Question about 1993 GMC Sierra

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Right rear brake and turn signal out running lights work 93 gmc sierra

Flasher sounds normal, front signal works fine

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Same thing was wrong with my 95 gmc it was tail light assembly that bulbs plug in to 15dllars eBay or 68 dollars at dealer ?!!!

Posted on Feb 17, 2013

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6ya6ya
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Posted on Jan 02, 2017

  • 375 Answers

SOURCE: 1998 gmc sierra brake lights

did u check that they not burn?if not you should Check the wires going into the steering column if you don't have separate turn signal lights and brake lights because if they use the same bulb then the turn signal may be bad. If I remember correctly that particular car doesn't work this way, but I include it just in case.

Posted on Jun 29, 2008

  • 50 Answers

SOURCE: gmc sierra turn flasher location

The flasher on this vehicle looks nothing like the flasher's of yesteryear. It will be located behind the drivers side knee bolster(under the steering wheel). It will be a small black box that is about 3 inches wide, 2 inches deep, and 1 inch thick. It may be somewhat difficult to locate because on some of the GM trucks they actually hide it behind the guage cluster bezel but to the left of the guages. Let me know if I can help you any further.

Posted on Aug 21, 2008

mrgreenz
  • 962 Answers

SOURCE: 1998 GMC Sierra Signal Fuse Blowing

it seems you have a short in either one of the lights or interlock. all are connected to the same fuse. trace the wiring from the fuse box back to the component. Using a test light test in between the wires. check for any obvious breaks in the wiring.

Posted on Dec 06, 2008

aaangie220
  • 202 Answers

SOURCE: 1995 GMC Jimmy signal light function not working

ASE mechanic here:
trying checking the turn signal flasher, the fuses, if all work fine, most likely cause is the multi-function switch.

Posted on Jan 26, 2009

  • 15 Answers

SOURCE: my 1999 gmc sierra's brake lights don't come on

There's a switch at the top of your brake pedal. They wear out, chance are that's the problem, easy fix in the driveway.

Posted on May 05, 2010

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Related Questions:

1 Answer

Location of flasher relay in a 1998 GMC Sierra


There's always a box with relays black with clips you take off to check..

Mar 23, 2016 | 1998 GMC Sierra

1 Answer

Left bleaker and break light not working. Turn signal works bleaks faster than right side.


Has the vehicle been in an accident on the left rear side. First check the bulb to be sure it is not defective, trade it out with the side that works properly to test. If the bulb works well then My thought are you may have a shorted wire. The turn signal flasher works by heat build up within the flasher the heat is caused by the load of the bulbs, the load heats the metal spring causing it to open the circuit then as quickly as it cools down the circuit closes again lighting the bulbs.
There is also a possibility of a defect in the turn signal mechanism on the steering column. The turn signal switch on many models does three different things on many models that use the same bulb element / or bulb for brake and turn on rear of vehicle. It controls the circuit for brake light by sending power both left and right side rear when turn signal is in neutral position then when turn signal is in left turn the switch cancels brake light power to left side rear and supplies flasher power to left side while maintaining brake light supply to the right side rear, and so on opposite when the right turn is chosen on turn signal switch. The turn signal indicators on the dash normally run off the same circuit as front turn signal bulb only which is also controlled by turn signal switch. Front has turn signals but no brake light.
I think there is an additional load on the left side rear turn circuit and it could be either a wire that is shorted or the turn signal switch if the same bulb element is used for both functions.
Often times if trailer lighting is connected the flasher will also blink a little faster because of the extra load of additional bulbs.

Feb 15, 2015 | Cars & Trucks

1 Answer

Just replaced fuel pump now rear lights are goofy. If the engine is off the rear turn signals work fine but no running lights. With engine on, the left turn signal causes both lights to blink rapidly with...


YOU HAVE A BAD GROUND FOR FLASHERS OR FRONT YTURN IS OUT AND RUNNING LITES HAVE FUSE GOOD LUCK LOOK AROUND FUEL TANK FOR TORN OR PINCHED WIRES

Oct 06, 2011 | 1998 GMC Sierra

1 Answer

Neither left or right turn signal works on my 1990 GMC Sierra. Brake lights do work. Can you make a recommendation?


Have you tried replacing the turn signal flasher? This is usually a small metal can a bit more than one inch in diameter and one inch tall, located with the fuses. It plugs straight in. You can buy them at any auto parts store. I think on this truck it is located under the dash on the driver's side, in front of the door.

Apr 28, 2011 | 1990 GMC Sierra

1 Answer

I have no right side turn signals on my 02 gmc sierra fuses are ok. all my lights work fine. just stoped working


try the turn signal flasher or it could be the turn signal wire harness in the sterring column

Mar 04, 2010 | 2002 GMC Sierra 1500

2 Answers

Rear turn signals and brake lights out. Front signals and rear tail lights work fine.


the brake lights and the rear turn signals should be the same bulb check the bulbs to make sure they are not blown does your third brake light work if all brake light are out and the bulbs are good check the brake light switch on the brake pedal

Nov 04, 2009 | 1986 GMC C1500

1 Answer

No brake lights, or no signal lights


brake lights and turn signals work off the same curcit, it could be the fuse or the brake light switch !!!!!!

Jun 05, 2009 | 2000 GMC Sierra

1 Answer

1993 GMC Sierra 4x4, no brake lights, no rear running lights


If you still have this problem maybe this will help. I had to replace the trailer plug on a 93 GMC Sierra K1500 and had a problem with the light's not working. Had to trace wires from trailer plug up to tail lights. The problem was a broken ground wire. It took longer to remove all the tape and replace it than fixing the problem.

Dec 15, 2008 | 1993 GMC Sierra K1500

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