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2009 express 6.6l A/C issues

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Old July 10th, 2020, 11:28 AM
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Default 2009 express 6.6l A/C issues

a/c blows warm, when starting the vehicle the high pressure side lines spike to over 100C almost instantly. Put Gauges on and every time the compressor comes on the pressure on high side instantly spikes to 450+ and climbs, maxed out my gauge at 500.

Checked for pinched lines, checked the orifice tube, blew through the condensor and evaporator. Any ideas?
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