AC PROBLEMS

kwOH · Aug 16, 2017

So I went out and jumped in the nnbs yukon today, 95 degrees out, and the air starts actin up on me all of a sudden, its blowing warm air from the front vents and a little cooler thru the rear, tried to recharge it and tue gauge says its full. Suggestion on what to check next??

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JML07denali · Aug 16, 2017

Compressor fuse?

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M3kanic · Aug 16, 2017

Make sure that the clutch is working (Make sure it spins)

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kwOH · Aug 16, 2017

@JML07denali
@M3kanic

I believe everything is running right compressor wise.

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kwOH · Aug 16, 2017

Also could it be one of the blend door actuators? Becuz i did notice that my wife had the AC on but had it on dash & floor vents which is not usually where we run it, we usually only use the dash vents.

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kwOH · Aug 16, 2017

So after a little research, to my understanding there are 4 actuators under the dash, 2 that control the drivers and passengers sides, 1 for mainly defrost functions or functions it uses, & one for temperature or the control of flow of hot and cold. So I'm going to try and change the Temperature Actuator, hopefully that will solve my problem. Again any info appreciated.

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PG01 · Aug 17, 2017

And you put the gauge on it and it read full? Those ****** shit ass recharge gauges suck tho.. rally need a good manifold set to read high and low...orifice tubes do get clogged and youll be reading fine pressure but no freon circulating.... i say go after what you doing with the temp actuators then jump under the hood...sometimes with a/c is easier to have someone that really knows the system to diagnose it and then you can throw the parts on..

kwOH · Aug 17, 2017

Galante said:
And you put the gauge on it and it read full? Those ****** shit ass recharge gauges suck tho.. rally need a good manifold set to read high and low...orifice tubes do get clogged and youll be reading fine pressure but no freon circulating.... i say go after what you doing with the temp actuators then jump under the hood...sometimes with a/c is easier to have someone that really knows the system to diagnose it and then you can throw the parts on..

Yep it read full, i even added a little extra just incase, air has worked like a champ since i got it, all of a sudden this happened. Im going to try the actuator, anything beyond that is going to have to be done by someone other than me lol, only real place we have around here is the dealership, so if worse comes to worse thats where she'll go.

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mizzouguy · Aug 17, 2017

Extra can hurt ac performance fyi...ask me how I know lol. My money is on an actuator.

kwOH · Aug 17, 2017

mizzouguy said:
Extra can hurt ac performance fyi...ask me how I know lol. My money is on an actuator.

Im talkin 2 squirts extra, not overfilling, the gauge was from a cheap can of supertech R-134a from walmart, i dont know how accurate those are but the needle was about rt in the middle of the "full" section so i just added a couple squirts to see what it did, barely even moved the needle.

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AC PROBLEMS

kwOH

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JML07denali

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M3kanic

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kwOH

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kwOH

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kwOH

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PG01

kwOH

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mizzouguy

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kwOH

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