Checking A/C Compressor Pressure

Aug 02, 2005 1 Replies

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Tiger 20 years ago

R12 Low is around 40PSI when running... about 90 when engine is off.

R134a is lower... 30to35PSI running and about 70 I think off..

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Bob Lawrence 20 years ago

Can anyone tell me what the high and low side readings should be on a

380sl when the compressor is on and off?

Thanks

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