Search found 2 matches

by klittle
Sun Sep 10, 2023 9:14 am
Forum: Automotive Air Conditioning Forum
Topic: 67 GTO and 69 Caprice AC
Replies: 2
Views: 1333

Re: 67 GTO and 69 Caprice AC

If they still have the A6 compressor, recalibrating the POA valve for 134a should help a lot. Older conversions sometimes have too much (or mixed) oil in the system because of the guidelines used 30 years ago. The other thing that can make a big difference on older cars is the fan clutch and shroud...
by klittle
Fri Sep 08, 2023 1:55 pm
Forum: Automotive Air Conditioning Forum
Topic: 67 GTO and 69 Caprice AC
Replies: 2
Views: 1333

67 GTO and 69 Caprice AC

I have a 67 GTO with factor AC and a 69 Caprice with the factory Comfortron AC system. Both had the oil changed years ago and 134 charged to the systems. The GTO had a new compressor and drier. The Caprice had a new drier and expansion valve. No other changes were made to the systems and the POA val...