When i start up my car it makes a schreeching noise, im pretty sure its my alternator belt thats making the sound or so ive been told. why is it doing this? ive tried belt dressing and it works for a while. is my belt just loose or does it need to be replaced?

 

Is it loose? Does it need to be replaced?

 

replace both of your drive belts and make sure that they move only about .5 in total for each