Today I went to a Nissan dealer to install new drive belts on my 2008 Maxima. I had one for the A/C and the other for the alternator. I turned the car on to leave the dealership once I put it in drive and started moving, the car was making very loud screeching sounds for a good 2 minutes and then stopped. I do not hear the sounds when I am driving. Every time I turn the A/C on the screeching sound comes back and doesn’t stop until I turn it off. Could this be because they are new belts or is there another problem? Any suggestions will help!

 

Improper belt tension ...

Return to the dealer and have them address their oversight.

 

 

 

It's either a bad belt, bad tension as suggested, or your AC compressor is dragging a$$. Whatever it is, get back to the dealership and get them to correct what you paid for.