Question about 1999 Jeep Grand Cherokee

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1999 Jeep Grand Cherokee Died while driving home

The jeep died while driving i was accelerating and then the pedal dropped nothing. i had brakes but then the gas light,check gages light, and check engine light came on. it has about 3/4 tank of gas. i checked all the fuel lines and replaced the fuel pump and it still wont start. any ideas what could be the problem??

thanks

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  • 2 more comments 
  • mstowe1990 May 19, 2009

    no the engine does not start and when i was driving it what i meant by the pedal dropped was that it was not accelerating and i could step on it but nothing was happening

  • mstowe1990 May 20, 2009

    ok awesome thank you for your help ill post back as soon as i check the things you mentioned

  • Richard Scordino May 11, 2010

    One part of your narration is vague: "the pedal dropped nothing"
    Does the pedal feel as if it's not connected? does the engine start and idle?


  • Raymond Ramirez
    Raymond Ramirez May 11, 2010

    Pull a spark plug from one of the plugs and have someone turn the ignition. see if you are getting spark?

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  • Jeep Master
  • 6,982 Answers

OK that's different...First, you will need to check the battery for 12v. (no testing can be done without proper voltage there) Lights working does not tell you this.
You will need to do a code check before replacing any parts. Without testing there are numerous possible causes and it will cost you $$$ to replace all of them before "hitting" on the right solution. (you just found that out by replacing the pump.) There are other individual component tests you can do using a digital volt/ohmeter.
Offhand, the first place I'd check is the crankshaft position sensor. They are notorious for this kind of failure BUT don't replace it till you test it! post back with any questions and results you get. (in other words, we are not finished yet!!)

Posted on May 19, 2009

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