Question about 2000 GMC Sierra

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I have a 2000 Sierra 5.3L. It is hard to start I think a gas problem. Is there a problem with fuel pumps? I can turn the key on and wait about 30 sec. and it will start right up. Or try to start about 3 times and it will start right up. Can you help me?

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  • dclayton935 Sep 16, 2010

    Where is the regulator located on the truck?

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Check fuel pressure regulator, if bad, will take time to built fuel pressure before it will start.

Posted on Sep 16, 2010

Testimonial: "very good information"

  • Alexander Mimun
    Alexander Mimun Sep 16, 2010

    It will be at the end of the fuel rail, don't forget to rate me,thanks.

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Posted on Jan 02, 2017

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  • 5 Answers

SOURCE: Hard Start. It is 32F, Block heater plugged in,

sounds to me like your check valve in fuel line is not working. If you have the original lift pump it located in there.

Posted on Jan 04, 2010

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2 Answers

No battery problem either


My guess is that after it ran out of gas, the key was in the forward position for a while and you unknowingly interrupted the antitheft system. Try to reset it.

RELEARN PROCEDURE:
Turn the key on, with the engine OFF.
Try to start the engine, then release the key to ON, Engine will not start.
Watch the security telltale, after about 10 mins, it will turn OFF.
Turn OFF the ignition, and wait 5 seconds.
Repeat steps 1 through 4 two more times for a total of 3 cycles/30 minutes. You must turn the ignition OFF for 30 seconds before attempting to start the vehicle after the 3 cycles. Then start the engine .


Do It Yourself GM Security bypass
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Oct 10, 2016 | 2000 Chevrolet Cavalier

1 Answer

I have a 2008 GMC Sierra 1500 4 wheel drive with a 4.8 motor I have no power to my fuel pump fuse.


Chevy Silverado and GMC Sierra Fuel Pump/Fuel System - Edmunds.com

forums.edmunds.com > Chevrolet > Chevrolet Silverado 1500

Mar 20, 2011 - 30 posts - ‎19 authors
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1 Answer

2000 gmc Sierra starts but stalls


Check the fuel pressure while its running. It sounds like the fuel filter is stopping up. Fuel filter should be changed every 50 thousand miles or so. If the filter is bad it won't be long until the fuel pump has to be replaced (located inside the fuel tank)! It's a lot easier to replace the filter before the pump is damaged!

Jun 10, 2014 | 2000 GMC Sierra

1 Answer

My 95 gmc wont start when hot


check the fuel pressure regulator for leaks it may divert the fuel when warmed up,check all vacuum hoses for cracks if you think it's bad change it. turn key on and wait 30 sec.then crank and see what happens,fuel pump may be getting hot.if you can check fuel pressure at the rail for at least 35 psi.you can do this by removing the schrader valve and attach a hose with gauge.you should be able to hear the fuel pump for a few sec.when you turn the key on. try this when cold then hot see if you notice a differance.it seems to relate to a fuel problem.hope this helps,dave

Apr 13, 2014 | 1995 GMC Sierra

1 Answer

My son has a 2000 gmc sierra.. the truck was running often low on gas and when he recently turned the truck off whenever you attempt to start the truck when u turn the key over it blows the ecm-b fuse. ...


That fuse powers several things, including the fuel pump relay.
You would need to disconnect the harness at the pump and see if the fuse still blows.

Sep 25, 2012 | 2000 GMC Sierra

2 Answers

2000 gmc sierra 6cyl, my husband started our truck drove up the road to the neighbors he left it running to warm up when he came out it had died and wont restart. it is getting fire and when you try...


It is gas related because it started. Check the fuel pump, pump fuse, relay, or reset button. Check your fuel filter. Make sure your gas lines are good and check your fuel injectors. Your problem is with the fuel, so you shouldn't have to worry about anything else, just the fuel components. Your engine is not getting gas. Check all these things and you will find your problem.

Mar 02, 2011 | 2000 GMC Sierra

1 Answer

Fuel pressure intermittently drops causing sputter and die.


check for 12v constant at your fuel pump if you are not getting that replace your relay.
if you are getting 12 volts at your fuel pump the fuel pump is possible to run tuel it gets warm then shut down to a lower rpm I would then replace the fuel pump

Oct 10, 2009 | 1994 Dodge Ram

1 Answer

2000 gmc sierra fuel pump


Orig factory electric fuel pumps turn off seconds after loss off oil pressure

Mar 28, 2009 | 2000 GMC Sierra

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2000 GMC 2500 FUEL PUMP?


if it was me I would check out the fuel pump relay first and then I would check the fuse for the sending unit and also here is a number of a place that sells only GM parts Schram auto and truck parts 1-800-292-1032

Feb 23, 2009 | 2000 GMC Sierra C/K3500

1 Answer

98 GMC starting problems


Take off your gas cap and have someone stand there with thier ear at the hole, (no smoking), turn the key to on just before start and they should hear the fuel pump humming. if they dont then try to start. if it doesnt start turn key off and at that instant the pump should be heard again. What i think is happening is your pump is not energizing . Its supposed to energize when turning your key on and off. This can be caused by a bad fuel pump or pump relay switch. Hope this helps. please rate me

Oct 02, 2008 | 2002 GMC Sierra C/K1500

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