Q: My mechanic installed a new fan belt on my vehicle approx 6 weeks ago. When I first picked up the vehicle the belt was squealing so he lubricated the belt which corrected the problem until a week ago. The belt squeals for a short period of time when I first start the vehicle. I took the car back to the mechanic again today and he said that the belt is installed correctly and just lubricated the belt again. Is it common for a new fan belt to do this?
A: A squealing belt is a slipping belt. When the belt slips it gets glazed. The pulleys may need to be cleaned, a new belt tensioner installed, the alignment of pulleys checked, and now possibly another new belt.