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a/c problem

This is a discussion on a/c problem within the External Engine forums, part of the LSx Technical Help Section category; Any you guys really know a/c. my cars a/c is not cooling. Static pressure is 80-90. When I run it ...

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    a/c problem

    Any you guys really know a/c. my cars a/c is not cooling. Static pressure is 80-90. When I run it the low is 25psi and the high is 150-200, up and own with the needle. Used a UV dye and see nothing. The system is 134a. Any thoughts?

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    Sounds like you have a set of gauges, so that's a big help. The system pressure is temperature dependent, so you need to know ambient air temp to determine if pressures are within spec. This chart is a good guideline, but it is not as specific as the information in the factory service manual:

    Link: R-134a System Pressure Chart | AC Pro

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