w124 Expansion valve info...

[ps2cho]

I took my 87 260E into a local shop (******** West in Mission Viejo, CA) GREAT PLACE BY THE WAY!! Very honest and cool guys, chatted for quite a while with them...

I took her in for them to find where the A/C was leaking from.
It leaks out after about 1-2 weeks. They charged it and told me they checked all lines, found nothing, but when you pull the carpet back on the passenger side, the lines are a little rusted and there was some "old" dye there which leads him to believe the evaporator is the cause of the leak.

Also, he said that I was getting some odd #'s...50 on the low and 250 on the high side. psi?? He said it should be more like 30-100/150 which could be a blocked expansion valve. The A/C worked (as I knew), but it was not blowing as cold as it should do.

There are plenty of posts about the evap removal...so my question is on the Expansion Valve. Does his psi #'s sound like the Exp valve is the cause of this?