Right turn signal only... - Chevelle Tech
Electrical & Wiring Troubleshooting electrical problems.

 
LinkBack Thread Tools Search this Thread Display Modes
post #1 of 6 (permalink) Old Jul 30th, 18, 2:10 AM Thread Starter
Lifetime Premium Member
Tony G
 
Join Date: Feb 2014
Location: San Diego, CA
Posts: 291
Right turn signal only...

Kind of unique issue. Nothing in past posts specific to my issue. Here's the facts: '64 Elco. Restoration completed with cancelling cam and column harness replaced. Turn signals were working fine until I popped off the steering wheel to replace the spring between the steering wheel and the cancelling cam. Both parking lights work front and rear but the brake light and right turn signal not working front or back. The left signal works fine. I ran extra grounds just in case with no change. So I'm thinking of checking power coming from the turn signal switch harness. Any other ideas....or tests to run. Thanks

'64 SS Coupe, 4 spd Muncie M-20, 12 bolt 3:42, 350sb 9.75:1, Edelbrock RPM top kit with roller cam, EB 600cfm carb.
Weekend driver....
Weekends need to be 4 days long every week.....
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
Antalamo is offline  
Sponsored Links
Advertisement
 
post #2 of 6 (permalink) Old Jul 30th, 18, 3:22 AM
Tech Team
 
Join Date: Jul 2018
Posts: 34
does the left signal dim down when you hit the brakes? double check sockets for corrosion. sounds like a grounding issue. dielectric all the connections?
BlakeSixty8 is offline  
post #3 of 6 (permalink) Old Jul 31st, 18, 12:59 AM Thread Starter
Lifetime Premium Member
Tony G
 
Join Date: Feb 2014
Location: San Diego, CA
Posts: 291
Re: Right turn signal only...

I'll run that check and let you know. Just a pain because it all was working fine before I replaced that spring under the steering wheel. I know just taking off the steering wheel shouldn't have any thing to do with it, but how coincidental.

'64 SS Coupe, 4 spd Muncie M-20, 12 bolt 3:42, 350sb 9.75:1, Edelbrock RPM top kit with roller cam, EB 600cfm carb.
Weekend driver....
Weekends need to be 4 days long every week.....
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
Antalamo is offline  
 
post #4 of 6 (permalink) Old Aug 3rd, 18, 12:53 AM Thread Starter
Lifetime Premium Member
Tony G
 
Join Date: Feb 2014
Location: San Diego, CA
Posts: 291
Re: Right turn signal only...

Back on the thread for more suggestions. Here's where I'm at:
Ran grounds everywhere, switch, light sockets, column, etc..
Running lights both sides and left turn signal work fine.
Nothing dims when lights are turned on and activate left signal.
The steering column harness is new
Canceling cam is new

Was on another thread and said to run a fused jumper from a hot to the lower steering column harness blue wire. It should light up the turn signal. That should isolate the issue to somewhere in the column wiring??
I'm just looking for troubleshooting options or some other ways to isolate the problem.

FYI: Both signals worked fine a few weeks back. The only thing I messed with was working on the wiper motor ground strap and hooking up the horns on the firewall.

'64 SS Coupe, 4 spd Muncie M-20, 12 bolt 3:42, 350sb 9.75:1, Edelbrock RPM top kit with roller cam, EB 600cfm carb.
Weekend driver....
Weekends need to be 4 days long every week.....
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

Last edited by Antalamo; Aug 3rd, 18 at 1:15 AM.
Antalamo is offline  
post #5 of 6 (permalink) Old Aug 3rd, 18, 9:02 PM
Gold Member
Joe
 
Join Date: Aug 1998
Location: Lincoln, NE
Posts: 4,477
Re: Right turn signal only...

Quote:
Originally Posted by Antalamo View Post
Turn signals were working fine until I popped off the steering wheel to replace the spring between the steering wheel and the cancelling cam.
Probably no coincidence. Brake light power is directed thru the turn signal switch assembly. Any issues with the corresponding “side” set of contacts will disrupt front turn signal and/or rear brake light action.


If you have NO RIGHT side operation, crawl under the dash to where the turn signal column connector is. These are the wires you will focus on.

Start the vehicle.

Don’t unplug any harnesses.

Take a jumper wire and stick in the rear cavity areas of the turn signal harness between the dark blue wire and the purple wire. Did the turn arrow on the dash and front signal magically come to life?

-If you don't stand for something, you'll fall for anything.
Coppertop is offline  
post #6 of 6 (permalink) Old Aug 11th, 18, 9:57 AM Thread Starter
Lifetime Premium Member
Tony G
 
Join Date: Feb 2014
Location: San Diego, CA
Posts: 291
Re: Right turn signal only...

After some calls to OPGI Tech Dept and a few other blog searches, I was able to figure it out. Along with Coppertop Joe's idea to juice up the harness which should at minimum make the lights turn on, I was able to figure a few things out. The turn signal switch contacts in the right turn mode were not making a good enough connection. The tiny metal strips in the switch had to be bent a slight so it could make correct contact. Secondly the rear tail light bulb (brand new) had a broken filament which is why the rear was not working and the front turn signal housing grounding was not good. Funny because the front running light worked fine, but not enough ground to allow for brighter turn signal. A combination of 3 issues and some hair pulling to solve the right turn signal problem. All works well now.

Thanks to Don who offered up the steering wheel spring. The spring I was told by a steering column restoration shop said most of the time they are not needed but best if you can install one. I ordered one from Classic Industries but was for a Ford. Almost identical to my Chevelle original but need to be trimmed down 1 coil. All putt together with no issues. Thanks to all who had some great ideas to get this problem solved.

'64 SS Coupe, 4 spd Muncie M-20, 12 bolt 3:42, 350sb 9.75:1, Edelbrock RPM top kit with roller cam, EB 600cfm carb.
Weekend driver....
Weekends need to be 4 days long every week.....
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
Antalamo is offline  
Sponsored Links
Advertisement
 
Reply

Tags
blinker , right turn signal

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Chevelle Tech forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address. Note, you will be sent a confirmation request to this address.

Email Address:
OR

Log-in









Old Thread Warning
This Thread is more than 403 days old. It is very likely that it does not need any further discussion and thus bumping it serves no purpose.
If you still feel it is necessary to make a new reply, you can still do so though.

Thread Tools Search this Thread
Show Printable Version Show Printable Version
Email this Page Email this Page
Search this Thread:

Advanced Search
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome