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A/C pressures, performance
Hey guys, I am working on this trucks A/C with an intermittent no cooling concern. My high side pressure will be all over the place going up to as high as 600psi (pegged) when I run it up to 2500 rpm. Then it may go down low to 175psi. I have 2 repeating press... Login to read more. 
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| Engine | 5.3 L |
| Trans | 4-speed Automatic (Electronic) |
Vehicle Data
2004 Chevrolet Suburban 1500 Z71 5.3L
| Engine | 5.3 L |
| Trans | 4-speed Automatic (Electronic) |
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