Air Conditioning suddenly stopped working?

2006 PONTIAC GRAND PRIX

195,000 MILES • 3.8L • 6 CYL • 2WD • AUTOMATIC

JEFF WAHLQUIST

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A/C does not work, it stopped suddenly. I had the refrigerant level checked, that is good, no leaks. I think it could be the pressure switch. My question is, does this particular car have only one? I can find only one. There is none on the compressor or the low-pressure line, only the high-pressure line. The switch I found I cannot get continuity on any of the pins, which is why I think the switch could be bad.

Aug 11, 2023 at 9:11 AM

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STRAILER

CAR REPAIR CONTRIBUTOR
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Here are the high and low side pressure sensors so you can swap them out if needed. I would use a test light at the compressor to see if it is getting power and you may have a clutch coil that is bad. Here are the A/C system wiring diagrams so you can see which wire to test and how the system works. This guide may help as well:

https://www.2carpros.com/articles/car-air-conditioner-not-working-or-is-weak

Check out the images (below). Please let us know how it goes.

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Aug 11, 2023 at 3:55 PM