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MASONGMC

03-30-2018 09:51 AM

My 2005 GMC is loosing fuel pressure with no leaks anywhere

I need some help my 2005 GMC Sierra 1500hd 6.0 is loosing fuel pressure when it sit over nite .Have anybody have that problem?

Bladeboy1998

04-14-2018 01:03 PM

Re: My 2005 GMC is loosing fuel pressure with no leaks anywhere

Quote:

Originally Posted by MASONGMC (Post 8225771)

I need some help my 2005 GMC Sierra 1500hd 6.0 is loosing fuel pressure when it sit over nite .Have anybody have that problem?

Could be leaking from the sending unit in the tank and back into the tank, or you could have an injector that is seeping slightly. Or even a bad fuel pressure regulator

gearheadperkins

04-16-2018 03:58 PM

Re: My 2005 GMC is loosing fuel pressure with no leaks anywhere

x2 on the Fuel pressure regulator..

homemade87

04-21-2018 07:41 AM

Re: My 2005 GMC is loosing fuel pressure with no leaks anywhere

What are your symptoms . Why do you think this is a problem . If it drops in a minute or two , there may be something wrong . If you have a pressure gauge checking let it set for a 5 min and see what it does . Most systems will not hold 100% pressure over night . It will loose some and usually is not a problem . What is yours doing .

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