Question about 1999 Jeep Grand Cherokee

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Need help Hello ,I have a 1999 grand cherokee and it is asking me to perform service & my check engine light comes on sometimes

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  • Anonymous Apr 17, 2009

    want 2 reset check engine light

  • chryslerpro May 11, 2010

    start with the key off. then turn it all the way on (do not start) and back off 3 times and on the 3rd time watch your odometer. it should say P0xxx where the x's are numbers. That will give a starting point for your check engine light. The service engine soon light means you're due for an oil change. You can reset it with the menu and step buttons on the overhead computer

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I had the same problem I believe.....
Changed the spark plugs and at the same time I changed the oil & Filters, (Oil & air ). You may not need to change the air fliter, But mine needed it. With the step buttons on the overhead, I could not find any reset. (my check engine light staied on) I'm no Darn Computer geek & frustrated easly by them. LOL ....So I disconected the battery cable, ( waited 15 to 20 sec) then reconnected the cable and this resets the computer. No more worning signs.
You may just need to change the oil & filter and reset the cp. Hope this helps
RC

Posted on Apr 17, 2009

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