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Air conditioning pump/compressor

 
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Old 10-12-2010, 04:12 AM
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Air conditioning pump/compressor

Hiya,

My 1995 Prelude has started making a loud "whooshing" sound when I start the car, and when damp I get a screaching when I turn out of my drive, like a loose belt. The loud pump sound comes in when I turn sharply and go to park, or when the car is cold.

A local garage told me my air conditioning pump/compressor (I assume the pump is the same thing as the compressor) is perishing and needs replacing, and that the screach is a loose bearing on the a/c belt pulley.
Even with a/c switched off I get the noises, presumably because I either have to fix the compressor and bearing, or bypass the air con system completely.

Honda wants a grand for a new compressor. Any ideas where I can get a cheaper recon one, or a cheaper part?

Thank you,
Steven
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Old 11-03-2010, 06:59 PM
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Re: Air conditioning pump/compressor

just be a man and get rid of your AC
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Old 11-03-2010, 07:04 PM
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Re: Air conditioning pump/compressor

Well its possibly that it is not your A/C compressor making the noise. You said it happens on sharp turns as well, could be your power steering pump or pulley.

Do you have a mechanics stethescope or long screwdriver? Put the screwdriver handle (very end of handle) up to your ear and touch the blade to the different components when the car is running. Should give you an idea of where the noise is coming from. The noise will get louder as you touch the part where its coming from.
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Old 11-03-2010, 07:47 PM
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Re: Air conditioning pump/compressor

Word... Take the whole AC out, u dont need it.. summer comes ride wit the windows down... Less stress on ya motor = more power!!!! Lol.... and a cleaner engine bay =)
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Old 11-04-2010, 12:12 PM
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Re: Air conditioning pump/compressor

the a/c only uses power when its turned on. if you live in a hot place, keep the a/c. A thousand bucks for a compressor?!! You can find them pretty cheap on ebay or craigslist. The P/S pump makes a ton of noise when its low on fluid, but more like a constant whining sound. I dont know how they sound when they actually blow. The P/S pump belt will squeak if its loose, obviously.

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Old 11-04-2010, 12:32 PM
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Re: Air conditioning pump/compressor

a/c? whats that? -___-
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Old 11-04-2010, 02:33 PM
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Re: Air conditioning pump/compressor

I would recomend just taking out the a/c. But that's also just my personal preference. If that pulley bearing goes, its gonna seize up and break sht. At least get a A/C bypass belt to bypass the A/C but still drive your alterntor while you decide what to do.




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Old 04-15-2011, 12:10 AM
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Re: Air conditioning pump/compressor

How Air Conditioners pump/compressor work?
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Old 04-08-2012, 11:46 AM
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Re: Air conditioning pump/compressor

The compressor is turned by the crank shaft and linked belt and is engaged when you click on the AC in the cab of the vehicle.

1. When engaged, the compressor causes a low pressure on one side and this allows refrigerant vapor to flow into the compressor.

2. This refrigerant then enters a chamber through a port of some sort depending on the type of compressor it is. On this side of the compressor,

3.the refrigerant is pressurized and flows to the condenser where is changed from a hot gas to a warm liquid that is under a relatively high pressure (when compared to the low side).

4.The liquid refrigerant then enters the evaporator coil through a fixed orifice or TEV in the case of most modern vehicles. When it enters the evaporator, it is affected by the lower pressure established in step 1 and begins to cool.

5. When the warm air from your vehicles cab passes over the coil (which is about 40 degrees F +/-), heat is absorbed from the warmer cab air and the liquid boils off to a gas.

Then the cycle continues.
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Old 04-08-2012, 11:55 AM
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Re: Air conditioning pump/compressor

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Originally Posted by johnthompson View Post
just be a man and get rid of your AC
I would but I have kids...

and sounds like you need to change the belt or check your belt tension pulley
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Old 04-08-2012, 12:44 PM
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Re: Air conditioning pump/compressor

This forum is a year to two years old..
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