Does anyone know the High & Low side ac pressure?

[pacotaco345]

I live in the I.E. of California so it can get pretty hot sometimes... (obviously not now cuz its winter). Anyways my car has a working ac compressor and some pressure and oil in the system but I don't know if it has enough. It doesn't blow cold and I don't want to recharge the system and put too much in there. If anyone has the numbers it would be great.

[OutToWinPAHC]

Not sure but it should be in the FSM, we have links to them in the Ultimate sticky,.

[pacotaco345]

Just checked... nothing.

[Wc240]

then you need to learn how to use the fsm. look under the specification charts, or in general specs/information.

[OutToWinPAHC]

91-94 FSM HA section Pages 51-53 tell you how to compare and diagnose the high and low pressures. Now it doesn't show you were to hook the gauge to, but I think they are marked on the line.

In the understanding the system section it also tell the operating ranges in PSI. And how to remove replace and reinstall almost every part of the system. So the info is there, you just have to be patient and look through it. Now if your looking for how do I test and repair the HVAC system with no experience FSM, then no.

I also just looked at the 1989 FSM which is about the same info but more detailed and it has better pictures and diagrams.