Question about 2000 GMC Jimmy

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2000 Chevy Silverado 4wd.Engine fires but will not stay running. It does this ocaisionally. start fine, runs fine ,. next time you go to start,it won't stay running. It just fires and quits.

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Hi, Sounds like your fuel pump is on it way out. If you have over 100,000 miles, change it.

Posted on Aug 25, 2010

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I have a 2000 Chevy Silverado 2500..the truck was running fine then we turned it off and when we turned it back on again the gauges all went haywire and the vehicle would not start again we jump started it...


Bad battery or alternator. Jump it again and with it running, pull off the positive battery cable. If it dies, its a bad alternator. If it stays running, its a bad battery.

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1 Answer

2000 silverado problems


Common problem on that model chevy. Check the fuel regulator to make sure is not leaking. Allow it to run for a few minutes and shut it off then pull the vacuum line off of it. If there is fuel in there that it is leaking. If that checks out it will most likely be the fuel pump. If you cycle the key a few time then it starts fine it will be the pump

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1 Answer

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Try cleaning the throttle body and the mass air flow sensor.Does your check engine light come on?

Nov 25, 2009 | 2000 Chevrolet Silverado

1 Answer

OXYGEN SENSOR OR FUEL PUMP?


Change the fuel filter, check the fuel pressure, then pull the tank and replace the pump if the pressure is below spec.

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I'd disconnect my battery, and start unplugging every sensor connector, computer connector etc that I could find and spray them with contact cleaner, blow them off if you have compressor, add a little di-electric grease and put them all back together & try that first. You never know, you just might cure it, and materials are cheap.

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Chevy Trucks, Blazers, S10 pickup and the like will vapor lock ecspecially the 2000 models. Do not tighten the gas cap past 1 click. There is a tube that runs from the top of the tank down and this gets hot and collapses or burns in half. We just bought a reinforced rubber tube cut it to lengh and use it instead of part and it's worked grat for 2 years so far.

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