My truck is using up about a gallon of water a week. Any ideas why? It's an '01 379 with a 475 cat
Is the engine fan switch and the high side switch the same switch? Can they be swapped out?
I think I found the majority of the problem. The relay was bad and the horn relay was bad too so when I switched them out the first time it didn't...
If the sleeper air does not work, will that make the front air freeze up?
I've done that already too. I read a post about replacing the thermostat switch but I can't find one and Peterbilt says there isn't one. Does...
I have a 2001 379. A/c was clicking so took it in for some work. Replaced compressor clutch, evaporator, switch, and o-rings. Now it keeps...
