Question about 2000 GMC Jimmy

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2000 GMC Jimmy will not start

Fuel pressure regulator changed, ecm changed, fuel pump working, fuses checked. Truck engine will try to turn over, sometimes it will start, but only after trying several times, mostly it won't start. Could problem be in the ignition switch? Please help, very frustrated!

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  • Anonymous Nov 05, 2008

    My 2001 Jimmy had been running well for the last 4 months after I had replaced the fuel pump and filter for the second time. Now just recently, I noticed it was not starting on the first turn but immediatley on the second. The problem went from that to not starting at all in the morning hours. When I give it a crank it wants to start but after several tries it will not. If I prime it will start just fine but only as long as it stays running. It couldn't be the fuel pump this was just replaced not too long ago, right? I've had this vehicle for 3 years now and it's had consistant problems from the start. At this point I don't know where to turn for a solution. I heard that a faulty oil pressure switch will cause the fuel pump not to work properly but that's just what I read. Too much money has been spent trying to maintain this lemon and I am very frustrated. Any solutions or ideas?

  • pat7666 Dec 19, 2008

    new fuel pump,filter,tank,and screen.presure at check point but will not put fuel in engine.where do i go next?

  • Anonymous Dec 30, 2008

    My 2000 GMC Jimmy Won't start unless I pour a little gas into the throttle body then it runs fine

  • klavuhn Jan 01, 2009

    I have 2000 gmc jimmy 4 dr 4.3 my suv is doing the same thing it funs sometimes and will not fire others. it will sit there and turn over but will not start. after i let it sit for several hrs i go back to it and it mostly starts with no problem. other times im driving along and it starts to sputter. i get gas from several different gas co. and i use fuel aditives. but once again my suv will not start. i waited the usual several hrs and no change. i have only had this suv for 10 mths and im feed up with this fireing problem. what is it fuel pump fuel filter plugs injecters what? all of my fuses under the hood r good not sure of any other fuses or cylinoids im lost and cant aford a garage some one pls help

  • Anonymous Mar 15, 2014

    failed cold starts


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2000 jimmy I have im having trouble starting sometimes in the morning it cranks right up and dies later on in the day after it sits it fires right up could it be the ecm going bad

Posted on Nov 30, 2013

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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

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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

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1 Answer

2000 gmc jimmy wont start fuel pump comes on and cuts off but will not start.I have changed the fuel filter and that did not work. Is the pump not building the pressure it needs to start or would my...

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.

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2000 gmc jimmy wont start fuel pump comes on and cuts off but will not start.I have changed the fuel filter and that did not work. Is the pump not building the pressure it needs to start or would my...

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