First I want to say hi to everyone since I am a newbee.
I am the original owner of this 2004 f150 4x4 crew cab lariat. My problem started with the side mirrors no longer working. I went to the fuse and it had not blown. NOT GOOD, I am thinking.
Later my driver side seat quit. I then tried to adjust my pedals and they also had quit. Again I checked the appropriate fuses and they were again GOOD. WOW!!!!!
I found the factory service electrical wiring manual on E-bay and ordered one. Its on the way. Last night I went to this web site and found out I was not the only cowboy with this problem.
Sure enough, thanks to some members on here it led me to the passenger side. I removed the door floor plate and side kick plates that cover the fuse box.
I was surprise to see water in the trench where the wiring laid. Sure enough there were those three wires, two on one side completely separated from the other. Both ends had a cloth type black tape. What I would use as friction tape. Looking at my situation this connection which was on the very bottom of the wiring had been soaking under water. For how long who knows. The connection had corroded apart. Looking at the two ends both had green goop on them. The only reason why the fuse did not open is because that wire was just high enough not to contact the water and create a direct short which would have blow the fuse after it separated.
So now I have hopefully found the problem. However I have a water intrusion problem as well.
After removing about 16 oz of water, well maybe slightly less, but not much less, I repaired the connection by cutting back enough of the wire to get past the corrosion, stripping back insulation, installing heat shrink and soldering the connection to a jumper to get it back to its original length. No cold solder connections here. Finally using the hair blower shrunk tubing around connection.
FINAL TEST SAT!!!!
I later did the water test on my windshield with my hose and sure enough the leak showed up coming down on the ride side firewall. Once I get this fixed my water solution should be taken care of.
Just want to say I would have never know about this leak if it had not been for the electrical problems.
Again thanks for all the info and hope I can help others as much as I have been helped here.
Many thanks SP357!!!!!