Lights
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Posting Guru
Joined: Jul 2003
Posts: 2,454
Likes: 1
From: Adams TN
Lights
My 85's left side running lights and tail lights are brighter than the left they do not get any brighter when the brakes are applied like the right side does when the running/headlights are on the left turn signal's do not work.
also the right brake light does not come on with the running lights off but the front turn signal works fine with the lights off.
the right side works like it is supposed to
whats wrong?
also the right brake light does not come on with the running lights off but the front turn signal works fine with the lights off.
the right side works like it is supposed to
whats wrong?
Tuned
Joined: May 2003
Posts: 345
Likes: 4
From: Southern IL
Dirty, corroded or wet sockets. Bad ground, bulbs in backwards, it can be done. I doubt that it's in the wiring harness. Usually, if you clean the contacts and use contact grease along with new bulbs it will solve the problem. If you suspect a ground as the case seems to always be when you have a dimming of the lights, just splice into the sockets ground wire and run it to the frame, then you will know.
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Posting Guru
Joined: Jul 2003
Posts: 2,454
Likes: 1
From: Adams TN
i changed the bulbs and it is the same
when i bought the truck the lights didn't even work. It is only the left side acting up
i replaced the tail light harness and it is still the same
but when you step on the brake they are both the same
the left side doesn't get brighter it stays the same
when i bought the truck the lights didn't even work. It is only the left side acting up
i replaced the tail light harness and it is still the same
but when you step on the brake they are both the same
the left side doesn't get brighter it stays the same
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Senior User
Joined: Aug 2004
Posts: 104
Likes: 1
From: Winnipeg, Canada
Similar thing happened to me when I got my truck...turns out the guy before me replaced the lights and wired them in backwards
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Thread Starter
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Posting Guru
Joined: Jul 2003
Posts: 2,454
Likes: 1
From: Adams TN
if the brake switch was bad would the left still light up like it does?
i will check the wiring i used the old sockets on the new harness the ones on the harness were crusty looking mine still look new i let you know how it works out
i will check the wiring i used the old sockets on the new harness the ones on the harness were crusty looking mine still look new i let you know how it works out
Tuned
Joined: May 2003
Posts: 345
Likes: 4
From: Southern IL
All still sounds like a bad ground. You have to check the contacts in the light socket, not just the bulb. If they are dirty, your lights will do the same thing. Sometimes, the sockets need to be changed out completely. I would take a short wire, bolt it to a good frame ground, then touch it to the outside of the bulb socket, on the metal part, which should be ground. Then you will know if it's a ground problem or not. Next, you can use one length of wire and run it from the running lights on the good side of the truck to the running lights on the bad side, just for test purposes. Can also switch bulbs from side to side and see if they do the same thing or not. It's just a process of elimination but I would bet on the ground, dirt problem.