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gary

gary 9/16/2011

2003 GMC Yukon XL 2500 SLE 8 Cyl 8.1L

Engine

replaced air cond. compressor. freon escaped thru new hose pressure sensor. what's wrong?

new compressor had 100 miles when incident happened

1 Answer


Jeffrey A. Chuber

Jeffrey A. Chuber 9/16/2011

possible faulty low pressure switch as they are fragile and has plastic body surrounded by metal case.Barely hitting it during removal or replacement of manifold hoses can cause catastrophic failure of sensor or the O-ring seal around the threads can also fail. Hope that helps. Good news is the sensor is pretty cheap and easy to replace. Good luck.

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