GottaBeCold88 wrote: ↑Sun Jul 17, 2022 8:40 am After I recover the r134, i was also considering putting in a new TXV. What do you think about that?

I've seen no evidence that your TXV is a problem, sensing bulb installation looks kinda wonky, but there is only one picture. Bulb on the suction line should be completely insulated.

Can you get suction pipe temperature and pressure at the same time? Need to calculate suction superheat to see if the TXV is adjusted close to correct. If you are flooding the suction line with liquid you are loosing performance. If this is the case, discharge line will be abnormally cool, get press...

Infrared thermometer, calibrated finger, whatever works. I meant the low pressure port of the TXV, it's in there trust me, but in order to adjust you have to recover charge and unscrew the fitting, let's hope it's adjusted close by the guys that made this unit. So, there's ~12 feet of #10 size hose ...

I wouldn't Crack open an instrument panel and HVAC module unless I really needed to. Mostly the IP, hard to get it back together properly and not have a mystery squeak or rattle. No need to flush new parts, also no need to replace pressure switches that are good, probably no harm either. If you are ...

drive ratio is diameter of belt on crank pulley divided by diameter of belt on compressor pulley. looks like a nice compressor, Denso competitor to Sanden for heavy truck applications, nice unit. Does the TXV have an adjustment screw you can see, or sometimes it's inside the low pressure port and ca...

70monte wrote: ↑Fri Jul 15, 2022 1:55 pm The low pressure line coming off of the accumulator would sometimes be very cold and other times not cold at all.

Yep, undercharged. My guess is you are right around an empty accumulator. 8oz low.

Best thing to do is have a pro recharge entire charge by weight.

Can you give us more details? Hose sizes you ran to the evap unit? Drive ratio crank to compressor pulley? How did you determine how much refrigerant to charge? What is the expansion device? Is there an accumulator or a receiver? A second evap unit will help total cooling power, but the air coming f...

Sounds like it's just low on charge. Best idea is to take it to a pro and have them recharge to the weight shown on the sticker.

How could the condensing pressure NOT drop when you mist the condenser with water? It's a better heat transfer fluid and it's colder. All I read from that result is "yep, thermodynamics works just my textbook said it does". the airside of any vehicle's condenser can be made better, but tha...

You are getting high side pressure of 215 psi in Arizona, your condenser isn't the problem. Plenty of vehicles would be thrilled with that.

If you really want the high side to be 250, start blocking it off with duct tape, shopping bags, dead birds, whatever, it's easy.