Question about 1999 GMC Jimmy

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2000 GMC Jimmy will not start

Starts great in the morning, Drive it for a short period of time(10 minutes) and shut it off. Let sit for 2 min. and will not restart. Engine turns over, getting spark and i can see fuel when i depress test port.Let set overnight and it will start up first try. Please, this is driving me crazy.

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  • GMC Master
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First of all, check your air filter. Then your engine ground connection. Then all the connections in your ignition system. If none of that gets it, try you could have a faulty idle contol system. Change sensor. Then coil pack if you still don't have it figured. Good luck. I hope this helps.

Posted on May 21, 2009

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I have a 1999 GMC jimmy 4 door 4x4 v6 4.3 ltr automatic with a starting problem, it starts with starting fluid and runs great afterwards can drive all over God's creation afterwards, but day a


Sounds like you are loosing fuel pressure overnight. Since it takes 70+ psi to start and run, if you have zero pressure in the morning, it would take a long time of cranking to get the pressure back up.
If it is low or no pressure, the problem could be a faulty check valve in the fuel pump.

Dec 01, 2014 | 1999 GMC Jimmy

1 Answer

I have 2000 gmc jimmy it wont start sometimes it has me clueless


It could be the ECU,but I am gonna put my money on the fuel pump and say its a fuel issue. Have you changed the fuel filter? the most common problem with GMC's is the air flow mass meter. Spray it with some air flow mass meter cleaner and see if that helps.

Dec 01, 2013 | 2000 GMC Jimmy

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Why would my jimmy cut off sometimes while driveing and than run fine after sitting for a few minutes


im not sure but my jimmy will run great then i go to the store and come back out it wont start i wait 15 min and it starts right up , my problem was security sensor , see if the security light comes on when it happens if it does i would look into that

Jan 04, 2013 | 1998 GMC Jimmy

1 Answer

2000 gmc jimmy starts in AM fine won't start after sitting in sun all day


Can you jumper the fuel pump and make it start and continue to run ?
Have you checked to see if you are getting spark when it won't start ?
Could be a relay or coil, ignition module, or other component.

Aug 08, 2012 | 2000 GMC Jimmy

1 Answer

I HAVE CHANGED THE PUMP TWICE BUT THE PROBLEM CONTINUES


renew the fuel pump the windings are shorting out causing it to overheat

Jul 07, 2010 | 2000 GMC Jimmy

1 Answer

Car will not start agian for long periods of time after being dri


CHECK TO SEE IF SECURITY LIGHT STAYS ON AFTER YOU TURN KEY TO RUN POSITION. IT WILL STAY ON A FEW SECONDS NORMALLY THEN GO OUT. IF LIGHT STAYS ON SECURITY SYSTEM HAS A FAULT AND WILL DISABLE CRANKING AND/OR FUEL INJECTION

Aug 31, 2009 | 2000 GMC Jimmy

1 Answer

Will not start after running, turning over getting fuel and fire


Sometimes when a starter is starting to go bad they will do this.  As they heat up they won't spin fast enough to get the car started.  Take it to an auto parts store and have them test it several times to recreate it being hot and they should be able to let you know if it is good or not.  Good luck and let me know if you have any other questions.  Thanks for an honest rating and for using FixYa!

May 21, 2009 | 2000 GMC Jimmy

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