A/C wont blow sometimes

[BDW]

Sorry guys, I was on here the other day and found a thread on this but today I cant find it. My problem is sometimes the fan motor for the ac will not come on. I have noticed that when this happens, the light for the compressor is on and stays on no matter if I turn the ac off. While this is happening, I can feel cold air coming out the vents when at hi-way speed. The thread I was looking at, pointed to something in the steering column. Can someone get me back to that thread or tell me what is wrong?
This is on the 07

 

[Bob4x4]

First thing to check is the blower motor. It is under the dah on the passenger side. Give it a tap,it may start. from there if it does not come back on start testing

 

[p-Bar]

I will interpret for Bob, dah= dash, and while the truck is running with AC on use a test light at the motor and see if you are getting power to it.

 

[JohnsonG]

Mine was doing the same thing.



The blower motor connector was toast. Had power and good ground there, but one of the female blade connectors was sprung



I soldered on some new female blade connectors as a quick fix and it now works fine. .

 

[BDW]

Update
It finnally quite and was able to chase it down to the blower motor connector on the motor its self.

 

[rashwor]

I had this exact issue a few years ago and hunted relentlessly until I finally replaced the blower motor. It is a fairly common problem on 3rd gens and I bet it is your problem as well.