Why r my tail lights staying on my 1993 gmc Sierra

Dennis Mulford

• 1055 Answers
• Posted on Jun 06, 2009

SOURCE: 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 !!!!!!

SOURCE: 2001 GMC SIERRA . ABS LIGHT STAYS ON

Wheel speed sensors misadjusted, damaged , or metal shavings and other debree, since they are magnetic can give false readings from one of the wheel circuits. Over sized tires can give of false speed readings as well. there are many other causes including bad relay, control module, e.t.c. It is best to have the proper scan tool to diagnose an ABS problem

SOURCE: No dashboard lights or tail lights but I got Blinkers and brakes

most like u have a blown fuse most of the time in cars they connect the tail light and instrament lights to 1 fuse

SOURCE: where do i find a knock sensor a 1993 gmc sierra

Should be on the right side of the engine by the starter.Has a 1 wire connector.It does not go into the cooling system so you can just take it out without draining the coolant.Hope this helps.Good luck.

SOURCE: tail lights not working. fuses

do the front marker/park lights work if not you could have a bad light switch on the tail light side of the switch.you need to check the brown wire at the back of the truck in the wiring harness as this is the tail light wire that feeds the bulbs.if you have power there then you will have to check for power at the socket,if no power at the socket but were you check the wire then there is a problem between the two that you will have to check out.if there is no power when checking the wire then you will have to check for lose of power between the switch and rear wiring.make sure the fuse is good by using a test light and not by looking as sometimes they look good but don`t work.

Testimonial: "Thanks a million!!! problem solved, just a simple loose connection at switched saved me $$$$ from taking it to the shop. thanks for the info!!"