Electrical Issue - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**old Rusty C10** · 04-20-2012, 07:51 PM

My truck was fine for a long time and it just spent six months or so in the body shop being redone now i have this issue,,
when applying the brakes the left brake light doesnt work. you put the left turn signal on and it does put the right signal on and it does..
most times if you use a turn signal it will work right after that at least one time then it doesnt work
Flashers always work
I did have a couple of hacks into the rear harness for trailer wiring so i replaced the wiring harness with a good used one and it still does the same thing. Im thinking perhaps the turn signal switch is no good?
there is a tilt column in this truck ( i added it) and there is an aftermarket steering wheel and horn kit (that i added) it takes a little extra effort to push the turn signal lever to make a right turn
I checked the chassis grounds several times on the truck any other ideas>

J Knight · 04-20-2012, 08:27 PM

Having the same problem after changing the tail light harness coupled with the stiffness in the blinker lever would make me think its the signal switch as well.

clinebarger · 04-20-2012, 09:30 PM

Put a turn signal switch in it.

04-20-2012, 07:51 PM	#1
old Rusty C10 Robert Olson Transport Join Date: Oct 2002 Location: recent transplant to NC USA Posts: 20,310	Electrical Issue My truck was fine for a long time and it just spent six months or so in the body shop being redone now i have this issue,, when applying the brakes the left brake light doesnt work. you put the left turn signal on and it does put the right signal on and it does.. most times if you use a turn signal it will work right after that at least one time then it doesnt work Flashers always work I did have a couple of hacks into the rear harness for trailer wiring so i replaced the wiring harness with a good used one and it still does the same thing. Im thinking perhaps the turn signal switch is no good? there is a tilt column in this truck ( i added it) and there is an aftermarket steering wheel and horn kit (that i added) it takes a little extra effort to push the turn signal lever to make a right turn I checked the chassis grounds several times on the truck any other ideas> __________________ Bob 1951 International running on a squarebody chassis "If a man's worth is judged by the people he associates himself with, then i am the richest man in the world knowing some of the fine people of this board" http://67-72chevytrucks.com/vboard/a...t.php?f=25&a=9 (you can review the site rules here!) PM Me for your vehicle/parts hauling needs in the North East US or see my Facebook page Robert Olson Transport Live each day to the fullest.. you never know when fate is going to pull the rug out from under you... I hate cancer!!

04-20-2012, 08:27 PM	#2
J Knight Registered User Join Date: Jun 2011 Location: Baytown TX Posts: 2,219	Re: Electrical Issue Having the same problem after changing the tail light harness coupled with the stiffness in the blinker lever would make me think its the signal switch as well. __________________ John 82 Chevy Silverado 350ci/TH350

04-20-2012, 09:30 PM	#3
clinebarger Senior Member Join Date: May 2009 Location: Fort Worth, TX Posts: 6,370	Re: Electrical Issue Put a turn signal switch in it.



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