I have a simple question about a problem with the interior fan blower control knob.
The first two speeds settings and the fan does not blow ANY air. The second two speed settings and the fan blows fine. What would be main reason the first 2 speed settings don’t work but the second two work just fine? Is it likely to be the control knob, or could it be in the fan blower circuit itself? What is the proper procedure for diagnosis? Pictures would be nice if you have any.
I agree fan blower resistor pack. In the blower ductwork, you’ll see a small rectangular thing with a connector going to it. 2 screws to remove it. Has 3 coil looking things in the path of the air.
Put up a WTB. I sold one for $5 from a car I was stripping for parts I needed.