Installed new alternator and belts about 2 weeks ago. It doesn't happen every day, but sometimes I hear a squeal for the first couple minutes of driving and then it goes away. These are gator belts ("the quiet belt" yeah... right). Do you think my belts are too tight or too loose? Thanks.

 

They are too loose. Tighten up on it and you'll stop hearing the squeal.

 

That's what I figured. Thanks Deezo!

 

No problem.

 

Better check that tensioner while you are in there. Replace it if you haven't already. My niece just got stranded in her car when the tensioner siezed. Wasn't a Maxima, but it was also making the same noise for the first couple of miles.