car is an s4 86 n/a. my belt would used to sqeak frequently...then afer tightening it stopped completely, then it would sqeak again, but not as frequent... the belts arent worn out either... should i just get better pullies, hoping that'll grip the belt better?

 

are you sure its the belt and not the tensioner?

 

it could be that... i thought it was just the alt. pullie so i tightened it. it helped but it still sqeaks...if its the tensioner..what do i need to do to solve this problem

 

make sure all belts are good and amke sure all belts are tight. to tighten the ac/ps belt, what you need to do is loosen the lock nut on the front of the idler pulley and adjust tension by turning the 10mm bolt for each pulle on top of the aluminum accessory bracket. once you get your desired tension, tighten teh locknut.

fwiw, i've had problems with gates belts slipping (even when new) on my 7's. i switched to dayco belts and alll is well. seemed that teh gates belts were stretching too much.

 

Has the airpump been removed?

 

nope...everything is the way it is...nothings been removed...could be that the belts just suck..dayco belts? i might look into that

 

Maybe worth it to check the alignment of the alternator, don't S4's have a narrow mounting boss and use a spacer?
Don't know about Dayco belts...I do know that I had a whiny alt belt (new, but not sure of the brand) that was instantly cured with a Goodyear Gatorback belt.
One time experience so hardly enough to form a Gatorback fan club, just thought I'd mention it.

 

Alternator spacer goes on the aft side.

 

My friend had a noisy pulley on his alternator, tried tightening the belt, taking it off, inspecting, putting back on differently, retightening, bought a new belt and went through all that again. Somehow he never checked the pulley and spacer...

 

once i removed my air pump mine did this due to the blet not being able to spin the water pump. after adding the yoohoo belt everything was great. but doesnt sound like this applies to you but just for future reference

 

gator backs are the way to go. spend the extra 5 bucks and get a good belt. also could check for rusty pully's.