2007-04-05 12:58:01 · 7 answers · asked by albert 2 in Cars & Transportation ➔ Car Makes ➔ GMC
Haven't really checked the socket or anything else besides changing the bulb. It can't be the bulb so I think I'll do what you said and check the wiring and check for corrosion. Thanks for your help, I hope it isn't anything more then that:)
2007-04-05 13:36:29 · update #1
My guess would be a short in your wiring harness. It's old enough, and I don't think the switches connect anywhere else.
It could also be corrosion. How did the sockets look?
2007-04-05 13:10:13 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Use a test light at the connectors for the rear tail lights when the truck acts up. You will have to remove both lamps to access the connector. If the test light works when you use the brakes or the turn lights, you most likely have the ground fault problem associated with a poor circuit board that houses your lights. You will need to replace these if this is the case. If you have no power to the test light when you use the brakes or the turn lights and you are sure your ground is good, the most likely thing that has happened is the wires leading to the multifunction switch inside the column are broken. This will take some time to confirm as this is expensive. Quickest way to start confirmation is to look at the high mount brake lamp bulb while the brake lights are not working. Usually this one works when the others don't which would indicate as described. Good luck.
2007-04-05 15:01:12 · answer #2 · answered by Deano 7 · 0⤊ 0⤋
hi,, classic problem and very common with this vehicles. locate main ground at driver side rear main harness for this brake and turn lights ,(chassis level) below the driver side rear lights assembly and check for good contact to ground. you are looking for a black 18gage wire crimped to three 18gage wires that supplies ground to this lights. you might need to recrimp the connections, or replace the crimp connector . good luck.
2007-04-06 23:01:47 · answer #3 · answered by charlie 5 · 0⤊ 0⤋
If it have been my truck, i could be loosening the tank straps and attempt to get the previous line out of there. removing one strap thoroughly and tilting the tank rearward would enable you sufficient space to do what you may desire to do, and you will flow away all the gasoline tank crap linked (there's slightly of slack there). If I already had the tank loose that far and nevertheless could no longer get it completed, then you certainly would desire to besides get rid of the tank thoroughly... Brake fluid eats paint, and that i does no longer desire any of that to drip out of the previous line you left interior the physique rail get on your tailgate or blow on different vehicles.
2016-11-07 08:02:12 · answer #4 · answered by Anonymous · 0⤊ 0⤋
they had huge problems with these and there are updated pigtails and sockets for the tail lamps and they are cheap from GM check it out at the dealer.
2007-04-05 13:56:09 · answer #5 · answered by cubcowboysgirl 5 · 0⤊ 0⤋
they had problems with the taillights there is a chipboard with contacts they will get corroded and weak which will make them work when they want to .Id unplug it and replace it . there not very expensive
2007-04-05 13:34:50 · answer #6 · answered by jb 3 · 0⤊ 0⤋
they have tail light modules and the always rust out
2007-04-07 07:47:15 · answer #7 · answered by AARON R 1 · 0⤊ 0⤋