Question about 2001 GMC Jimmy

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Jimmy starts but doesn't stay running

Replaced the fuel pump,fuel filter, spider fuel injection

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Could be a fuel starvation problem. Check the fuel pressure - if it drops below 50 psi, the engine will stop. If that is the case, the fuel regulator is probably faulty or not installed correctly (leaking). Another check would be for an intermittent in the fuel pump connector or a faulty fuse/relay as well.

Posted on May 18, 2014


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SOURCE: 1995 gmc Jimmy

timing is off try the timming senser

Posted on Oct 11, 2008

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SOURCE: My 1995 GMC jimmy 4x4 just stopped running.

Had same problem. replaced spark plugs and egr vavle. Runs like a top and was cheaper than fuel pump and filter.

Posted on Jul 08, 2009

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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

SOURCE: 1997 GMC Sierra 5.7 Vortec, replaced the fuel

10psi is, as I'm sure you know, about 48psi short of what you need to get it running. Did you verify you're getting a full 12 volts at the fuel pump connector? Check the ground wire also, ohm it out to chassis ground, shouldn't be more then a few ohms. Verify it's making a good connection and the terminals are clean and tight. High resistance in the wiring or a connector in the circuit could cause the fuel pump to not output the right amount of pressure.
Did you replace the fuel pump with an aftermarket unit or an oem part?

Posted on Nov 01, 2009

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SOURCE: 2000 gmc jimmy shut off while driving, replaced

Replace the fuel filter first. When you turn the key on, the fuel pump should run for a few moments, then turn off. If it keeps running, then replace the pump as well. Suggest having the fuel system pressure checked at the engine itself. Hope this helps!

Posted on Sep 29, 2010

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Hi Palmer Jay, Take the vehicle for a diagnostic scan and have the fuel pump pressure checked at the same time. It sounds to me as if the pump may be defective and not giving the correct pressure. Also have them replace the fuel filter. Regards John

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Check your starter and check your connections to make sure they are clean and tight. The low fuel pressure won't cause a no crank. Too low could cause a no start but not a no crank. I've had starters be bad right out of the box. But if that starter motor isn't turning either the starter motor is bad or the solenoid attached or the wiring to it is at fault.

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95 Gmc Jimmy once in a while won't start

The fuel pump relay is in the glove box. There is a panel in the back that say relay on it and it's in there, the middle relay from the three is the fuel pump relay. The other thing to is change your fuel filter, that is on the inside frame rail under the driver just on front of the transmission cross frame. Also check the fuel pressure at the shredder valve,you should have 60 to 65 PSI in the system to have the spider injection system you work. Recap: replace the fuel filter first since that's the cheapest and easiest thing to do, check the fuel pressure at the shredder valve and you can do that at Auto Zone and they can give you the step by step instruction on how to do it if your nor sure how to. Take about 5 min to do. If pressure is low,then your fuel pump may be getting weak and needs to be replaced soon. At worst, it's going to be your Fuel injection system since they have a bad history of the poppet valve going bad, but we deal with that last. Good luck and keep me post. Be glad to help.

Jun 07, 2009 | 1991 GMC S-15 Jimmy

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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

1 Answer

93 jimmy

Could be either fuel pump or fuel injection system (spiders).. especially if neither have been replaced yet.. also, suggest you have computer checked for possible malfuction. Good luck

Aug 25, 2008 | 1993 GMC Jimmy

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