Question about 1994 GMC Jimmy

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My 94 gmc jimmy wasn't starting up, I thought it was the battery so I jump started it, when it finnaly started up it was idoling rough and oil was coming out of the muffler. I was told it just might need a minor tuneup but I'm not sure what I should do

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Jimmys of this year had a bad problem with the fuel spider on vortec fuel injector hoses underneath the plenum. check your oil level to make sure that fuel isnt draining into oil sump and over filling it. this condition is very dangerous. 1 it can blow the top out of a piston or 2 catch on fire. that is where I would look first.

Posted on Oct 05, 2010

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Posted on Jan 02, 2017

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I have a 1994 GMC Jimmy 4.3 vortec 4x4 automatic, and the transmission started to slip, then the battery died, we got it home and it wouldn't start, so we charged the battery and it ran fine for abou


You may potentially have an serious electrical drain in your car circuits. The drain is slow and continuous, draining your battery charge even if you do a start. Check the cabling and look for load on your battery with a Volt meter to check for any charge drainage. Check this as a precaution before replacing any more parts.

Feb 02, 2015 | 1994 GMC Jimmy

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I have a 1996 GMC Jimmy that was iddling very rough and code said cylinder 2 misfire check engine light was on solid. Replaced all plugs, wires, cap and fuel filter 1st of March 2013. It ran better for a...


Lets start at the beginning. Did anyone check fuel pressure before and after replacing the pump ?
Has anyone checked the fuel pressure regulator and the injector spider ? The 4.3w engine uses a spider with one injector that supplies all 6 cylinders. And it runs at 65psi or more.

Aug 05, 2013 | 1996 GMC Jimmy

1 Answer

1996 GMC jimmy rough idel and dieing when driving.


i have seen many strange things happen with the distrib cabs on these

Aug 22, 2012 | 1996 GMC Jimmy

1 Answer

My 2000 GMC Jimmy had brand new battery installed roughly a week ago. Attempted to run errands last evening and whole vehicle was dead: unable to use key fob to unlock doors, engine didn't even attempt to...


you should check the voltage on your batttery when the car is running. If it reads about 13.5 to 14 volts, your alternator is doing it's job. If it's less, replace the alternator. If the alternator is ok, you have a power drain somewhere, you will need a proffesional to look at it.

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1 Answer

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try the fuel filter.it will allow it to run but sometimes causes vehicle to stall or run rough

Mar 15, 2009 | 1997 GMC Jimmy

1 Answer

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The problem was corrosion on the contact points in the distribitor cap. I replaced the cap & rotor.

Jan 10, 2009 | 2001 GMC Jimmy

2 Answers

Wont start in rain


Jimmy fx:

Since it is moisture related I would suspect the ignition system. My F150 pickup started running poorly and on a hunch I replace the plug wires, the distributor cap and plugs. It made all the difference in the world

Good luck Loringh

Nov 15, 2008 | 2001 GMC Jimmy

1 Answer

Trouble starting


Sounds like the head gaskets are leaking.

Nov 09, 2008 | 1999 GMC Jimmy

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