1988 Silverado Fuel Pump Wiring Diagram. Wiring gm fuel pump. If you have a 50l or 57l the key on engine off pressure should be 60 66 psi.
It consists of guidelines and diagrams for different varieties of wiring methods along with other things like lights home windows. Fuel pump wiring diagram 1988 chevy truck. Part 3 testing the fuel pump relay 1997 1999 chevy gmc pick up and suburban.
I found all the info including wiring diagram in a haynes repair manual.
I personally have 1988 gmc truck and had to replace the fuel pump. Part 1 1994 fuel pump circuit tests gm 4 3l 5 0l 7l. I found all the info including wiring diagram in a haynes repair manual. Chevy hot fuel pump module 1988 1999 chevrolet gmc c k gmt400 platform gm trucks com.