I have a 1989 F150 XLT Lariat with the 4.9 L6 EFI and dual tanks. My fuel pump relay was having some issues seating in the harness (the relay as well as the EEC relay are new as of a few months ago). I was working on seating it properly and a yellow wire came disconnected clean out of the harness leading to the fuel pump relay. With it disconnected I could not start my truck despite it cranking over. When I went online to find a picture of the harness to see where the wire goes, the wiring is correct leading into the harness. The only way I could get my truck to start was to tie it into the red wire. My question is, where does that yellow wire (that seems to lead to fuse link w according to haynes that I also cannot find) go? There is another yellow wire that leads in, as well as red, tan/lt green and brown. I am an airplane mechanic, and usually do pretty well at wire chasing, but this one stumps me.
have the same problem?
Saturday, January 25th, 2014 AT 3:56 PM