vitas2

Hi!

I have a 1994 gs300 that seems to be low on r134 refrigerant . I have the proper gauges and need to know the proper low and high side pressures. Will someone please post proper values. I realize that their is a temperature relationship so obviously the pressures will be for a certain temperature range.

Thanks,
Vitas

turbogs300

Low side, around 20-25psi will give you the coldest temps. As low as you can go with the coldest temp at the vent. High side, doesn't really matter unless you have a problem. It shouldn't be above like 250 on the high side. I belive for r134a it's 2.5 times the outside temp.