83 F250 Tailight Issues!
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83 F250 Tailight Issues!
I have an 83 F250 Flatbed, that I bought a little less than a month ago, and changed out the the tail lights, but I am having issues with it working correctly. The diagrams I have seen say that there should be 4 wires running from the engine compartment, but only have 3, which are the "Lt.Grn/Orn", "Brn" and believe the "Orn/Lt.Blu" but suppose to be I think its a "Blk/Pnk"?. I also checked the fuse box, but where the fuse for the taillights, is the one that looks like it blew. Mainly right now, my issue is that only one turns on when the lights are on, brake light only works with headlights/taillights shut off, and also the blinker only works when headlights off. I know I kinda ran on but if anyone can help, I would really appreciate it! Thanks In Advance! Im just getting frustrated!
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From: Virginia
The lightgreen/orange wire is the left turn/stop wire. The Orange/lightblue is the right turn/stop wire. The brown is the running light wire. The missing black/pink is for the back-up lights.
1st thing you need to do is figure out the higher wattage(brighter) filament wire on your taillights. You should have 2 or 3 wires from each taillight housing. One will be the brighter filament, the other will be the dimmer filament, and if you have another, it will be ground.
Take a battery charger or some other 12 power source, and hook it to the light and figure out which is the bright filament. Your left turn/stop colored wire from the truck will go to this wire. Do the same for the right turn/stop on the pass side of the truck.
The other wire will be the dim filament in each light. These are running lights. You will need to run the brown wire back, and tie the brown wire to both rear lights, and also the license plate lights if you have any, and any other marker lights. This single brown wire feeds all these lights.
Another important part is the ground. This is the reason nothing will work when you turn the headlights on, you do not have a good ground to the lights. Figure out how they are grounded. If it's a wire, make sure the paint is scraped away, and bolt it to the bed if it's grounded, or bolt it to the frame. Or you can bolt it to the bed and then make another jumper wire somewhere and ground the bed to the frame. If the lights are grounded through the light mounting bolts, make sure the paint is scraped away, and this also may require a jumper wire be bolted to the frame and the bed to ground the bed.
1st thing you need to do is figure out the higher wattage(brighter) filament wire on your taillights. You should have 2 or 3 wires from each taillight housing. One will be the brighter filament, the other will be the dimmer filament, and if you have another, it will be ground.
Take a battery charger or some other 12 power source, and hook it to the light and figure out which is the bright filament. Your left turn/stop colored wire from the truck will go to this wire. Do the same for the right turn/stop on the pass side of the truck.
The other wire will be the dim filament in each light. These are running lights. You will need to run the brown wire back, and tie the brown wire to both rear lights, and also the license plate lights if you have any, and any other marker lights. This single brown wire feeds all these lights.
Another important part is the ground. This is the reason nothing will work when you turn the headlights on, you do not have a good ground to the lights. Figure out how they are grounded. If it's a wire, make sure the paint is scraped away, and bolt it to the bed if it's grounded, or bolt it to the frame. Or you can bolt it to the bed and then make another jumper wire somewhere and ground the bed to the frame. If the lights are grounded through the light mounting bolts, make sure the paint is scraped away, and this also may require a jumper wire be bolted to the frame and the bed to ground the bed.
