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C15_Sierra · 03-26-2012, 05:43 PM

Haha I wish it was good work...broke down on the way home from work (on the highway, no less), and so far all I know is there's a short somewhere on my engine harness, which keeps blowing one of the fuses. I have to go back and re-trace my wiring harness and see what's going on. I also may bump up my harness redux project (just bought a 5.3 harness on evilBay last week) so I can avoid this again.

Edit: Removed the fuel pump relay and the ECM isn't blowing its fuse, so it's the fuel pump

Lesson learned - wire the fuel pump in its own fuse for my "round 2" harness

03-26-2012, 05:43 PM	#10
C15_Sierra Registered User Join Date: Apr 2011 Location: Hartford CT Posts: 223	Re: My 1980 Sierra LWB build Haha I wish it was good work...broke down on the way home from work (on the highway, no less), and so far all I know is there's a short somewhere on my engine harness, which keeps blowing one of the fuses. I have to go back and re-trace my wiring harness and see what's going on. I also may bump up my harness redux project (just bought a 5.3 harness on evilBay last week) so I can avoid this again. Edit: Removed the fuel pump relay and the ECM isn't blowing its fuse, so it's the fuel pump Lesson learned - wire the fuel pump in its own fuse for my "round 2" harness __________________ -Steve 1980 GMC C15 Sierra LWB Dark Carmine Red/Carmine Int Was: 250/3spd (1980-88), then a 305/TH350 (1988-2011) Now: 5.3/4L60E, 2.73 12-bolt open rear Last edited by C15_Sierra; 03-27-2012 at 01:38 PM.