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I made a trip to Austin, about a 6 hr drive, from my home this weekend. Outside temps were about 100F.
The trip down didn't notice any issues with the A/C. Seat cooling was good too.
Then while driving around Austin I noticed it would take longer to cool and the seats didn't feel cool either.
I checked the A/C condenser surface area as well as radiator to see if there was any blockage (paper bag, bugs, etc.) Didn't see anything major. Sprayed the surface areas down with a garden hose the best I could.
The trip back the A/C seemed to cool a little bit better but not like usual.
Got back home last night and checked the high/low pressures this morning with my A/C gauge. Outside temps was 90F when I checked it.
The compressor clutch kicks in when the A/C is on.
The first picture is pressures at idle.
The second picture is at 2000 rpm.
The pressures seem OK based on the pressure/temp charts.
The third picture shows a stain on the radiator. Not sure what it is but I'm sure I've seen it before. The radiator was replaced new (Motorcraft) back in late 2018 by the Ford dealership.
Anyone else have ideas? Is it just too hot outside for the A/C to keep up?
A stain on the radiator if it's near a AC hose you have a leak. I can't view the photos. It might be my VPN don't know.Turmed off my VPN and ya your condenser is leaking. You will need to replace that and the dryer. You need to have a shop do this unless you have all the tools. You will need to pull a vacuum test because you don't want to have anymore leaks.
I would say those pressures look fine. Check if the compressor clutch is engaged when you turn AC on. If it doesn't engage but the pressures stay as in the photos, you have a plugged expansion valve.
Looking at the graphs I think I misread it. Based on the outside temp I believe the suction pressure should be higher. to at least 40 psi. Maybe I should add some refrigerant.
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