Pontiac Repair: refrigerant charge quantity on 93 Grand Am, google search, rule of thumb

Question
Hello. I have a 93 Grand am, 3.3 engine, with the refrigerant spec label gone under the hood. Can you tell me the proper charge weight for this car? Thanks so much in advance.

Answer
Hi David:

Sorry I can't help you out on that My service manuals on the net only go back to 1998. You can try a google search or try autozones web site. That car has r-12 in it from the factory. if your retrofitting it with r134a as a rule of thumb the 134 is .8 of the r12 capacity. I would say just taking a guess that car had about 1.5 -1.75 r12.