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2007 Jeep Grand Cherokee Question: P 0302 code caused by engine cleaning?



lougood, 3.7L V6, Kittanning, PA, November 16, 2012, 08:09

MIL blinks and/or stays on - Getting P 0302 code (cyl.#2 misfire). Just had car detailed, they "cleaned" engine compartment. Would degreasing/water spray cause this code? If so, will it go away over time?

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  • Answer #1

    November 16, 2012, 08:18

    Yes, the best thing to do is NEVER spray water on an engine unless it's on fire!
    Maybe not even then! Best thing to do is dry ignition on # 2 cyl. use a little WD-40.
    Pull coil on 2 and do this, inside the plug boot also.

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  • Answer #2

    Greg's Orange Auto (14961 Answers) , Orange, CA - (714) 361-9386
    globalhelper November 16, 2012, 09:35

    poss shorted coil pak also iv seen that

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