how much r 12 do I need to put in my 91 firebird? what is it suppose to be to start with?

Asked by Jun 20, 2017 at 08:23 PM about the 1991 Pontiac Firebird Base

Question type: Maintenance & Repair

3 Answers


R12 hasn't been available for years. If your lucky, your local shop might still have some, but expect to pay some $$$$. Your bet bet is to use the new R134A. Have a pro do the swap for you, too much is involved for the novice.


all are different ,does it have a sight glass?? do you know how to read ac there a problem now?/does the ac clutch kick on??? is it just a little warn??? do you just want to add/top it off??? if so add 1 can to the low side...


R12a is a direct drop in replacement for the old R12 which, if available, is super expensive now! You can buy a recharge kit online at a reasonable cost. But you should have the system leak checked first. Have that done and any leaks repaired before recharging the system. HTH. -Jim

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