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General Site Info => General Discussion => Topic started by: danradio on January 06, 2002, 03:04:00 pm

Title: 87 v20 Electrical problem
Post by: danradio on January 06, 2002, 03:04:00 pm

I am having a problem with the fuel pump system. The truck died, and I have no power at the fuel pump relay. fuses are good. when by-passed the truck runs. Anybody have a really GOOD wiring diagram? Any help? PLEASE!!

Title: wiring
Post by: andyglines on January 07, 2002, 01:06:00 pm

I have the Haynes manual that covers my '82 truck and have found the wiring diagrams in the back to be accurate and invaluable because the PO gutted the wiring.  Try the Haynes book.

Title: Re: 87 v20 Electrical problem
Post by: smokin77 on March 16, 2002, 07:45:00 am

Well, if you bypassed the relay and it started then you probably have a bad relay. Try swaping it with one that you know works.