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21/06/2021 5:26 pm
Topic starter
2002 Chevy Silverado Z71. Automatic, 250,000 miles.
Was blowing cold ac a few years ago.
Stopped all if sudden without warning.
I am just now getting around to checking it out. Bought a set of HF Tool gauges, and am reading 24 on low (blue) and about 24/25 on the high (red).
I have never worked on HVAC systems so don't know where to begin. It's hard to see but I believe that the compressor is not spinning and I don't hear the click of a relay when it is turned on.
Thanks,
Dude
1 Answer
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21/06/2021 5:32 pm
Sounds like you're low on refrigerant. The low pressure safety switch is probably preventing the compressor from engaging.
