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Aircon Squeaking

Sol32

By Sol32,
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Sol32 Community Regular

Sol32

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Hi all,

Just today my car started doing this - on switching the aircon on and off, the unit makes a drawn out, high pitched squeal - especially loud when turning it off. Its nothing worth stressing about, just wondering if anyone know what any possible causes would be?

Thanks in advance

Andrew

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Sol32 Community Regular

Sol32

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squeely is most likely the aircon belt.

most of the r ugly poos are pretty old. If they're still running the factory belts, they would have stretched over time.

You can adjust the tension. Or if the adjuster is already at the end, then replace it

Pardon my ignorance, haha but where is the aircon belt - is it in the engine bay near power steering etc or is it behind the dash? Cheers

Andrew

foznice Veteran

foznice

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Pardon my ignorance, haha but where is the aircon belt - is it in the engine bay near power steering etc or is it behind the dash? Cheers

Andrew

yep. The airconditioning compressor is hanging off the side off the side of your block underneath the powersteering.

When you look at the belt, you'll see that it goes around the crank, the airconditiong compressor, and a pulley. The puley is the adjuster, and moves up and down so that the circumference of the belt (and hence tension is changed). You loosen the bolt at the back of the adjuster pulley, and the one that is screwed in from the bottom adjusts the pulley up and down, - hence tension.

Depending on the age of the belt I would probably just replace it. If you don't know when it was last changed, then just change it. Will only cost you about $20. Even if you tighten the belt, once the polyrib belts start slipping (squealing sound) they glaze over a little, and are even more prone to slipping again.

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