starves for fuel when warmed up - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Seatown-gmc · 12-05-2010, 10:29 PM

I have a 2wd 1970 GMC pick up with a factory 396. The truck starts up everytime and idles fine but when it warms up and im driving the truck it sputters and pops like it is running out of gas. I thought it was the fuel pump so I changed it. Not the problem. so I put a clear filter on the fuel line so i could watch the fuel and see what it was doing. when the motor is cold the filter is full but when the motor heats up the filter gets bone dry the motor must be runnng on fumes only but it doesnt die. The fuel intermitently skirts into the filter after it is warm but not what it should be. My truck does have headers do you think this is my problem?

12-05-2010, 10:29 PM	#1
Seatown-gmc Registered User Join Date: May 2010 Location: Seattle Posts: 12	starves for fuel when warmed up I have a 2wd 1970 GMC pick up with a factory 396. The truck starts up everytime and idles fine but when it warms up and im driving the truck it sputters and pops like it is running out of gas. I thought it was the fuel pump so I changed it. Not the problem. so I put a clear filter on the fuel line so i could watch the fuel and see what it was doing. when the motor is cold the filter is full but when the motor heats up the filter gets bone dry the motor must be runnng on fumes only but it doesnt die. The fuel intermitently skirts into the filter after it is warm but not what it should be. My truck does have headers do you think this is my problem? Last edited by Seatown-gmc; 12-05-2010 at 10:32 PM.



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.