electric fuel pump issues - The 1947 - Present Chevrolet & GMC Truck Message Board Network

nascarmikeb · 08-23-2012, 10:08 AM

I have an 87 GMC
Recently pulled the factory 305 TBI, Went back with 350, w/ carb.
I was hoping to use the electric fuel pump, but when I turned key switch on the pump wouldn't work. I am sure it is because I have an open circuit somewhere on my old wiring harness. I did not remove the harness from the truck.
I am currently using a mech. pump, with the existing fuel lines. Basically sucking through the intank fuel pump. I know eventually this will wear out the mech. pump.
Any ideas of what I need to do to get the electric pump working again.

I will eventually be pulling the factory wiring harness.

Mike

08-23-2012, 10:08 AM	#1
nascarmikeb Registered User Join Date: Feb 2011 Location: Lake Charles, LA Posts: 61	electric fuel pump issues I have an 87 GMC Recently pulled the factory 305 TBI, Went back with 350, w/ carb. I was hoping to use the electric fuel pump, but when I turned key switch on the pump wouldn't work. I am sure it is because I have an open circuit somewhere on my old wiring harness. I did not remove the harness from the truck. I am currently using a mech. pump, with the existing fuel lines. Basically sucking through the intank fuel pump. I know eventually this will wear out the mech. pump. Any ideas of what I need to do to get the electric pump working again. I will eventually be pulling the factory wiring harness. Mike



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