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Old 03-30-2018, 09:51 AM   #1
MASONGMC
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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?
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Old 04-14-2018, 01:03 PM   #2
Bladeboy1998
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Re: My 2005 GMC is loosing fuel pressure with no leaks anywhere

Quote:
Originally Posted by MASONGMC View Post
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
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Old 04-16-2018, 03:58 PM   #3
gearheadperkins
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Re: My 2005 GMC is loosing fuel pressure with no leaks anywhere

x2 on the Fuel pressure regulator..
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Old 04-21-2018, 07:41 AM   #4
homemade87
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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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