Fuel pump HELP - The 1947 - Present Chevrolet & GMC Truck Message Board Network

lanconcj · 04-23-2013, 02:09 PM

My truck is starting and running but has no liquid fuel in the filter. Do you think my pump is going out? Is there too much heat and it is vaporizing? With the truck running, the clear plastic filter is "flexing" with no liquid fuel.

Turbo85GMC · 04-23-2013, 02:38 PM

Are you sure that it's empty? When those translucent filters get hazy, full and empty can look pretty much the same without any air bubbles to help see. If it's starting and running, then it's obviously getting fuel.

EDIT: Another thought... If it's a plastic filter, it should be on the suction side of the fuel pump. It it is visibly "flexing", you may have a clog/crimp in the fuel line somewhere between there and the tank.

lanconcj · 04-23-2013, 04:37 PM

False alarm. you were right about the plastic hazed filter. It is full of fuel. I need to quit looking at my motor when I am on night shift and sleep deprived. Last time I locked the keys and the dog in the cab. Thanks for the quick response.

04-23-2013, 02:09 PM	#1
lanconcj Registered User Join Date: May 2011 Location: Anahuac Tx Posts: 111	Fuel pump HELP My truck is starting and running but has no liquid fuel in the filter. Do you think my pump is going out? Is there too much heat and it is vaporizing? With the truck running, the clear plastic filter is "flexing" with no liquid fuel.

04-23-2013, 02:38 PM	#2
Turbo85GMC Registered User Join Date: Apr 2005 Location: Medford, MA Posts: 307	Re: Fuel pump HELP Are you sure that it's empty? When those translucent filters get hazy, full and empty can look pretty much the same without any air bubbles to help see. If it's starting and running, then it's obviously getting fuel. EDIT: Another thought... If it's a plastic filter, it should be on the suction side of the fuel pump. It it is visibly "flexing", you may have a clog/crimp in the fuel line somewhere between there and the tank. __________________ '85 GMC 1500 "Friends don't let friends drive stock!"

04-23-2013, 04:37 PM	#3
lanconcj Registered User Join Date: May 2011 Location: Anahuac Tx Posts: 111	Re: Fuel pump HELP False alarm. you were right about the plastic hazed filter. It is full of fuel. I need to quit looking at my motor when I am on night shift and sleep deprived. Last time I locked the keys and the dog in the cab. Thanks for the quick response.



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.