Need help from the experts:

First, I replaced my ACC unit. This got my monovalve working and allowed me to use the "Off" button. Finally, no more searing hot air constantly blowing through the vents.

Next, jumped the cutout wires and clutch will now engage. Placed the wires back on the Pressure Switch and low an behold my compressor stayed engaged for about 15 seconds, then cut out.

So, I think I have a bad switch. I have not been able to take readings on the system, so I can't give you high and low side pressure.

Question is, if my switch is bad, am I looking at a complete evacuation in order to replace it?

Thanks for your help!

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1998 W202 C230 - The money pit of late.
1984 W126 300SD (356,800 miles) Gone to the wrenchapart
1984 W123 300D Gone to the wrenchapart
1972 W108 280SE 3.5 (sold but not forgotten)
1986 Buick Grand National 3.8l Turbo (86k miles)
1966 Glassic Model 'A' Replica http://www.glassicannex.org

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