S SierraBro New member Joined Aug 9, 2010 Messages 1 Reaction score 0 Points 0 Aug 9, 2010 #1 Hello guys, first time here. I was wondering why my 1981 GMC Sierra 2500 4x4, keeps blowing heater motors. I've had to put it direct. The relay and the motor keep breaking for some odd reason. Is there any solution? Is it my fusebox?
Hello guys, first time here. I was wondering why my 1981 GMC Sierra 2500 4x4, keeps blowing heater motors. I've had to put it direct. The relay and the motor keep breaking for some odd reason. Is there any solution? Is it my fusebox?