Not sure how many R/D it has had in its life with the multiple repair attempts. Under my repair I initially installed a new Comp, R/D and Condenser, so just 1 RD. Noticed the diving and constant cycling. I was on the fence about tearing into the dash if not needed, but went ahead and replaced the Ev...

I’m going to start with a new Rec/Drier. This problem has followed two TXV and Evaporators. The constant is the R/D. Then if problem persist, I will order an OEM TXV and install that. I’m back to work for a few days so I will update when I get the new R/D in.
Thanks again.

tbirdtbird wrote: ↑Mon Feb 13, 2023 4:43 pm "after sitting in the sun yesterday for 6 hours the interior of the car was probably 95-100 degrees"

And the ambient was......??

78*f in the shade, probably 90* in the sun. Phoenix AZ.

Thanks John I believe the compressor in your vehicle is the scroll type, which isn't renowned for reliability and longevity. Was the compressor that you installed a rebuilt, new aftermarket, or new OEM? - Brand new compressor, not rebuilt. Is the compressor making any unusual sounds when it's runnin...

I have a 1/2 HP electric vacuum pump. I live in Phoenix AZ and after sitting in the sun yesterday for 6 hours the interior of the car was probably 95-100 degrees. I’ve seen sensing bulbs on AC units and refrigerators be un-insulated, just a discussion point and observation. I insulated with aircraft...

Thanks John. The second thin tube coming off the TXV is a return oil line and not a refrigerant line. - That makes sense. A maximum evacuation reading of 27.5 in.Hg. on your Manifold Gauge Set indicates that you're located at about 2,500-3,000' elevation. If not, did you verify the low-side MGS read...

Ran it in the driveway after letting it sit in the sun all day. 78* in the shade. Clutch cycling on/off every 25 seconds. Vent temp 50*f Engine 1500 rpm. LP cycling between 20 - 45 HP cycling between 110-175 (needle bouncing +/- 10 psi) Vent temp 50*f I feel something is still wrong. The cycling and...

I charge with a 30lb cylinder, and a refrigerant scale. I have a vacuum pump, which for my temp/altitude pulled 27.5”. Vacuumed for an hour.

Got the evap out, which was relatively painless. About 20 min to have the case on my workbench. New Evap and Exp Valve installed. I didn’t add any oil to the Evap, as pointed out I didn’t compensate for that on the initial oil charge. About 2 table spoons came out of the old evap. Vacuumed down for ...

I had wedged the throttle open with a screwdriver and that produced 2000 rpm. The results were the same, but the cycling happened faster. The car is pretty much rust free, and I recovered almost a full charge. I pressurized the system with 250 lbs of nitrogen to test for leaks. The expansion valve i...