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F Series Forum covers questions and discussions regarding Ford F-150, Ford F-250, Ford F-350, Ford F-450, Ford F-550, Ford F-650, and Ford F-750. |
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09-19-2015, 06:22 PM | #1 | |
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Join Date: Sep 2012
Location: Grover, Colorado
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Tailights stopped working please help
My truck is becoming a problem vehicle. My tailights decided to stop working. Its a 78 Ford F100 Ranger. A couple weeks ago my tailights wernt on, then I hit a bump and they came on. Next day they wouldnt work and they havnt worked since, its been a couple weeks and thats a problem because I leave work when its dark and this is my only vehicle to drive at the moment. I checked to make sure there were no broken wires, and as far as I can tell theyre all good for being 30some years old. I also changed the headlight switch thinking that was the problem. My dash lights were always dim, and when the tailights completely stopped working so did my dash lights. I noticed the license plate light isnt working either and I'm wondering if that bulb went out, could that be the problem? I dont know if the bulb is bad or if its just not working because the tailights wont. I know the bulbs are good in the tailights are good because they come on when I press the brakes. If you have any ideas please let me know, its fairly urgent as driving the truck at night is not optional.
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09-19-2015, 09:25 PM | #2 | ||
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Re: Tailights stopped working please help
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09-19-2015, 09:48 PM | #3 | |
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Re: Tailights stopped working please help
I was thinking it had to be a fuse. Only problem is its not the original box so I'll have to replace all of them because the guy that put it in wasn't nice enough to label anything. I also have another aftermarket box under the hood so I'll have to check that one out as well. Hopefully it's not a power issue to the fuse box because I don't have anything to test power and am strapped for cash at the moment. My project tomorrow will be replacing fuses and praying that works. Good to know it's not something I never heard of, that's what I was worried about.
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09-20-2015, 12:41 AM | #4 | |
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Re: Tailights stopped working please help
Fuse box has already been replaced huh. If it's an aftermarket fuse box (most likely) all the wires plug into it with crimp on connectors. If so, a wire could have easily become unplugged so check to make sure they're all still pushed onto the spade terminals. Good idea to replace the fuses one at a time first. You never know, you might get lucky.
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09-20-2015, 03:53 PM | #5 | |
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Re: Tailights stopped working please help
All fuses replaced and nothing. I broke down and bought a tester, the fuse box is good, all fuses have power to and from. So it has to be something between the fuse box and the tailights. What components are in between other than the headlight switch? I know its not the second fuse box under the hood, I traced all of those wires and they all go directly to engine components, nothing under the dash or leading to lights.
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09-20-2015, 05:52 PM | #6 | ||
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Re: Tailights stopped working please help
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The Following User Says Thank You to yekrats For This Useful Post: |
imakedacookies (09-23-2015)
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09-23-2015, 05:45 PM | #7 | |
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Re: Tailights stopped working please help
Good news ish. I pulled all the gauges out and started tracing wires with the tester. There is a baseball sized mangle of wire and electric tape between the headlight switch and the gauge cluster . Somewhere in there is a loose wire. Just moving it a tiny bit got all lights working again. I'm going to take all the tape off and find the bad wire in there. It's going to take a while because there's 3 t''s from the harness all collecting there. I know it's there, now I just gotta find it. Thank you for all the help. Your keeping this truck on the road
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09-23-2015, 07:45 PM | #8 | ||
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Re: Tailights stopped working please help
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dash , lights , tailights , wiring |
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