Question about 1991 Chevrolet C1500
The wiring harness for the fuel pump has three wires to it, how many wires should show voltage when the key is in the on position
Hello, Only 2 wires show be hot when fuel pump power is supplied. I think that the gray wire is the power side so ck that wire to ground. Also, fuel pump power is supplied from your oil pressure switch and the fuel pump relay only supplies power for a few seconds until the truck is started. Keep in mind that the fuel pump will only run a few seconds by just turning the switch on. If you want the pump to stay on without the motor running , you will have to by-pass the fuel pump relay.
I hope this will help.
Posted on Feb 06, 2009
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Dec 29, 2016 | 1998 Ford Ranger
Jan 22, 2016 | Cars & Trucks
Feb 14, 2015 | 2003 Toyota Corolla
May 17, 2011 | 2000 Chevrolet Silverado 1500
Oct 11, 2010 | 1991 Ford F150
Oct 01, 2010 | 2001 Chevrolet Silverado 1500
Jul 15, 2010 | Chevrolet Caprice Classic Cars & Trucks
Mar 31, 2010 | 2002 Chevrolet Silverado 1500
Jan 26, 2010 | 1997 GMC Jimmy
Nov 28, 2009 | 2001 Chevrolet Silverado 1500
Mar 14, 2017 | 1991 Chevrolet C1500
278 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: