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Old 04-29-2019, 11:51 PM   #18
sleepertruck72
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Join Date: Nov 2007
Location: Turlock California 95380
Posts: 2,075
Re: 2004 Silverado A/C - Bad Switch or Low Freon?

The low side service port (Schrader valve) is a very common leak area on these trucks. If your A/C starts blowing warm again spray some soapy water on the low side service port...if it bubbles it wouldn't be a bad idea to replace both high and low side fittings
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