no brake or turn signels - The 1947 - Present Chevrolet & GMC Truck Message Board Network

72bigblock · 12-13-2003, 02:26 AM

hi all no brake lights or turn signels in rear what could it be?? chris

lukecp · 12-13-2003, 02:36 AM

Check your fuses

Longhorn Man · 12-13-2003, 02:45 AM

If you do have tail lights, then it'll be bulbs, fuse, turn signal switch or lack of power coming to the turn signal switch/brake light switch.

Rod · 12-13-2003, 01:25 PM

Check your plug underneath for wiring power for different operation.. if its got power there then you know its back from there somewhere...probably grounds...seems it happens often.

*Gee_Emm* · 12-13-2003, 02:34 PM

First guess is the ground. On my 69 a few months ago I had no brake or turn lights in the back, everything up front worked. I checked the ground couldnt find a problem. Turns out the battery was a little too weak. I had to crank it quite a bit that day to get it started and doing so drained the battery. Just had to let it sit running a while to get it charged up.

Cat Fuzz · 12-13-2003, 03:22 PM

The rear lights are grounded by the bolts that hold them on. They can get rusty under there. I had this problem with my truck. Instead of trying to clean, I bolted a wire to each one and grounded them.

Longhorn Man · 12-13-2003, 10:21 PM

Why would his ground be bad if he has parkign lights working?

*Randy70C-10* · 12-13-2003, 10:24 PM

I have to agree with Andy, sounds like the "bright" filaments are burned out in the bulbs.

Longhorn Man · 12-14-2003, 12:13 PM

Grounds are WAY over rated on these trucks. Any problem that anyone has, everyone starts yellin grounds.
Sure, I do realize grounds are important, and I go over board on my grounds on my initial 'getting it on the road' work. However, only once have I had problems after that.
Remember, the amps taken to light the parking lights is not much less than the amp requirement to light the brake lights. What are we talkin...mayber 2amps between the two? (Probably less) If the parking lights work, then the ground has a 99.999% chance of being good.

*rage'nrat638* · 12-14-2003, 01:11 PM

Andy's Quote of the week.
My take on gay marriges...
If 2 men want to be miserable together, hey...I say go for it.

SOUNDS KIND OF GRITTY .....TO ME

*Gee_Emm* · 12-14-2003, 01:21 PM

Actually now that I think about it, the time I had that problem some of my lights in the rear were working, I think I just had the plate light and none of the others. So try charging up your battery real good and see if that takes care of it.

Being that these trucks are 30 years old things start wearing out. The connectors to the lights stay on fairly good but the grounds don't. Example, the side marker lights with the ground going into the bedside, the wire usually breaks off or the nut holding the lug might even rust. 9 times out of 10 wether it is these trucks or a trailer connection or what ever, the cause of my problems is a ground. I have even had cases were the ground was completely gone and some lights worked but weirdly, the circut was getting completed with the ground finding another path through the wires going to the other lights.

12-13-2003, 02:26 AM	#1
72bigblock Registered User Join Date: Oct 2002 Location: rockford il. Posts: 190	no brake or turn signels hi all no brake lights or turn signels in rear what could it be?? chris

12-13-2003, 02:36 AM	#2
lukecp Formerly yellow72custom Join Date: May 2001 Location: Austin, TX Posts: 7,531	Check your fuses __________________ '72 Chevy C10 Mild 350/TH350/3.07. Ochre/White. Old high school ride. '70 GMC C2500 '62 327 4bbl/SM465/4.56-geared Dana 60. White/White. Project or parts truck. '97 Saturn SL DD. 1.9/5-speed. 40+ highway mpg

12-13-2003, 01:25 PM	#4
Rod Join Date: Dec 1999 Location: Eastern - Manitoba Canada, Winnipeg Posts: 4,369	Check your plug underneath for wiring power for different operation.. if its got power there then you know its back from there somewhere...probably grounds...seems it happens often. __________________ Senior active founding member. 70 3/4 ton GMC Suburban 4x4 250/4 spd. 71 1/2 ton Suburban Chevy 4x4, 350/350 72 Chev 1 ton tow truck 402BB w/Holmes 440 wrecker on propane 2005 FLSTSCI Harley Springer 85 FXSB Harley Lowrider 72 Triumph 650 Bonneville 5spd "Poor people don't have hobbies" Quote from wife.

12-14-2003, 01:21 PM	#11
Gee_Emm Account Suspended Join Date: Sep 2000 Posts: 4,002	Actually now that I think about it, the time I had that problem some of my lights in the rear were working, I think I just had the plate light and none of the others. So try charging up your battery real good and see if that takes care of it. Being that these trucks are 30 years old things start wearing out. The connectors to the lights stay on fairly good but the grounds don't. Example, the side marker lights with the ground going into the bedside, the wire usually breaks off or the nut holding the lug might even rust. 9 times out of 10 wether it is these trucks or a trailer connection or what ever, the cause of my problems is a ground. I have even had cases were the ground was completely gone and some lights worked but weirdly, the circut was getting completed with the ground finding another path through the wires going to the other lights. Last edited by Gee_Emm; 12-14-2003 at 01:25 PM.

12-13-2003, 02:45 AM	#3
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	If you do have tail lights, then it'll be bulbs, fuse, turn signal switch or lack of power coming to the turn signal switch/brake light switch.

12-13-2003, 02:34 PM	#5
Gee_Emm Account Suspended Join Date: Sep 2000 Posts: 4,002	First guess is the ground. On my 69 a few months ago I had no brake or turn lights in the back, everything up front worked. I checked the ground couldnt find a problem. Turns out the battery was a little too weak. I had to crank it quite a bit that day to get it started and doing so drained the battery. Just had to let it sit running a while to get it charged up.

12-13-2003, 03:22 PM	#6
Cat Fuzz My son, my joy. Join Date: Sep 2003 Location: Spokane WA Posts: 463	The rear lights are grounded by the bolts that hold them on. They can get rusty under there. I had this problem with my truck. Instead of trying to clean, I bolted a wire to each one and grounded them.

12-13-2003, 10:21 PM	#7
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	Why would his ground be bad if he has parkign lights working?

12-13-2003, 10:24 PM	#8
Randy70C-10 Account Suspended Join Date: Mar 2001 Location: Virginia Beach, Va. U.S.A. Posts: 15,320	I have to agree with Andy, sounds like the "bright" filaments are burned out in the bulbs.

12-14-2003, 12:13 PM	#9
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	Grounds are WAY over rated on these trucks. Any problem that anyone has, everyone starts yellin grounds. Sure, I do realize grounds are important, and I go over board on my grounds on my initial 'getting it on the road' work. However, only once have I had problems after that. Remember, the amps taken to light the parking lights is not much less than the amp requirement to light the brake lights. What are we talkin...mayber 2amps between the two? (Probably less) If the parking lights work, then the ground has a 99.999% chance of being good.

12-14-2003, 01:11 PM	#10
rage'nrat638 Account Suspended Join Date: Mar 2003 Location: THE FALL GUY CHICAGO IL Posts: 5,883	Andy's Quote of the week. My take on gay marriges... If 2 men want to be miserable together, hey...I say go for it. SOUNDS KIND OF GRITTY .....TO ME



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