winshield wipers gone nuts

[manyholes]

hey guys, was running the truck in the mountains in BC and it started to overcharge, tried to make it to the next town, spiked to 18+volts, trailer brake in the truck started smoking, shut the truck down , fried a pile of electrical, trailer brake, pump soleniod, all lights . had to pull the fuse on the wiper motors because they are stuck on. changed out the voltage regulator, batttery, cleaned the engine and body ground, fuel soleniod, truck is running good now less wipers. any input would be apreciated thanks

[Hansen01]

mine did that a couple times, but never burned up any wires, man do those wipers really go

[manyholes]

so is it the switch or?? havnt opened up the motor but i know on my old chev there was a microboard that would fry

thanks

[manyholes]

well the rain let up so i dug around a bit, intermitent wiper relay is fried behind the ashtray. wipers now work, just all or nothing, partstore tomorrow lol. at least it beats having to pull a fuse the last couple of days

[Hansen01]

haha good thing you figured out what it was, cus never fried it, although when i turn them on sometimes the swipe more times than they should, could that also be that modual?

[manyholes]

wouldnt be able to tell ya, someone with more 1st gen electrical knowledge might chime in on this tho