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Old 05-23-2011, 11:57 AM   #1
KazuyaIB
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Join Date: Oct 2009
Location: Dallas
Posts: 43
A/C Pressure build up

I have a 86 chevy that just is possessed and does not want A/C. If i turn on the truck and let it idle with the A/C on, pressure builds up and the compressor begins to spit out the excess pressure through the safety valve. I am wondering if it is a wiring issue or just the evaporator needs a fan. Never have had an issue of this kind. Pretty stumped.
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