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Thread: a/c dead
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09-01-2018, 03:11 PM #1Member
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a/c dead
Well after finishing my oil pan job the a/c is dead. Warm air blowing out. 120psi on high side, 60psi on both when neutral. The compressor is turning over. Its not taking any R134A thru the low side. What could be the problem.
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09-02-2018, 02:19 AM #2Veteran
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Black & Blue- '02 WS.6 / '07 Suburban
Your pressure readings are similar to the Honda Ridgeline system I just worked on. Adding 134a just upped the pressure on the low side with no change in cooling. Replacing the compressor was the fix for the Honda.
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09-02-2018, 04:43 AM #3Member
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- Jun 2012
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- florida
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compressor
Was working just fine. Hard to believe the compressor just took a dump
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09-06-2018, 03:02 AM #4Veteran
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Black & Blue- '02 WS.6 / '07 Suburban
That's how it happens. Works one day and not the next. If the clutch on the AC compressor is engaging we know it is not a bad pressure switch. Did you maybe not get positive engagement on the low pressure port with your recharge kit?
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