WIRING NIGHTMARE!
Laughing Gas
Joined: Nov 2011
Posts: 1,033
Likes: 11
From: Wausau, WI
If it's the truck in your avatar, make sure both taillights are well grounded. I had a similar problem with mine when I first got it and that was the problem.
Also, if the radio is poorly wired, get that unhooked or wired up the correct way. I knew a person that could dim her parking lights with the dash light dimmer and turn signals were really goofy. I rewired the aftermarket radio and found it was a bad ground for the radio causing all the problems. Weird!!
Also, if the radio is poorly wired, get that unhooked or wired up the correct way. I knew a person that could dim her parking lights with the dash light dimmer and turn signals were really goofy. I rewired the aftermarket radio and found it was a bad ground for the radio causing all the problems. Weird!!
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Laughing Gas
Joined: Dec 2007
Posts: 848
Likes: 1
From: Bethel Park, Pa
well i got a new radio and i got that problem fixed, there was some bad connectors in the power wire, and it is grounded to the metal frame for the dash
as for the taillights, there is no ground wire, i think im going to buy a new set of 4 wire taillights and hope that fixes the problem
as for the taillights, there is no ground wire, i think im going to buy a new set of 4 wire taillights and hope that fixes the problem
Junior User
Joined: Aug 2010
Posts: 94
Likes: 0
From: SE Michigan
Thanks to everyone on this forum i recently fixed my wiring problem. My 1980 F350 400 cid had one of those trailer brake controllers that i had removed a couple years ago. Everytime it rained heavily or got cold the darned tail lights would stay on. I changed the head light switch, i tore the dash apart looking for bare wires, checked all the tail and marker light's grounds, replaced the ignition switch, i removed the steering wheel, i unplugged the turn signal switch..nothing worked. i finally found a hot-wire going from the starter solinoid to a resistor on the firewall then under the truck, while removing that i found the old 5-wire-banded-together harness for the trailer lights/brakes. It had been cut off and was appearently shorting out when wet or cold. It was spliced into the original wiring harness under the cab with those slipcing clips where you lay a wire along side the wire you want to splice into and clip them together. There were 5 of those. I removed them all, coated the old wires with silicone because of the holes left by the clips and taped it all up. Viola, everything works!
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Laughing Gas
Joined: Dec 2007
Posts: 848
Likes: 1
From: Bethel Park, Pa
thats great to hear! i still havent gotten mine fixed, and its getting colder, and without a garage it kinda sucks haha, i recently had a fire under my dash from some faulty wiring of extra gauges, so that was a little more important haha
Post Fiend
Joined: Jul 2004
Posts: 8,786
Likes: 28
From: Northern California
To answer this question, Ford factory radios ground through it's rear mounting bracket to dash metal.
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Laughing Gas
Joined: Dec 2007
Posts: 848
Likes: 1
From: Bethel Park, Pa
so this problem is still driving me nuts
i replaced the drivers side parking light socket, both headlights, headlight switch, and the rear taillights (upgraded to LED)
i am going to put the new drivers side passenger socket in within the next few days and hopefully that will help
i replaced the drivers side parking light socket, both headlights, headlight switch, and the rear taillights (upgraded to LED)
i am going to put the new drivers side passenger socket in within the next few days and hopefully that will help
Moderator
Joined: Jan 2001
Posts: 56,980
Likes: 2,735
From: Virginia
Those rear LED taillights are going to give you problems unless you are using a electronic flasher, or you have added load resistors to the new LED lights.
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Post Fiend
Joined: Jul 2004
Posts: 8,786
Likes: 28
From: Northern California
Yes the old thermal type flashers need enough resistance to make the flasher cycle.
Why the flasher will not work with one bulb burned out even using traditional incandecents.
Upgrade to an electronic flasher if using LEDs.
Why the flasher will not work with one bulb burned out even using traditional incandecents.
Upgrade to an electronic flasher if using LEDs.
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Laughing Gas
Joined: Dec 2007
Posts: 848
Likes: 1
From: Bethel Park, Pa
alright well i have checked all grounds and all connections no changes, and i had the right turn signal on (the one that doesnt flash with the headlights on) and when i shut the truck off it starts to flash i am baffled
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