Z-286speed

I have this chirping sound from either the belt or pully (tensioner pully). Any of you guys that have had this problem could you help me out before i buy a new pully and waste the money.

Hardtop00SS

iTrader: (17)

how many miles on the car? sounds like the tensioner

Z-286speed

I have 76000 on the car, that is what i was going for. Where would be a good place to buy one of these for cheap, i have seen some for 120 bucks or so?

Hardtop00SS

iTrader: (17)

me personally, I would buy it from GM, but you also go to NAPA, Autozone, or Advanced Auto. I would check the prices and then make a decision. You get the part # off it and see how much it is at gmpartsdirect.com. GM parts are usually cheaper there then at the dealerships.

LS1s R US

iTrader: (1)

Just pull your belt off and spin the pulley by hand see it it feels rough. I would try the belt first if it hasn't been replaced because it needs it anyway. These belt sqwill every time it is moist outside. When I put belts on I have to pull the tensioner up further usually because the belt is so streached! So I would try the belt first!

Z-286speed

Thanks guys, the belt was replaced around 20,000 miles ago. I will try out that website and replace the pully, I am almost positve that is the problem.

ncd1966

iTrader: (2)

might be a bird trapped under the hood j/k my car was doing that and it was the belt

Turo

iTrader: (23)

My car has a chirping sound for about 10 seconds after shutting down the engine. Im pretty sure its coming from the fans (they're the only thing still moving after shutting down the engine). While its running, I imagine its there also but my exhaust is too loud to hear it.

Z-286speed

It drives me nuts, because it will only do it when warmed up, which in that case i would imagine its the pully. My brother made a smart *** remark about I have a bird stuck under the hood, but at least my axle is not blown like his.

HOSS

iTrader: (12)

my ac pulleys went bad, caused some horrible chirping, if the tensioner pulley doesn't do it, check down below, may be the same problem i had

Z-286speed

I have looked at many places, is there any place that replaces all pullys in one package, not just the crank pully and the tensioner?

HOSS

iTrader: (12)

don't think so, NAPA has accessory drive belt stuff, but the a/c pulley i had to get at chevy place...

Z-286speed

Well, it looks like i have something to do this weekend. Thanks for all the responses!

sleeperstyle

iTrader: (4)

same problem here, only when the car is cold though but it sounds like it is coming from the tensioner/pulley.

update this thread with results and/or a fix. tia

Z-286speed

Ya, that is what i am talking about, its the pully in the tensioner. I should have it fixed here by friday.

rich Z

I agree just take the surpentine belt off and turn by hand all the pulleys. You could by a new pulley or first try repacking the bearings on the rough turning pulley. I had my ac pulleys making a lot of noise and repacked the bearings and now all quiet. Take the pulley off and spray some carb cleaner and use a metal brush to clean them. Then take the smallest size flathead screwdriver and remove the pulley seal, be very careful not to damage the seal. Then get your carb cleaner again and clean. Next take some bearing grease and reback the bearings. One tip is to spin the pulley on your finger and if it's not spinning smooth then add more gease until it is. Reinstall the seal and pulley. I just saved you from having buy but a new pulley.

Z-286speed

Thanks Rich Z, i might just have to do that and not spend the extra money. I put new seals and bearings in last week on a 383 timing cover. Should not be too bad.

robertbartsch

I had this problem for a long time.

Take of ALL the tensioners/pulleys - including AC.

Clean them with brake cleaner and spray them with sylicone.

Buy two new belts.

Tighten the crank pulley bolt.

That should cure the problem....