Chevy & GMC Vans

Been having problems with my 90 SAFARI wiper switch for the front windshield for too long and getting anxiety from it at times. Just about gives me road rage when it won't turn off, LOL. Changed the module out with a couple different "Used" and no change. Has anyone ever removed the steering wheel and looked to see if dirty or worn contacts will do this? Probably worn out but kind of sick of spending money when your close to being broke and finding thats not the problem. But then again its cheaper than getting a ticket or an assault charge during road rage. Lmao.

I've had the wires break in the harness from the stalk to the column.

Can't say this is your problem though.
Just a thought.