AND, All the oil must be drained from the compressor, AND 134A operates at a
higher temp than earlier GM
compressors are designed for, AND 134A requires a much larger condenser than
allot of GM's have...
| > The air conditioning on my 1989 Chevy S10 Blazer just stopped working. I
| > hear the compressor kick in but the air blows out warm. I'm thinking of
| > adding in Freeze 12 coolant since it's closer to R12 and less work to
| > retrofit than R134. Has anyone tried this?