Ok, yesterday I noticed a burning rubber smell, not too bad, just thought it was the car in front of me. This morning, again, then this afternoon on my way home from work, the A/C goes warm and the smell comes back really strong. I get home, remove the serpentine to check all the pulleys, and the A/C compressor pulley kinda wobbles. Problem located, now, my question, 12 year old truck, just change what's broken? Or replace whole compressor? Which is easier? Thanks for any advice guys... ...