Ok I am a new owner of a 2006 Dodge Mega cab 4x4. Love the damn thing only the A/C is not blowing like I think it should. After many hours on google and this forum trying to find the cause I am still lost. I already verified that the blend and recirc doors work. Could the only other problem be my Speed switch selector/resistor that is located near the fan be the issue. Thanks for the help.

 

Is the temp cold and just nor blowing with force? Do the fan speeds change on each setting? If so its possible resistor is ba. Oe maybe clogged vent or filter

 

Yes the air is ice cold, and the fand does get louder as I change speeds. There is a slight change in air speed from the vents just not what it should be.

 

I would check the wiring going into the motor with the switch on high and see if you get 12+vdc

If not then you have a restriction somewhere (if the switch is on high speed) and would look at the resistor block. If you have 12+vdc and little air then either a bad motor or blockage in the vent