Loud Noise when AC is Turned on

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1 month 3 weeks ago #202547 by userface32
Loud Noise when AC is Turned on was created by userface32
The A/C idler pulley and belt were off for some time. I reinstalled them with a new belt. When the A/C is turned there's a loud squeeling sound.

At first, the A/C belt would turn slowly when the A/C was turned on. I removed the clutch and one of the small washer shims and now it does not seem to slow down though the noise is still there and loud.

Short clip with audio here:


The tension idler pulley is fully extended.

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1 month 2 weeks ago #202588 by pauloil
Replied by pauloil on topic Loud Noise when AC is Turned on
that sounds like a belt noise, or else one of the pulley bearings are bad.

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2 days 13 hours ago #202916 by userface32
Replied by userface32 on topic Loud Noise when AC is Turned on
It turned out to be the Harmonic Balancer that needed to be replaced.

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