1988 GMC Pickup Sierra 3500 from North America - Comments

I have a question... I bought a 1988 GMC pick up truck and the wipers do not work.

How can I tell if it's the wiper motor or the switch arm on the column?

I have a 1988 GMC Sierra 4x4. I bought it in 1992, and used it only had 45000 miles on it then. 17 years later this truck has 240000 miles on it and it is still going strong. Clear coat paint is finally coming off and she still runs like the day I bought her. I try to take care of my vehicles too. But she was a good truck very faithful to me. These are very good pickups.