When I start my car it makes a loud squeeling noise. My belts are tensioned right, my starter is fairly new, so could the alternator be a problem, because thats where it sound like its coming from.

 

It could be but alternators usually whine if anything

Put something long & hard on it like a hammer and put your ear on it, youll hear where its coming from

 

squeeling wouldnt that be a belt?

 

well drive around and if you start to have problems like abs light (or airbag light i can't remember) and your headunit/cdplayer turns off and on randomly well then it prolly is your alternator...i dunno this is what happen to me so...

 

sounds like belts, does ti go away after warmed up?

 

mine squeals for a second right when it starts up on 1st crank.. i think its the starter...