Luis de Prat

I'm refilling my A/C with R134a and almost made the mistake of connecting the can to the drier, but reading the instructions, it calls that the high line and indicates never to connect the can to the high line.

The service port is supposed to be somewhere between the compressor and the evaporator? Don't have a clue where, though. Car is a 1983 944.

TIA.

Sam Lin

It's a big mystery to me, I've found them all over those lines. On mine the high and low are next to each other on the right side next to strut tower. I've also seen one there and the other up by the firewall, or one there and other down by the drier. You really gotta trace the line and see where yours is.

Sam

t1tec

Was your vehicle converted from R12 to R134a? the two service ports to my knowledge are next to the drivers side strut mount.

If you have R134a they will be quick release type connectors.

t1tec

R134a ports:

Luis de Prat

Well, I appreciate the responses, but thanks to the E-Mail lists (not nearly as much OT over there...) I figured it out.

The A/C service port is on the darned compressor itself. On the original Nippondenso, it's a bear to get to because you have to loosen the compressor on the bracket and swing it, with the added complication of not having the accessory belt tensioned enough to run it...

Fortunately, I converted to a Sanden last year. The port is on the unit as well, but relatively easy to get to. I would have never thought to look on the compressor itself but for a lead I got from the E-Mail lists. Thanks George B!

I put 3 cans of R134a into the system using a fitting from my kit just like the first one pictured and it's running cold now. Problem was a cracked condenser line, but I spent a good couple of hours replacing the condenser this AM. Hopefully everything will stay "cool."

Thanks again to those who responded.