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Would an ac pump squeak whether it's turned on or not?

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It should squeak either way. It is still connected to a pulley and belt. If the condenser is bad it is more of a whirling sound not a squeak. i hope this helps

Posted on May 29, 2010


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1 Answer

Belt squeaking when air conditioner is on

ac clutch could be contaminatd with foriegn material like leaking fluids if not the ac compressor clutch is bad this is located on the the ac compressor

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I have a 2002 Dodge Caravan and when I start the van and turn on the AC a belt starts squeaking and the van runs rough with a rattling noise under passanger side of the hood. Sometimes this causes the van...

did this occour suddenly? if you can get someone to turn the A/C on briefly while your looking under the bonnet and look at the A/C pump. if you dont know what one it is wait untill they turn it on and find which pulley stops turning. because it sounds to me like your A/C pump has seized and if it engages and the pulley stops turning that would confirm it. once you know you can still drive it just dont turn the A/C on untill you get the compresser replaced

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Remove the belt and turn the water pump, A/C clutch and power steering by hand in the direction they normally rotate. You may be able to feel a bad bearing. Does the sound change when you turn on the A/C or Defrost? That would point to the A/C clutch.

I assume you have already tried a new belt, and have cleaned all the pulleys to make sure there isn't something on them causing the belt to slip (then squeak when it catches again).

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Air conditioner belt squeaks. When you turn the a/c on it starts making this awful noise. The tension of the belt is ok(checked )

hallclifford that is a very basic and limited answer. My belt has been squeaking even after I got brand new belts. The answer below is more comprehensive.

Check your belt tension first and the condition of your belt
Second if those are ok start the car and have someone turn the ac on while your looking at your compressor. If its locked up it will cause the pulley to stop spinning creating the noise.
OR we could get way technical here and say you have a crank and cam seals leaking or a leaking power steering pump getting oil on your ac belt.
Check the obvious first and if it still does it I would take it to a trusted mechanic.

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Battery Light On While Driving-Mazda 2003

It does sound like the alternator, plus it's possible the squeaking could be coming from that or possibly the serpentine belt. If you take the alternator to Autozone, whether it's on the car or seperate, they can test it for you for free. If this helps please rate this. Thanks

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well the belt could be loose or the compressor may be seized.....or the belt may be old and squealing.

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Your belt is not tight enough. Are you using the power steering pump to adjust? (right way) or doing something else? Keep tension on the pump and tighten the pivot bolt first.

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Squeaking... pully maybe?

the ac belt is sperate from the power steering belt.. sounds to me you need to replace the belts (both of them) but theres a idler pully in the middle of them all witch may have a bearing going out on it..i had to change mine at about 85,000.. when i had the belts off i spun the pully and it was excessivly stiff cause'n slipage and also a squel.. hope its not the alt, or water pump making the noise..they can run ya into some $$

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