I believe 1993 models used R-134A
1993-95 for most.
1994-95 timeframe
If you have a freon leak on the hhr ,have it serviced by gm Is it not under warranty?
R134
Some started in 1992 but most all started in 1993...........
Low pressure port. BTW, it contains no Freon. It contains R134a refrigerant.
You shouldn't have to change freon, it doesnt go bad.
1994-1996 Depending on manufacturer.
The refrigerant they would use is R134a.
Year? engine size?
The 3.8 was built from the 1960s into the 2000s The location of the Refrigerant fittings will vary by Brand, Model, Year and trim level.
Yes. In fact, it's the only refrigerant you can use.