Questions and Answers

GMC Serria Brake Lights Q. I have a 1994 GMC Serria, and I can not figure out why the brake lights will not work. The fuse is good, all of the connections are good. But the weird thing is that the brake lights will work for a second or two the first time I hit them, but after that they will not work. Thanks, Zach

A. A schematic would help here! If I remember, I think there is a relay involved in this system. Should be under the hood. If there is no relay, check the brake light switch. I have had the wires break from pedal travel.