Sign up to remove ads. We'd love to have you amongst our ranks! Just Click here!


gmc forums   gmc forums


Go Back   GMC Forums > GMC Vehicles Currently In Production > GMC Sierra Forum

Advertisements
cars connected social network






GMC Sierra Forum Forum for discussions regarding the GMC Sierra


GMC Forum: right rear turn signal rapid fires
Reply
 
Thread Tools
  #1  
Old 01-09-2019, 11:21 AM
rober rober is offline
Junior Member
Drives a GMC Truck
 
Join Date: Jul 2018
Posts: 11
Default right rear turn signal rapid fires

I posted about this awhile back. the same issue has returned. I can't edit the thread title. it's the left side.
I've been asking around shops & on other forums about this. my left turn signal will click 4 times normally & then go rapid fire. I found a video on you tube where; there's a junction plate on a crossmember just behind the spare tire with 4 plugs. one goes to the left signal. the fix is to unplug them & clean them. I did that & it fixed it for a couple weeks. 2 days ago I repeated this procedure 5 times. the last time I bought some CRC terminal cleaner, sprayed everything, coated terminals with dialectic grease. still doesn't work. the symptoms are: rapid fire signal, ALL bulbs, including backup flash. brake light is dim. it's easier to get to the right hand tail light plug ( appears to feed that light only ) when you unplug all 4 plugs. at one point I only plugged in that plug to test & got a rapid fire right signal as well. after everything was hooked up the right side worked normally. i'm a good mechanic but my expertise is with older cars, trucks, tractors, etc. give me a vehicles with points & carburetors any time. the guy on you tube said on his 1st attempt he replaced the bulbs & that fixed it for a day or 2. i'm thinking this is a ground issue but i'm not sure how to proceed. taking the cheapest route 1st I might try replacing bulbs. I found a source for the terminal to tail light harness for $25.00 so I might try that if the bulbs do not fix it. any input????
https://www.youtube.com/watch?v=Vxx3vkfMzgs

Last edited by rober; 01-10-2019 at 09:41 AM.
Reply With Quote

  #2  
Old 01-10-2019, 09:43 AM
rober rober is offline
Junior Member
Drives a GMC Truck
 
Join Date: Jul 2018
Posts: 11
Default

just had a brain fart. since the you tube video & the first fix I've been focused on the rear light. i'm going to start checking front connects now as well.
Reply With Quote
Reply
Registered members see less ads. Please sign up! We'd love to have you...

Thread Tools

Posting Rules
You may not post new threads
You may not 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

Forum Jump


All times are GMT -5. The time now is 09:49 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2019, vBulletin Solutions Inc.
gmcowners.com recognizes that "GMC", it's logos and various model names and numbers are registered trademarks of the General Motors Corporation. These terms are used for identification purposes only. gmcowners.com is not affiliated in any way with the General Motors Corporation, GMC or any other company listed herein. All information on this site is the opinion of its members and not the opinion of the site itself. 2017 Madison Ross Media Group. All rights reserved. Content published on GMCOwners.com requires permission for reprint.


MADISON ROSS MEDIA GROUP MARKETPLACE
Need products for your GMC Truck? Check out your options at the links below:

Looking for something a little sporty? Believe it or not, Kia may have something for you. The Kia Stinger is a large sport-oriented hatchback sedan in the mold of the Audi A7.