Question about 2004 Jeep Grand Cherokee

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Engine miss I was wondering if anyone could help us out. We started having hesitation problems. We changed the fuel filter and air filter. Then our jeep wouldn't start. We thought it was the fuel pump but when you turned the key you could hear the fuel pump working. It is like the jeep is having engine failure. It will idle like a charm. We checked all the fuses. We are not sure where to go from here. Any suggestions would help!! Thanks

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  • yadayada
    yadayada May 11, 2010

    You need to run a scan test of the system to pull the trouble codes out, otherwise it is like driving without a road map to the destination.

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We had the same problem a few months ago...we took it in and all the codes pointed to spark plugs and fuel injectors..when we finally decided to take it to the mechanic, it had excessive deposits on the injectors..the hit it 2 times with some chemical treatment and it's back to normal..cost us about $200. Hope this is helpful..

Posted on Oct 06, 2008

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I would check fuel pressure its self, What engine do you have the 4.0L or the V8? If known I could help you with schrader valve placement.

Posted on Sep 29, 2008

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