I'm trying to get the AC working in my 93 240 and I think I have a bad low pressure switch (aka pressostat) at the accumulator. The compressor never engages until I jumper the contacts on the pressostat contacts.
Checked low side pressure and found around 35 psi (compressor should be running).
When I jumper the contacts, the compressor kicks in and sucks the pressure down very low.
I think I need a new pressure switch and probably a recharge on the system.
Or, could it be that there is a blockage on the high side that is preventing refrigerant from getting to the accumulator?
Anyway, I am having some trouble confirming the correct part number for the 1993 AC system (factory R134a).
I see 1343216 listed for 92 and later 940s (R134 systems similar to the one in the 93 240).
Is anyone familiar enough with the 93's to confirm this?
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