I hate asking people to help diagnose a problem online but I need help. I've got a 01 QC 4.7L 4x4.

I recently tried to turn my AC on and I heard a pop - it ran for about 1-minute then immediately the fan (blows the air into the cab) stopped. I then turned off the AC switch and tried to switch to heat... the fan blower thingy still didn't work.

I have checked fuses and even replaced the AC/Heater fuse but nothing seems to work.

I should also mention that my truck now idles higher roughly about 1500rpm...even when it's warm.

Any guesses? I tried searching for previous posts but couldn't find anything.

Thanks so much!

 

vaccum line sounds like came loose
do you hear any funny sounds under the hood? like air getting sucked into a straw