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Squeak when A/C is on

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Old 11-26-2012, 01:57 PM
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Default Squeak when A/C is on
My 1996 Civic often makes a short squeaking noise when the a/c is on and I release the accelerator pedal at 4,000+ rpm. This happens even if the engine is in neutral gear. I don’t think it’s the a/c belt because as far as I know the belt turns even when the a/c is off. Could it be the a/c clutch perhaps? The car has a B16A2 engine.
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Old 11-26-2012, 02:01 PM
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Default Re: Squeak when A/C is on
Replace and tighten the A/C belt. Then go from there.
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Old 11-26-2012, 02:21 PM
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Default Re: Squeak when A/C is on
Why would the belt only squeak when the A/C is on? Would I have to refill the system with refrigerant after changing the belt? Thanks.
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Old 11-26-2012, 03:06 PM
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Default Re: Squeak when A/C is on
Originally Posted by lithium_mt
Why would the belt only squeak when the A/C is on?
It's the only time when the compressor clutch engages and places force on the belt.

Would I have to refill the system with refrigerant after changing the belt? Thanks.
Only if the refrigerant charge is low.
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