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Does your A/C cut out?

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Old Jun 23, 2017 | 02:26 PM
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Default Does your A/C cut out?

'15 Z51 M7

Bought her gently used October of '16

The A/C will drop offline now and then. I can't really pin down the conditions when this occurs. But seems to happen with an quick acceleration or if I don't giver enough gas momentarily while in a too high of a gear for the speed. But not causing her to struggle...say, I'm still in 3rd and at about 10-12mph.

And it doesn't always happen. And some times it'll drop off when the engine is NOT struggling.
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Old Jun 23, 2017 | 02:59 PM
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The A/C compressor is designed to cut off during hard acceleration. I have noticed a couple times that mine cuts on and off even while just cruising along the highway. Then again, so does my central air at home once it reaches designated temp.
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Old Jun 23, 2017 | 03:22 PM
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Could also be low on Freon OR something that happened to me; the clutch arms were breaking leaving only two of the three drive pads to engage. I could never figure it out until the seconded arm broke and I was down to one drive pad. Turned out to be an easy fix once I new what it was.
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Old Jun 23, 2017 | 03:25 PM
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Mine does the same as the OP...2017 GS
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Old Jun 23, 2017 | 03:38 PM
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Mine does the same. I wouldn't worry about it unless it doesn't come back on or the car get uncomfortable.
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Old Jun 23, 2017 | 03:53 PM
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It's normal on all modern vehicles for the compressor to "disengage" and free-wheel once it reaches a designated temp for fuel mileage, as well as when the engine is under a heavy load.
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Old Jun 23, 2017 | 05:19 PM
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Exactly as Foosh said. This even goes back to the days before electronic engine controls when a simple switch controlled by manifold vacuum would open the compressor clutch control line when the manifold approached atmospheric pressure during wide open throttle operation.
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