in car
Push brake and hold
Turn IGN ON/OFF/ON/OFF/ON
Wait for flashing lights sequence
Write then down (3 blink, pause, 2 blink pause, 7 blink, LONG pause = 327.. then another one comes, and another... these are what is keeping light on

Could be LOW Oil
Low Water
Low Washer fluid
Low Pwr Steering Fluid
Worn Brakes
Low Trans Fluid
Low Diff Fluid
Air Bag Deployment Ckt
LIGHT out ;-)
other.....

Look for Jeep Err codes on scroogle.org ;-)

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