Blazer blower motor mod fail!
I needed to replace my heater core so I figured it's a good time to do the blazer motor mod. All went ok till I turned on the heater blower. It will barely run on low fan speed and eventually come to a complete stop. On med and high it runs faster but makes all kinds of noises. It randomly speeds up then slows down and makes clicking noises.
Almost seems like the resistor is not matched for the larger motor.
Any ideas what might be wrong here?
I wondered why the baseball kept getting bigger and bigger....then it hit me!