Electrical problem
Thread Starter
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Junior User
Joined: Aug 2003
Posts: 72
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Electrical problem
[FONT=Arial Black]Hello all!
I have a new problem. My '78 has never had an electrical problem until now.
The front passenger side running light does not work.
The front passenger side blinker does work.
The bulb is good.
The passenger side indicator on the dash is on when the running lights are on. Then works correctly when I turn on the blinker.
Any thoughts?
Thanks
I have a new problem. My '78 has never had an electrical problem until now.
The front passenger side running light does not work.
The front passenger side blinker does work.
The bulb is good.
The passenger side indicator on the dash is on when the running lights are on. Then works correctly when I turn on the blinker.
Any thoughts?
Thanks
Post Fiend
Joined: May 2004
Posts: 5,277
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From: St George, SC I-95
take a small piece of sandpaper or steel wool and clean the terminals of the sockets. Also clean the tail light socket. I know you didnt mention it giving you trouble but sometimes weird things happen. On my 79 250 the taillight wouldnt blink because of the front turn signal. This is probably the most common electrical problem these trucks have.
New User
Joined: Jan 2008
Posts: 0
Likes: 24
In laymans terms, you have electrical feedback from circuit to another.
Running lights to T/S system.
This is usually from a bad socket or bulb nub (contact) in the entire system.
Meaning it can be anywhere in the system on the right side.
Running lights to T/S system.
This is usually from a bad socket or bulb nub (contact) in the entire system.
Meaning it can be anywhere in the system on the right side.
Senior User
Joined: Nov 2005
Posts: 158
Likes: 0
Mine did the same thing on both sides and I found the problem was no ground at the bulb. In my case the ground was broken inside the socket. I just made a ground jumper that bypasses the socket and solved the problem.
Thread Starter
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Junior User
Joined: Aug 2003
Posts: 72
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Update
Well here is the skinny
I dismantled both front and rear lights. Sprayed the sockets with contact cleaner Tuesday night and let it set until Thursday night when I had time to look at it. I turned on the running lights and all was normal. Tried the blinkers...all is normal.....Drove it around...all is normal. Seems to have fixed itself.....
thanks to all that replied!!
Carot6
I dismantled both front and rear lights. Sprayed the sockets with contact cleaner Tuesday night and let it set until Thursday night when I had time to look at it. I turned on the running lights and all was normal. Tried the blinkers...all is normal.....Drove it around...all is normal. Seems to have fixed itself.....
thanks to all that replied!!
Carot6
