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Ask Gm Tech (Cam) Your Own Question
Gm Tech (Cam)
Gm Tech (Cam), GMC Mechanic
Category: GMC
Satisfied Customers: 1682
Experience:  GM Grand Master Technician 2007. 14 year experience.
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Ac compressor not engaging, if freon is low or too low would

Customer Question

ac compressor not engaging
JA: Have you checked the Freon level?
Customer: if freon is low or too low would the clutch not enguage
JA: What is the model/year of your GMC?
Customer: 2011 acadia slt
JA: Are you fixing your Acadia yourself? What have you tried so far?
Customer: just checking all points that are visable for now
JA: Anything else you want the mechanic to know before I connect you?
Customer: it was serviced a few months ago and was recharged wiyh freon woked great then two days ago it just stopped cooling
Submitted: 2 months ago.
Category: GMC
Expert:  Jared D replied 2 months ago.

Good morning,

So you can see that the compressor doesn't engage when the AC is turned on right?

That is most likely due to low freon- the system has a pressure switch that won't allow the compressor to engage without enough freon present in the system since the freon acts as a lubricant.

Can you see any signs of freon leaks on any of the lines? A leak would look like oily/dusty spots on the AC lines.

Customer: replied 2 months ago.
no signs of a leak but if it weeks of slow leaking were to happen then the freon would disapte and not be visable correct?
Customer: replied 2 months ago.
no signs of a leak,butif it were slowly leaking over a period of time the freon would disapate and not be visable correct?