2002 Other GMC Models 4 cyl Two Wheel Drive Automatic 120000 miles
due to a brake change that I did myself now my car has the abs light going on and off as well as the brake light. When am driving my car and I make a stop my car goes off as well as when am droving it both of the lights go on and in seconds my car goes off.
Take this to a pro as he will have to scan the truck to see what the problem is. You may have a bad master cylinder. But it could also be just a bad ground as well. A pro can see if there are any hidden problems. Also check to see if your parking brake was not applied and has a loose pedal.