"A couple of problems with that procedure: Very little flushing chemical would make it past the restriction of the TXV. So it seems to me that the evaporator, in effect, hasn't been flushed at all. Additionally, if there was any debris in the evaporator, reverse-flushing it with the TXV in plac...

tbirdtbird: I slept on your theory that the low side connector was bad. That seems to me to be the most probable case for what I was seeing on the gauges. The 80psi on the low side gauge was from the can, not the system. From that fact I conclude the following. 1. I did not vacuum the system prior t...

Thanks for you feedback. Your comments about the can and ambient temp are noted. I did flush the TXV along with the evap. Both ways. This is SOP on older Ferraris as TXV access is a dash pull exercise. Many Ferrari owners have done it with success. But I fear you are going to tell me otherwise :?

Thanks for the help. Just ordered a new Manifold Gauge Set. I will flush with naptha if I start over. Pump is almost 30years old. A $250 replacement seems like a no brainer. I do not think old one cratered. Oil was nut brown and no debris found in flush bucket. System has never worked. Condenser is ...

1995 Ferrari 456GT with a brand new Sanden SD7H15 (stock replacement). There is nothing special about a Ferrari AC system as it runs with off the shelf parts from major manufactures. It has an expansion valve/drier and not an orifice tube. The system calls for about 43 oz (1300grams) of refrigerant....