How do you repair wiper motor on a 1997 gmc sierra?

Answer 1

The wiper motor rarely goes bad. Request what is called a pulse board. Remove the front panel from the motor disconnect the circuit board (pulse board). Replace board. Place bead of silicone sealent around where panel reseals. You also might want to check with your local GM dealership. There was a recall on many wiper motors for 88-98 trucks because of faulty connections on the printed circuit board. I had the recall done on my 95 even though I had bought the truck used because the VIN had never been in for the recall before.