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Old 06-05-2010, 07:12 PM   #1
medium1
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Default Is the AC clutch supposed to cycle?

Is the AC clutch supposed to cycle on and off on a 2000 sl2 or is it a variable compressor like the V5 compressor?

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Old 06-05-2010, 08:18 PM   #2
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Default Re: Is the AC clutch supposed to cycle?

In one word, no.

The Saturn compressor is a variable displacement rotary vane type pump. The rotor assembly houses five lightweight vanes that extend outward contacting the cylinder wall creating the compression area. The compressor has an internal control valve that allows it to change its pumping capacity or displacement, reacting to heat loads on the air conditioning system. The range of displacement can vary from 5 percent (5.5 cc) to 100 percent (110 cc). The compressor's natural or resting state is at minimum displacement.

...
*The CPS is the heart of the entire EFI system. No cps = dead EFI system*
*There's more to a/c than just a few cans of refrigerant*
*There's more to brakes than just replacing parts*

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Old 06-05-2010, 08:21 PM   #3
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Default Re: Is the AC clutch supposed to cycle?

Saturn AC compressor clutches don't cycle with normal operation.

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Old 06-06-2010, 01:18 AM   #4
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Default Re: Is the AC clutch supposed to cycle?

A likely cause of cycling a lot is a system that is low on refrigerant. A manifold gauge should be able to tell you if that is the case; Richpin has a video on s-series a/c troubleshooting on youtube that you might want to check out.

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Old 06-07-2010, 08:08 PM   #5
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Default Re: Is the AC clutch supposed to cycle?

its low on refrigerant. easy fix, but use gauges to make sure it has the correct amount in the system.

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