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Old 12-23-2013, 12:42 PM   #9
likaroc13
Rollin' Old Skool
 
Join Date: Jun 2007
Location: Hattiesburg, MS
Posts: 5,371
Re: chirping/squealing noise

Quote:
Originally Posted by Pine Bark Auto View Post
Are there not 2 idler pulleys? One on the tensioner and a stationary, smooth one. I once replaced the tesioner pulley on my 03 and still had the "same but different noise". Went back and changed the second pulley and eliminated it. Also, didn't happen in my case, but a friend replaced the pulley and bearing only on his tensioner and still had a chirping noise. Turned out his noise was coming from the movement of the tensioner itself and he had to replace the entire assembly. You stated you replaced the tesioner though. Maybe try moving it with a wrench and see if you get a noise. One last suggestion. As another poster mentioned, water or coolant on the belt will make that noise. Check for a possible intermittent coolant leak from hoses, recovery tank, waterpump or intake.
Thanks. Yeah, I need to double check that tensioner assembly. The whole unit was ineed replaced in August, shortly after I replaced the smooth idler pulley. I don't recall seeing any intake coolant leaks. The PO had the intake gaskets replaced when he had it, about 10k miles ago.
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My Build threads:
1966 Chevy C-10 "Black Betty"

shortbed, fleetside, BBW, 327 V8/ Powerglide (under construction)
http://67-72chevytrucks.com/vboard/s...ighlight=betty

1997 Chevy Tahoe, 2dr/2wd, mild custom (Daily driver)
http://67-72chevytrucks.com/vboard/s...d.php?t=601142

Pics:
'66 C-10 https://flic.kr/s/aHsjHWD4h9
'97 Tahoe https://flic.kr/s/aHsjGZ7wKP
'93 C-1500 https://flic.kr/s/aHskxdpdnQ
'88 S-10 Blazer https://flic.kr/s/aHsjYGx4Md

Previous Rides:
1993 Chevy S-10 ext. cab, 4.3L, 4/5 drop (Sold)
1993 Chevy C-1500 short/step Retro-Rod (Sold)
1988 S-10 Blazer 2dr/2wd mild custom (Sold)
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