Problem - signal light relay constantly ticking. Stops when you apply brake.
Tha problem is signal light relay constantly ticking, but goes off when you apply the brake. Now twice tonight ALL guages went crazy, with both the tach and speedo fling all over the place, all warning lights on, and odometer fading in and out...but the truck did not stall out, continued to run fine???
It sounds like you are intermittently losing the ground on your dashboard. Check the ground, or have a good mechanic look at it
Search Chevrolet Blazer Questions
Are you a UK consumer? CarGurus now has a discussion forum in the UK.
Chevrolet Blazer Experts