Goldie9099

This should be it near the firewall....

I have 1990 LS400. I need to refill freon. Can someone tell me where the low pressure port is on this darn thing? The A/C is blowing hot air and I want to start first by refilling freon. Pls. help it is 97 degress in Arizona!!!

OK, the port works. Once the AC runs for a bit the pressure drops. Added the Freon and almost all is well. The only problem is the pressure is a little high. It's around 40+psi on the gauge. Would I be able to press on the pin and release some pressure? Would that be the proper way to lower the pressure? Thanks.

I have 1990 LS400. I need to refill freon. Can someone tell me where the low pressure port is on this darn thing? The A/C is blowing hot air and I want to start first by refilling freon. Pls. help it is 97 degress in Arizona!!!