Clicking sounds from belts or radiator fan? (1 Viewer)

Joined
May 9, 2016
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Atlanta, GA
Following as I have a nearly identical sound/issue. I replaced the valve cover seal several weeks ago and the sound started (or at least I noticed it) shortly after that. Could it be the timing chain tensioner? Also, does the noise go away or decrease after the engine has warmed up?
 
Joined
Dec 10, 2007
Messages
7,506
IME sometimes an intermitant squeaky belt can sound like a bad bearing or something else more serious. Take a garden hose and spray water directly on the moving belts (stand back). If the noise goes away for a second or two and comes back you have the answer.
 
Joined
Nov 9, 2012
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Olathe, KS, USA
IME sometimes an intermitant squeaky belt can sound like a bad bearing or something else more serious. Take a garden hose and spray water directly on the moving belts (stand back). If the noise goes away for a second or two and comes back you have the answer.
He means if it goes away doing that, then it's the belts are not tensioned properly or bad belts.

Once you have the belts off, then spin the idler pulley(s) to make sure they're not rough.
 

plink01

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May 24, 2009
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Mine has made that noise forever and I have never worked it out. It sounds exactly the same and it goes away after a few minutes once its warmed up.
 
Joined
Jan 12, 2016
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Location
Australia
He means if it goes away doing that, then it's the belts are not tensioned properly or bad belts.

Once you have the belts off, then spin the idler pulley(s) to make sure they're not rough.


Also, turn on the AC, if sound goes away the clutch bearing on the compressor needs replacing
 
Joined
Jul 7, 2019
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Location
Camp Verde AZ
Mine has had the exact same noise also for about a year. Only shows up when it gets close to freezing outside and it only last for under a minute. I tried new Toyota belts and new idlers . Pitch definitely changes with the a/c . That’s my next step although here in AZ it hasn’t made a peep until the cold snap we had last week and I’ve ran the a/c all summer with no issues. Almost forgot I even had a problem until then. Definitely waiting to see if anyone comes up with a solution.
 
Joined
Jan 12, 2016
Messages
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Location
Australia
Mine has had the exact same noise also for about a year. Only shows up when it gets close to freezing outside and it only last for under a minute. I tried new Toyota belts and new idlers . Pitch definitely changes with the a/c . That’s my next step although here in AZ it hasn’t made a peep until the cold snap we had last week and I’ve ran the a/c all summer with no issues. Almost forgot I even had a problem until then. Definitely waiting to see if anyone comes up with a solution.

its play in the AC clutch bearing,
when AC engaged, the bearing is out of the question and spins as a solid unit (a bit like my Harley's primary !)
when AC disengaged, any play in the bearing will make noise and probably go away after a bit of heat gets into it

easy to check, remove the ac belt and see if you can wiggle the AC pulley front to rear
 
Joined
May 20, 2005
Messages
1,722
Location
Small Waves, FL
Remove the AC belt (as above) and listen again.

New compressor from RckAuto is about the same price as a compressor bearing.

Mine does this too, but knowing the source, I'm just running it waiting for the compressor to die.

Belts properly tensioned all around.
 

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