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73-87 Chevy _ GMC Trucks => 73-87 Chevy & GMC Trucks => Topic started by: Low87 on June 28, 2011, 07:54:09 pm

Title: Brake lights/turn signals out
Post by: Low87 on June 28, 2011, 07:54:09 pm

My brake/signal bulbs aren't working. Both.

Fuse is good
Bulbs good
Everything seems snug

I can disassemble the housing and remove the bulb, upon reassembly everything works fine. At some point it quits working again. Wiring looks okay, but I suspect the splice done by a PO for the trailer hookup. I'll chase that down tomorrow, any other ideas to look at while I do?

Title: Re: Brake lights/turn signals out
Post by: Irish_Alley on June 28, 2011, 08:22:30 pm

seams like you have the right ideal on what to check and you should find your problem

Title: Re: Brake lights/turn signals out
Post by: big bear on June 28, 2011, 09:46:01 pm

i agree,  start with what you listed and go from there.   sometimes it helps to think out loud haha

Title: Re: Brake lights/turn signals out
Post by: Grim 82 on June 28, 2011, 09:50:56 pm

Check the grounds behind the lenses and clean the sockets.

Title: Re: Brake lights/turn signals out
Post by: 1979C20 on June 29, 2011, 03:01:59 am

I had screwy wiring and similar issues when I first got my truck. The trailer "wiring" was a bunch of e-tape and some wire nuts. I butt spliced the 3 wires together and it was all better, but one night all my tail lights went out because the ground splice came loose. If youd like I can snap pics of the splice so you can see which wires.

Title: Re: Brake lights/turn signals out
Post by: royo on June 29, 2011, 06:15:02 am

Also check  the plug end down under the frame

Title: Re: Brake lights/turn signals out
Post by: Low87 on June 29, 2011, 08:10:48 am

Thanks a lot guys, I'll let you know what I find.

Title: Re: Brake lights/turn signals out
Post by: Low87 on June 30, 2011, 09:18:31 am

I checked over everything with no luck.  Finally pulled the bulbs again and noticed that one end of the filament in the pass side bulb was broken.  I guess moving it around when putting it back in made contact for a while.  New bulb and everything (driver's side too) works fine now.  No idea how that happened.  Still going to rewire the trailer pigtail this weekend.

Title: Re: Brake lights/turn signals out
Post by: big bear on June 30, 2011, 03:18:14 pm

glad to hear your all fixed up