Hey guys!
I seem to have a problem with my AC. It works intermittently for some reason?
I noticed it yesterday when I started my truck and turned on the AC it wasn't blowing. So I turned off the AC and drove down the road a bit. I turned the AC back on and still it wasn't blowing but I could feel a bit of cold air coming from the vents.
The compressor is engaging but the blower is not working all the time. I shut the truck off and turned the key on without starting the engine and the blower worked low/med/high/max no problem. I started the the engine and no blower? I tried this several times with the engine running and without and it was hit and miss as to if the blower would work or not?
Any help is appreciated!

 

Probably the blower resistor. It is located near the blower motor.

 

Is it under the dash?

 

Passenger side under dash. It is visible without removing anything

 

Silver,

There was also a bulletin on the door if it is not the resistor as suggested above. Bulletin below.

NUMBER: 24-004-02
GROUP: Heating and A/C
DATE: March 18, 2002

SUBJECT:
Lack Of Air At Panel Vents
OVERVIEW:
This bulletin involves installing a new panel vent door assembly.
MODELS:
2002 (DR) Ram Truck
SYMPTOM/CONDITION:
Customers may indicate that there is a lack of air coming from the panel vents or
that air is bleeding to the floor vents in the panel mode.

 

**UPDATE**
I found the culprit! I took apart the blower and good thing I did. It was full of leaves and pine needles. No wonder it smelled dirty when the AC was on!
Anyway that was not the issue. It is the ignition switch. After cleaning everything out it was still intermittent but I started to wiggle the key when testing and the AC would come on and off if I jiggled the key. So I guess I'm in the market for an ignition switch.

 

The Haynes manual provides an electrical diagram for the ac system. The first component to the system is the ignition switch. I would never have guessed that my problem was with the switch but it was.