Question about 1998 GMC Jimmy

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Erratic starting problems

1998 Jummy - VERY well maintained - just started having a problem starting it. Mechanic said computer shows no problem, car will turn over but will not start - almost as though the spark is not happening. It seems to happen when it's humid outside although the weather here in Maine has been cold/warm/wet/dry and I still haven't been able to pinpoint when it actually happens. It won't start today - it's 28degrees and rain/snow mix outside - started yesterday all day - it was 5degrees and sunny. Changed distributor and rotor - to no avail. Any help would be GREATLY appreciated!

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  • mrs_beadsley Dec 31, 2008

    thanks - will try this fix and let you know the outcome.

  • drapdragon24 Jan 28, 2009

    I have the same issue I bought my 98 jimmy at least a year and a half ago and I have trouble on a daily basis and it always starts eventualy. Usualy if I step on the gas and turn the key at the same time. I thought the fuel pump so I had it changed along with the fuel filter still no luck can anyone help me?

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I just had the same problem i thought it was weather related ,too but it was not. you need to replace the ignition module mounted beside the coil and its set in an alumine bracket that has wires that plug into it it cost about $ 72.00 very easy to replace

Posted on Dec 29, 2008

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