Quote:
Originally Posted by 97 SL320
From your post 10, you are seeing 200 PSI on the high while running, this is evidence that the compressor is working. Are you still getting 0 PSI on the low side while running?
Is so, the expansion valve is stuck shut and not allowing freon to enter the evap coil.
Some compressors ( my 97 C280 ) are variable displacement and volume is regulated by looking at low / high side pressure. ( maybe just one pressure I don't recall the details )
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Variable displacement compressors cannot be fully tested by pressures although you can get pretty close. To be completely to spec it has to be fully evacuated and recharged by weight.
Before replacing the compressor I'd replace the expansion valve.
Btw if you do in fact need a compressor I have a brand new Denso 10pa15c in box I'll sell to you less than anywhere online...it's been sitting in my garage after I thought mine was bad and I need it gone now.
Do yourself a favor and go to harbor freight and buy the ac gauge kit it's 50 bucks then you can do all this yourself. 150psi is too low to cool. You'll need closer to 200 before you will feel anything.