Some 2007-08 Grand Cherokee and Commander SUVs with 5.7-liter engines may turn on the Check Engine light and store trouble code P0420 and/or P0430 in PCM memory. Jeep says the problem typically ...
While your car can’t talk, it communicates with you using chimes, icons, and messages. One icon that you should never ignore is the check engine light. It turns on when the car’s onboard computer ...
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