So the wipers on my 88 GMC Jimmy, sort of work but not quite right. I have the seria classic model that came with the wiper delays. Whan I turn them on they go on, the low and high speed setting work, the delay settings do not work. Whan I go to shut them off they will not shut off unless I hold the mist setting on. If I let go of the mist setting half way through the wipers stop in the middle of the windshield or whear ever I let go. The wash setting is the same. It will go on but not shut off untill I use the mist setting. Has any body had this problem? If so how can I fix it. I hope it is not a wiring thing unless it is fairly straight foward. Thanks for the help. 88 GMC Jimmy 2in tuff country, chrome wheels for the speed.