Question about 2003 Jeep Grand Cherokee

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199 jeep grand cher 4.0 engine cut off while driving,sometime it will not start. some time it will start up right away some time it may not start untin the next day it turn over very well good battery and starter.

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  • daustin826 Dec 17, 2008

    i accidentially unpluged a vaccum hose coming from the intake going to a canister it started up then as i was driving to the auto shop it cut off after trying to crank is but it did not i unpluged to vac hose then it started up

  • daustin826 Dec 17, 2008

    i accidentially unpluged a vaccum hose coming from the intake going to a canister it started up then as i was driving to the auto shop it cut off after trying to crank is but it did not i unpluged to vac hose then it started up

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  • 599 Answers

Sounds fuel or electrical primary side related.... check fuel pressure...if ok then go to trigger and be sure it is firing when cranking...good luck

Posted on Dec 16, 2008

  • milespeed Dec 17, 2008

    so the vacuum canister may have a leak..leaching needed vacuum to make intake system happy....your getting close now ! good luck

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ebraunston@yahoo.com

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