Question about 2000 GMC Jimmy

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1999 gmc jimmy starts than dies what is the problem?

Changed alternator, fuel pump, cleaned all lines, getting frustrated

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Posted on Jan 02, 2017

alicantecoli
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SOURCE: 1999 GMC Jimmy won't start.

firstly where is fuel pump relay as i have never seen a GMC jimmy sorry about that but have you ever seen a foden ?? well the first thing is to check the fuse,if fuse is ok which can be checked by looking at it as its transparent or a piece of wire with a light bulb .across the battery.to find the relay is easy if you dont know where it is,When this piece of americana decides to work just turn ignition on and listen for the click of relay ,then when it doesnt start listen for click again or rather an absence of a click,sounds more like a dodgy pump in the tank or the connections going to it.when it wont start try thumping the fuel tank with the ignition on and if it is a sticky pump you might hear it start then at least you will know where the fault is.Another fault that i have come across with relays is that where the relay is passing a heavy load then its possibe for the contacts to burn inside the relay.When this happens then if it is possible to seperate the relay cover and clean the contacts with a points file (remember them ) or a piece of fine emery paper if the cover breaks taking it apart then use a bit of black insulating tape to repair the cover.Thats assuming the pump is in the tank and not bolted to the chassis near the fuel tank but that design with external pump i havent seen on a europeon car for nearly 20yrs .

Posted on Nov 05, 2008

  • 2 Answers

SOURCE: 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.

Posted on Nov 29, 2008

  • 4 Answers

SOURCE: 1999 GMC Jimmy Startup problem

My friend had the same type of symptoms, there is a spider wed style od hoses under the intake that delivers fuel to all the cylinders that he found to have hairline cracks in it. Found out this is a know problem especially in the 4.3L Vortex

Posted on Jan 01, 2009

66 chrgr
  • 1011 Answers

SOURCE: 2000 gmc jimmy wont start fuel pump comes on and cuts off...

the fuel pressure if leaking could cause this the regulator is located under the intake plenum but you should smell gas .if you dont then most likely the pump is bad ,the pump will come on for 2 seconds when the key is on then go off it will not stay on with just the key on only when you crank it will it .so have your fuel pressure checked with a gauge.

Posted on Mar 22, 2009

  • 1 Answer

SOURCE: 2000 GMC Jimmy won't start

i had the same problem and replaced the fuel pressure regulator. Cost about $45 at advance auto store or about $90 at napa auto stores. Once i replace that my truck started right yup and runs like a champ

Posted on Jul 13, 2009

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I Just put a brand new engine in my 1999 Gmc Suburban. I was driving down the road to brake it in and test it out, but i broke down instead. The car died and the check engine light, the check gage light,...


SOUND LIKE ALTERNATOR WENT OUT.CHECK ALTERNATOR WIRES MAKE SURE NONE IS LOOSE OR BROKEN .AND MAKE SURE DRIVE BELT INTACT.AND CHECK ALTERNATOR FUSE.

Jun 28, 2010 | 1999 GMC Jimmy

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I have a 1999 Gmc Jimmy and it wont start. It turns over you spray some starting fluid stuff in it and it fires up but then dies. We changed the throttle body sensor the crank sensor. Can anyone tell us...


Sounds like a bad fuel pump. If you turn the key on and don't hear it run, it is the most likely cause. You may be able to smack the tank and get it working again, but will need to be replaced. If not, look for power and ground at the pump connector when key is on.

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Runs fine then slowly dies while in park or while driving.


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Dec 05, 2008 | 2000 GMC Jimmy

2 Answers

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

2 Answers

1999 GMC Jimmy Startup problem


My friend had the same type of symptoms, there is a spider wed style od hoses under the intake that delivers fuel to all the cylinders that he found to have hairline cracks in it. Found out this is a know problem especially in the 4.3L Vortex

Jun 08, 2008 | 1999 GMC Jimmy

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