Failed speedometer when it's cold outside


#1

Why does my 2003 Chevy Trailblazer speedometer stop working when it’s really cold outside? Will this be expensive to repair and what does it involve?


#2

I have the same problem. Usually after about 1 1/2 hours of driving between 60-70 mph it will begin to drop back to zero. If I stop the vehicle for 5 or 10 mimutes it will repond for another 1 1/2 hours. ??? help!