SOUNDS LIKE THE BEARING ARE WORN OUT... WELL THAT WHAT I THINK ? IF NOT .. JUS LUBRICATE THE BELT WITH GREASE A BIT WHILE THE CAR IS RUNNING... IT WILL SOVE THE PROBLEM FOR SURE !!!!!!
according to gm it is possibly a problem with the alternator belt pully not being perfectly in line with the other pulleys - use a lazer pen to see if the alternator pully is slightly crooked. - mine did the same thing
my problem came from changing from the gen 3 to the gen v supercharger they block the pcv valve off so i had to run a breather to eliminate it. mine made the noise with the belt off. if yours was like that i would say to check the pcv valve but since yours goes away without the belt thats not it . you checked out most things i could think of make sure there isnt a problem somewhere in the supercharger itself.
hey i have a 95 bonneville with the 3800 series ll motor and i have the same exact noise.. i even have videos..
i replaced the pspump, water pump, alternator, belt tensioner and belt and the noise is still there.. but when i start the car with out the belt the noise goes away.. have you figured out whats making the noise yet.. i still have the noise for 5 months now and its driving me insane.. thanks if you can try to help.. and sorry i cnat help you.
what about your tension pulley? Heres something to try.. wait for the noise to start, then pour a little bit of water on the belts.. if the noise goes away you know the problem is belt or belt alignment oriented. Dont rule out alignment issues.. I replaced my alternator, PS pump, tension pulley assembly trying to diagnose this horrendous squealing I had with a brand new belt.. turned out to be one washer that fit between alternator and alt. bracket.. live and learn I suppose
its not the supercharger bearing i started the car up with the supercharger belt off and had the same noise. also had the alternator checked at alternator shop.
if tension pully wiggles even the slitest bit should it be replaced and how?
ClimberSeeker 3 months ago
never put any type of fluid on your belt. couple comments down the dude is a noob.
stimuncy 4 months ago
run your supercharger belt in the center of the 8 ribs, not at teh back.
woohooskater 4 months ago
@xcalix YES I M SERIOUS TRY IT OUT OR TRY IT OUT WHEN THE CAR IS @ HALT, & ITS NOT @ ALL FUNNY !!!!
ALLYDAEWOO 4 months ago
SOUNDS LIKE THE BEARING ARE WORN OUT... WELL THAT WHAT I THINK ? IF NOT .. JUS LUBRICATE THE BELT WITH GREASE A BIT WHILE THE CAR IS RUNNING... IT WILL SOVE THE PROBLEM FOR SURE !!!!!!
ALLYDAEWOO 1 year ago
@ALLYDAEWOO really? Not funny
xcalix 4 months ago
Its funny I just changed a belt on the same car today.
leafedaduffa 2 years ago
yea man the alternator
chuyvenegas 2 years ago
according to gm it is possibly a problem with the alternator belt pully not being perfectly in line with the other pulleys - use a lazer pen to see if the alternator pully is slightly crooked. - mine did the same thing
mdmcs1 3 years ago
i think its barrings in your superchager
backwash440 3 years ago
my problem came from changing from the gen 3 to the gen v supercharger they block the pcv valve off so i had to run a breather to eliminate it. mine made the noise with the belt off. if yours was like that i would say to check the pcv valve but since yours goes away without the belt thats not it . you checked out most things i could think of make sure there isnt a problem somewhere in the supercharger itself.
1979transam 3 years ago
hey i have a 95 bonneville with the 3800 series ll motor and i have the same exact noise.. i even have videos..
i replaced the pspump, water pump, alternator, belt tensioner and belt and the noise is still there.. but when i start the car with out the belt the noise goes away.. have you figured out whats making the noise yet.. i still have the noise for 5 months now and its driving me insane.. thanks if you can try to help.. and sorry i cnat help you.
displayaplays317 3 years ago
what about your tension pulley? Heres something to try.. wait for the noise to start, then pour a little bit of water on the belts.. if the noise goes away you know the problem is belt or belt alignment oriented. Dont rule out alignment issues.. I replaced my alternator, PS pump, tension pulley assembly trying to diagnose this horrendous squealing I had with a brand new belt.. turned out to be one washer that fit between alternator and alt. bracket.. live and learn I suppose
EdDogg83 4 years ago
either the alternator bearing or the supercharger bearing they go aswell
boriloco76 4 years ago
its not the supercharger bearing i started the car up with the supercharger belt off and had the same noise. also had the alternator checked at alternator shop.
1979transam 4 years ago