nfld96ford

Everything else is fine. Checked the fuses, flasher unit in the fuse panel, wires at the solenoid on RH fender, wires on the LH fender apron. Not sure what else to check. Truck is my dad's 87 F150 5.0 4 spd 4x4.

Just call me Sean

iTrader: (1)

Hazard flasher, multi function switch.

nfld96ford

I'll try another hazard flasher just to see if that's what it is, for what one costs. Where would the multi-function switch be in this truck? I didn't think they had one as the dimmer switch is on the floor in these old ladies.
Thanks

nfld96ford

Hazard flasher checks out, but the turn signal flasher in the fuse panel was bad. So the problem is partly fixed...now on to the brake lights and hazards flashers problem. I see what you're calling the multi-function switch now, it's a combined turn signal/hazard light switch. I hope in the name of all that is holy it's not that, it's too cold to be pulling steering wheels here today!
I'll start by checking for power to the hazard flasher behind the glove compartment, at the stop light switch, the #1 15A fuse and go from there...

nfld96ford

Got it all sorted out. Turns out there was no power to the #1 fuse. I traced the yellow feed wire back towards the solenoid and it was corroded badly on top of the LH fender apron, near the bank of relays and where the wiring harness goes inside the cab through the circular connector chummy-jigger. I cut out the section of bad wire, bridged it with new wire and bam! I have lights like a Christmas Tree again.

Just call me Sean

iTrader: (1)

Cool.