Question about A/C smell?

[gbelous]

I was driving home from work and while on the highway the A/C started blowing warm air and then once I got off the highway it started blowing cold air again. But after wards there was a burnt rubber type of smell that I could smell in the engine bay and inside the vehicle.

The temperature is about 100 outside. But I also drove about 40 miles or so and it didn't happen. Is there any way to narrow down what this may be?

 

[Nooby]

I would bet your a/c clutch, mine just went out last week, started by making alot of noise, then burned plastic smell, then no cold/ a/c cluch not engaging, all with in 2 weeks of the first noise from the bearings
easy way to check, is turn the jeep on turn the a/c on, ope,n the hood, the cluch infront of the ac cluch should click on and be spinning with the belt, if not, that could be your problem
any noise?

 

[gbelous]

Not sure if that's it, there was never any sound prior to this happening. And I was looking under the hood and everything seemed to be spinning fine. Plus after it sat a little while the A/C was running really cold when I started it.

 

[kb0nly]

Burnt rubber smell was probably the serpentine belt slipping, could have been due to the A/C could have been due to something else.

When was the last time you replaced your Serpentine Belt and Tensioner assembly?