squeaky whiny belt noise?
I have a 97 NA 3.8 Olds 88 LS..
just recently put in an ac delco alternator cuz there was some squeaking and a little grinding noise from the old one...
however now with the new one, there is squeaky belt noise... inspecting the pulleys with the belt off, everything seems smooth and tight.. the tensioner pulley, alternator pulley, waterpump, power streeting, a/c compressor..
feels like possibly the belt tension might be a bit loose? however the tensioner spring still feels tight and it still takes lot of strength to move the tensioner to get the belt off?
I examined the serpentine belt and it looks ok, no cracks... it'* got a new waterpump, tensioner pulley and alternator..
Any ideas on how to fix this? the gm factory service manual doesn't have much diagnosis for this...