Question about 1996 GMC Jimmy

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Truck has hard time starting in morning.

For a few days, my 1994 GMC Jimmy has had a hard time starting. But when I turn it on in the afternoon, after work, it is fine. What may be the cause?

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What is the weather like when it does this?

Posted on Nov 09, 2008

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Where is the ignition timing wire on a 1994 gmc jimmy


Its on the dist. on chev's it the brown wire and you can just unplug it along with the other wire on the harness.

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Car cranks and starts after a few tries, if I turn it off and start it right away it starts perfectly. The exaust pipe smells like gas andthe service engine light comes on but shuts off. The car is a


Sounds like you may have a fuel leak, somewhere!
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If the exhaust smells like fuel, I would almost bet it's leaking into the engine, and would have to guess that one or more of your fuel injectors are "seeping".

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1994 GMC Jimmy hard to start and runs rough when first started


i think if you checked the sparking plugs and map sensors then check your distributer its maybe not delivering the current nedded to perform the spark to some of the cylinders

May 30, 2009 | 1994 GMC Jimmy

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Hard starts in the morning even though replaced most parts


Check the power to the cold start injector. (it's only going to have fire for a few sec. after the key is turned on). If the fire is good, replace the cold start injector. This injector is activated for a few seconds when the engen temp is low to add a little fuel lower down in the intake and closer to the pistons.

May 20, 2009 | 1994 GMC Jimmy

1 Answer

1994 GMC Jimmy hard to start and runs rough when first started


did you do a fuel pressure test? if you havent do it its cheep an at least you can elimanate that. if thats not an issue, then there is only two other things crank sensor, and if there is one cam sensor.

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Hard start when cold/first start in morning


The pressure relief valve is in the spider fuel injector not the fuel pump. We have had our 94 gmc jimmy for 4 years & have had to replace the fuel injector 4 times which cost right at $500 each time for the part. Yes the spider fuel injector cost averages around $500.

Nov 16, 2008 | 1994 GMC Jimmy

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2000 GMC Jimmy will not start


The oil presure switch does have some bearing on the problem but my suggestion is to change the coil. I had a the same problem with an astro van. I changed everything that you have described and it fixed the problem just for a little while and then all of a sudden did it again. I changed the coild and the cold start swithch and never had the problem again.

Oct 27, 2008 | 2000 GMC Jimmy

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