I'm replacing an A/C compressor, dryer, and orifice (or valve)in my 1999 T&C because the old one seized up. After I flush and vacuum the system do I add oil to the compressor or should I do it before I install the compressor? If I do it before I install it won't the oil be vacuumed out?[/align]Another question I can't find charts for the high and low pressures by temperature. Could you give me a range for the high and low side psi at a temperature of 75-80*?[/align][/align]Thanks Tom[/align]

 

Another question, the valve on the fire wall has a bolt holding on a bracket that holds in the lines from the engine side. I don't see what holds the valve to the fire wall ,or on the lines that come through the fire wall. The valve couldn't just push on those lines and stay there. What am I missing? What holds it to the fire wall and the lines coming through the fire wall?[/align][/align]Thanks again[/align]

 

Well I got it all installed and had a leak at the dryer. I changed the o ring and it still leaked. I tried different o rings but they all leaked. I was using universal o rings that come in a kit all sizes. I think I need a small thicker one than this kit had so I will look tomorrow. I will never do this again in a mini van, way too tight and hard to reach. I had to remove so many parts to reach the firewall components. PITA[/align]

 

Hehe I would have done it for ya I live in the ATL area and yeah its a bear.
/C PERFORMANCE TEMPERATURES AMBIENT TEMPERATURE 21°C (70°F) 26.5°C (80°F) 32°C(90°F) 37°C (100°F) 43°C (110°F) AIR TEMPERATURE AT LEFT CENTER PANEL OUTLET 1-8°C (34-46°F) 3-9°C (37-49°F) 4-10°C (39-50°F) 6-11°C (43-52°F) 7-18°C (45-65°F) COMPRESSOR DISCHARGE PRESSURE AFTER THE FILTER DRIER 1034-1724 kPa(150-250 PSI) 1517-2275 kPa(220-330 PSI) 1999-2620 kPa(290-380 PSI) 2068-2965 kPa(300-430 PSI) 2275-3421 kPa(330-496 PSI) EVAPORATOR SUCTION PRESSURE 103-207 kPa(15-30 PSI) 117-221 kPa(17-32 psi) 138-241 kPa(20-35 PSI) 172-269 kPa(25-39 PSI) 207-345 kPa(30-50 PSI)