The 1947 - Present Chevrolet & GMC Truck Message Board Network

The 1947 - Present Chevrolet & GMC Truck Message Board Network (https://67-72chevytrucks.com/vboard/index.php)
-   The 1967 - 1972 Chevrolet & GMC Pickups Message Board (https://67-72chevytrucks.com/vboard/forumdisplay.php?f=3)
-   -   Tailight issue (https://67-72chevytrucks.com/vboard/showthread.php?t=693289)

one3n3my 01-01-2016 07:23 AM

Tailight issue
 
I replaced the old light sockets with these.

http://www.oreillyauto.com/site/c/de...l+light+socket

I soldered the wires together with the appropriate corresponding wire but the only light that is working is the brake light, no turn signal or actual lights for night driving.

Does anyone know what the issue could be and yes I have checked the fuses and those are fine.

haysonj 01-01-2016 07:52 AM

Re: Tailight issue
 
Did they work before you installed this? How is it grounded? That socket says its for a courtesy light. If you used one wire for the ground then only one half the bulb will work. If you have the wires right and the socket grounded to the body then you need to get a test probe and start checking wires for power back to the fuse panel.

Grumpy old man 01-01-2016 08:02 AM

Re: Tailight issue
 
The socket you used looks like it's made for an 1156 single filament bulb you need one for an 1157 2 filament bulb ,use the search on the top of the page and you will get all the info you need .

one3n3my 01-01-2016 10:56 AM

Re: Tailight issue
 
It's only a 2 wire pigtail. So my question is how would I ground it to the truck? Because one wire is for the brake light and the other is a ground.

And no the lights didn't work before. I had to replace the whole wiring harness for the truck

LockDoc 01-01-2016 11:09 AM

Re: Tailight issue
 
Quote:

Originally Posted by one3n3my (Post 7430490)
It's only a 2 wire pigtail. So my question is how would I ground it to the truck? Because one wire is for the brake light and the other is a ground.


Is one of the slots in the bulb holder deeper than the other one or are they both the same depth? That holder is for a dual element bulb otherwise there would only be one contact in the center of the base.

LockDoc

Kennuck 01-01-2016 11:14 AM

Re: Tailight issue
 
One wire is for running lights the other is for turn signal. It grounds through the housing. Make sure your housing is grounded to the box and the box is grounded to the frame.

Kennuck 01-01-2016 11:15 AM

Re: Tailight issue
 
Stop and turn are the same wire.

one3n3my 01-01-2016 11:18 AM

Re: Tailight issue
 
Quote:

Originally Posted by LockDoc (Post 7430513)
Is one of the slots in the bulb holder deeper than the other one or are they both the same depth? That holder is for a dual element bulb otherwise there would only be one contact in the center of the base.

LockDoc

They are both the same depth.

Kennuck, would I just need a ground strap to ground it? Just trying to cover all the bases to get it road worthy and then start updating everything through time.

Kennuck 01-01-2016 11:26 AM

Re: Tailight issue
 
Quote:

Originally Posted by one3n3my (Post 7430526)
They are both the same depth.

Kennuck, would I just need a ground strap to ground it? Just trying to cover all the bases to get it road worthy and then start updating everything through time.

If both slots are the same depth then it's not the right bulb holder. The link you posted clearly shows a two contact bulb holder which would be right for an 1157 bulb for tail lights. You may want to check that again.

If it has two contacts in the bottom with two wire out the back it should be for an 1157 and be the right one for this application.

The housing usually grounds to the box by the mounting screws holding it to the box. If there is not good contact here you can add a ground strap from the box to the tail light housing to be sure. Again make sure your box is grounded to the frame as well.

1970 charlie 01-01-2016 11:29 AM

Re: Tailight issue
 
One wire is for stop and turn the other wire is for tail lights. And the ground is the case. Make sure you have a good ground or it will try find ground thru the other wire. The heavy fillament in the bulb is your stop and turn

one3n3my 01-01-2016 11:55 AM

Re: Tailight issue
 
Thanks for the help. I have been stumped for the last few months trying to figure it our while sorting out the brakes.

LockDoc 01-01-2016 12:24 PM

Re: Tailight issue
 
Quote:

Originally Posted by one3n3my (Post 7430583)
Thanks for the help. I have been stumped for the last few months trying to figure it our while sorting out the brakes.


If the slots are the same depth that is not going to work....

LockDoc

LockDoc 01-01-2016 12:28 PM

Re: Tailight issue
 
-
Here is the type you need....

http://www.ebay.com/itm/2x-Heavy-Dut...-/272038843584

LockDoc

Kennuck 01-01-2016 02:06 PM

Re: Tailight issue
 
Looking more closely at the link you posted, it does look like the slots are the same depth. This is not the right bulb holder. This says it is for a dome lamp which in most cases does need a ground wire because they are often mounted in a plastic case. You need the type posted by LocDoc


All times are GMT -4. The time now is 11:51 PM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com