ifeliciano

Does Acura have a specific R134a refrigerant pressure chart or are the generic ones floating around the net ok to use? Also what should the static pressure be in a "normal" 3rd gen TL A/C system (A/C not running).

Turbonut

iTrader: (1)

Not really certain as to the static pressure as that is also ambient temperature dependent, but I'd say @ 90. Our '11 Turbo Kia was @ 100, at least that's what it read when I replaced the compressor, hot day.
The chart looks like normal values, but when the car was running (Turbo Kia again), I was able to get colder temps out of the system than what the chart indicates, but it's good for a reference.
Personally if doing the system over, I'd discharge, evacuate then add refrigerant by weight so one can know the correct amt. in the system.

ifeliciano

Thanks. Its about 67°F with 80% RH today so I got the pressure to low 25 and high 140. Enough to get the AC to cool. I'l probably have to replace the compressor later this year. I've already replaced a clutch and coil on it.

Turbonut

iTrader: (1)

Might want to get a stick thermometer and use it in the vents to check temp.

ifeliciano

43° to 44.4° at the vents, got to recheck on a warmer day.

csmeance