tbirdtbird wrote: ↑Mon Aug 01, 2022 7:44 pm Have to wonder what brand of gauges this was

Yellow Jacket by Ritchie, (not cheapies) they’ve served me well for a few years now.

tbirdtbird wrote: ↑Mon Aug 01, 2022 7:22 pm We assume of course that you had the high side handwheel closed when you did this test

Both high and low hand wheels were closed.

Mystery solved. I went out today and made sure my gauges were at 0 and connected only the low side and pressure read 35 on the low side gauge but slowly the high side crept up to 35. It appears my gauges are leaking internally causing high side pressure to leak over to the low side gauge and increas...

By the way thank you very much for the help here.

Which question did I miss? I thought I addressed all? I did flush front and rear evaporators when I swapped compressors. Nothing ac related on the firewall, just 2 lines going into the expansion valve then from there to the evaporator. Photo below of drier/accumulator built into right side of conden...

I should clarify the system is cooling some, it will blow about 15 degrees cooler than ambient air. The accumulator is made onto the condenser. Grabbing the line going into the evaporator near the firewall it is cool but not cold and sweating like I would expect. Yes both times I swapped the compres...

No sealer has been added, the system is not overcharged as no Freon has been added in several years. When I replaced everything I added the correct amount of Freon (by weight) and pressures were perfect and none has been added since. Ambient temperature was 94 degrees and high humidity. Rear air was...

165 degrees inlet and 132 outlet on the condenser.

The drier is made onto the condenser.

Several years ago it had low low pressure but high pressure was ok. I mis diagnosed it as a weak compressor. Bought a brand new Denso compressor, condenser, expansion valves. Realized original compressor was fine and condenser was plugged so saved the old compressor. New compressor lasted 4 months a...