As the vehicle is 2nd Hand and the Model is also old 2001, I didn't find any sticker under the hood, but I searched on the net a found on some websites that dual ac with cool box the capacity is 1200 grams. I didn't replaced the receiver / drier, the, I pull the vacuumed the system for 15 minutes an...

What is r134a Freon Capacity of Land Cruiser 2001 Dual AC + Cool Box. I replaced the expansion valve and filled 1200 grams of r134a Freon. The Suction Line Pressure show 18 at 1000 rpm and 10 at 2000 rpm. The ac is cooling at low rpm but less cooling at high rpm. Do I need to add more Freon? I have ...