Question about 2000 GMC Jimmy

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Died while driving

For the past week my 2000 gmc jimmy has been dying while I drive it, then will not start back up until hours later. Until the other day, now will not start up period, it turns over but will not fire. We have recently replaced: wires, plugs, rotor button, rotor cap, coil pack, fuel filter, all brand new. fuel pump is about 3 years old, we took a crank sensor module out of a good running chevy blazer and replaced it with the one in the jimmy it didn't help. Also checked the fuel pressure and my boyfriend said it was normal. We literally have no idea what else it could be, which is rare for him because he grew up working on cars.... PLEASE HELP...

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  • kristen savae
    kristen savae Mar 21, 2014

    ***distributor cap.. not rotor.. sorry....


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Posted on Mar 21, 2014

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Are you aware of the stall problem that is caused by a fauty ingintion switch? Contact the dealer with your VIN in hand ask them if you fall under that recall.

Posted on Mar 21, 2014

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Posted on Jan 02, 2017

SOURCE: i have a 1996 gmc z71 that has 248k miles,runs

Ever consider the Fuel Pump
may have failed?
Put a gauge on it and road test

Posted on Feb 10, 2011

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SOURCE: 2000 GMC Jimmy, starts up

you say fuel pressure is good, but what is it? what is the fuel pressure when it stalls out? Spec is 60-66 psi and it wont run if its 55 psi. the fuel pump relay should be good if the pump runs. Make sure the ground for the pump is good , G402 should be on left frame rail. you may have had it off to replace the pump? maybe? it may be time to stop guessing and have a repair shop diagnose it for you. You sure have replaced a lot of good parts.

Posted on Sep 07, 2011

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SOURCE: 2000 gmc jimmy 4x4 p0300. Replaced cap, rotor, wires, plugs, map sensor, checked icm. Nothing has helped

Just a thought,pull the dist.cap and make sure the rotor has
no side to side play ,thinking maybe a bad upper bushing in
the dist.Also,if the EGR valve has carbon and soot built up
on the piston it will make it idle really poor ,but run ok.
Might pull the EGR and clean it with intake cleaner.
Hope this helps.

Posted on Apr 12, 2013

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