Question about 1997 Jeep Grand Cherokee

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Jeep GCL Backfires Stalls

Heres a long one for you. I have a !997 Jeep GCL 4.0 straight 6cyl. 185,000 and some odd miles. The car starts up great in the morning. Runs really well. After I make my first few stops of the day it starts to hessitate while driving. Backfiring. Stalling. Hard starting. As the day goes on the worse it gets. I have put over 1500 in parts on this car and still no answers. I gave engine misfire code and map sensor code even after everything has been changed. ABS light comes on at times before misfires happen.

Changed-
Plugs, wires, button, dist cap, map sensor, O2 sensors, fuel pump, filter, crank position sensor, cat converter, muffler (blew apart during a backfire one day)

Whats the deal here? I have had 3 different shops look at it but nothing has changed.

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  • aaron_jaxon Dec 21, 2008

    Replaced computer. Same issues. I did fix it by soaking a rag in oil and shoving it in the gas tank. Lit it and ran! No. Not really. Sold the car to some guy that said he could fix it. $2500 To recover the all the new parts i put into is and a down payment on a new ride. PROBLEM SOLVED!

  • Anonymous Jan 23, 2009

    1997 jeep backfiring

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Aaron, I had the same problem. It is the most expensive part of course the computer. I replaced everything as well till I replaced it. They are remanufactured and have had problems with them as well. I am on my third one now at 200k miles. Oh and by the way it does not show up on the diagnostic check. Good luck

Frank

Posted on Dec 01, 2008

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