Brake light problem/??? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

guypm · 12-29-2002, 07:39 AM

Anybody have any suggestion on this one ? I have tail lights when I pull the headlight switch on the dash. No brake lights. I changed the brake light switch at the pedal. I changed the brake light fuse. I also smoothed the side marker lights front and back, taped each wire individually on the side markers so not to contact each other. Any info would be appreciated. I'll probably use a tester today when i get off work. Gonna check the switch receptacle to see if there is 12 volts at the switch.
Thanks, Guy

oldyeller · 12-29-2002, 09:11 AM

check your grounds at each of the rear lights, sounds like your loosing ground and the circuit in question is going the other to complete the circuit.

guypm · 12-29-2002, 09:25 AM

ttt

70c10 · 12-29-2002, 01:07 PM

I just had a similar problem. I was hardly getting any current to my right rear brake light but both tail lights worked fine. It turned out to be my turnsignal switch. Now my tail lights and brake lights are brighter than ever and work perfect.

Gordo · 12-29-2002, 01:23 PM

Have you checked for power at the fuse and the brake light switch with a test light? If you have power at those points then I would start looking at the signal switch, assuming you replaced the rear 1157 bulbs. Does the emergency flashers work?

Longhorn Man · 12-29-2002, 04:05 PM

You have a good ground, other wise (99% of the time) the tail lamps would be out too.
You need to trace the wires.
Being that neither one works, (asuming that both your turn signals work) odds are that the problem will be in the turn signal switch, or at the brake light switch...or not getting power to the switch.

guypm · 12-29-2002, 09:45 PM

thanks for the info folks. i do not have turn signals or emergency flashers. with my working hours lately, i'll probably have to wait til the weekend to check out the fuse and switch power. i remember several months back that i was trying to get the blinkers to work and i messed up the circuit on the back of the dash only where the indicator flashers are. the blinkere were working at one time. i didnt realize that they were all tied together.
Guy

12-29-2002, 07:39 AM	#1
guypm Registered User Join Date: Feb 2002 Location: orange, tx usa Posts: 167	Brake light problem/??? Anybody have any suggestion on this one ? I have tail lights when I pull the headlight switch on the dash. No brake lights. I changed the brake light switch at the pedal. I changed the brake light fuse. I also smoothed the side marker lights front and back, taped each wire individually on the side markers so not to contact each other. Any info would be appreciated. I'll probably use a tester today when i get off work. Gonna check the switch receptacle to see if there is 12 volts at the switch. Thanks, Guy __________________ guypm 1971 SWB Fleetside/350 performer rpm heads &intake/ holley 750dp/1.5roller rockers/MSD6a/700r4 1650stall/one piece driveshaft/3.73 open/dynomax ceramic coated headers/3chamber flowmasters/

12-29-2002, 09:11 AM	#2
oldyeller Captain CAAAVVVMMMAAANNN! Join Date: Mar 2002 Location: Anna Texas Posts: 726	check your grounds at each of the rear lights, sounds like your loosing ground and the circuit in question is going the other to complete the circuit. __________________ 72 LWB Fleetside C10 Custom 350/350 97 GMC Yukon 4X4 SLT Anna, Texas check out the project old yeller

12-29-2002, 09:25 AM	#3
guypm Registered User Join Date: Feb 2002 Location: orange, tx usa Posts: 167	ttt __________________ guypm 1971 SWB Fleetside/350 performer rpm heads &intake/ holley 750dp/1.5roller rockers/MSD6a/700r4 1650stall/one piece driveshaft/3.73 open/dynomax ceramic coated headers/3chamber flowmasters/

12-29-2002, 01:07 PM	#4
70c10 67-72 Addict! Join Date: Feb 2002 Location: The TAX State! Posts: 7,857	I just had a similar problem. I was hardly getting any current to my right rear brake light but both tail lights worked fine. It turned out to be my turnsignal switch. Now my tail lights and brake lights are brighter than ever and work perfect. __________________ Jim 1970 C/10 Fleetside w/Ghost Flames Lowered 4.5" front and 4" rear (Raked) 355/350 Turbo w/shift kit 10" Redneck Performance Verter w/2500 stall Hooker Super Comps part#2808-1 Performer RPM Air-Gap 12 Bolt w/3:73 gears- Eaton Posi Comp Cams XE262 with 1.6 Crane Energizers, Road Demon 625 and Brodix IK 180 heads

12-29-2002, 01:23 PM	#5
Gordo Registered User Join Date: Jan 2001 Location: Killingworth, CT. USA Posts: 3,378	Have you checked for power at the fuse and the brake light switch with a test light? If you have power at those points then I would start looking at the signal switch, assuming you replaced the rear 1157 bulbs. Does the emergency flashers work? __________________ 1971 C10 swb stepside 350/700R4/3.73posi (retired as of 4/22/03) 1998 S10 short bed 2002 S10 Blazer 1942 Oldsmobile 1958 Massey Harris Pony 1951 Wife Killingworth, Connecticut May those who love us, love us, any of those who do not love us, may God turn their hearts. And if God is unable to turn their hearts, may he turn their ankles so we may know them by their limping. A man who works with his hands is a laborer; a man who works with his hands and his brain is a craftsman; but a man who works with his hands and his brain and his heart is an artist.

12-29-2002, 04:05 PM	#6
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	You have a good ground, other wise (99% of the time) the tail lamps would be out too. You need to trace the wires. Being that neither one works, (asuming that both your turn signals work) odds are that the problem will be in the turn signal switch, or at the brake light switch...or not getting power to the switch.

12-29-2002, 09:45 PM	#7
guypm Registered User Join Date: Feb 2002 Location: orange, tx usa Posts: 167	thanks for the info folks. i do not have turn signals or emergency flashers. with my working hours lately, i'll probably have to wait til the weekend to check out the fuse and switch power. i remember several months back that i was trying to get the blinkers to work and i messed up the circuit on the back of the dash only where the indicator flashers are. the blinkere were working at one time. i didnt realize that they were all tied together. Guy __________________ guypm 1971 SWB Fleetside/350 performer rpm heads &intake/ holley 750dp/1.5roller rockers/MSD6a/700r4 1650stall/one piece driveshaft/3.73 open/dynomax ceramic coated headers/3chamber flowmasters/



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