Railguy

The heater fan in my ram truck has only high turn it down one click it tunes completely off all positions other then high it's off . I guess I should check fuses first but I thought I would ask here first.
Railguy

1970cs

I would highly speculate the blower motor resister.

Pat

Railguy

So could the resistor be replaced or would it require a new motor?
Railguy

1970cs

Here is a youtube video on how to replace it.

Pat

Railguy

Good video. I would have been looking under hood. I just turned the key on and put the blower on a speed that didn't work . Then I wiggled the connector on the blower motor resistor. It started working right away . I checked all the speeds and they all work . I m hoping it was just some corrosion on the plug. I ll leave it a lone for now. If it happens again I ll clean it better but at least I know where the problem is.
Always check CO first . Thanks
Railguy

1970cs

I am glad we got you barking up the right tree!

Pat