How do I recharge the air conditioning system

Marie Gibson

Asked by May 10, 2015 at 03:28 PM about the 1992 Buick Skylark Base Sedan

Question type: Maintenance & Repair

I have only located one valve does it have a
second and were would it be located

5 Answers

Kelly Mayo

the line going inside the fire wall is the low side,, use that one..

2 out of 2 people think this is helpful.

Unless your Skylark has been converted to R134a it's a R12 system. There's 2 products you can use. Freeze 12 or R12a. Both are drop in replacements for the old, unavailable, R12. You'll use the low side service port located on the accumulator. The accumulator is the large metal can looking thing on the passenger's side of the engine compartment near the firewall. The service port may still have the blue plastic dust cover on it. Remove the dust cover to charge it. HTH. - Jim

3 out of 3 people think this is helpful.
Marie Gibson

Thank you both for your assistance it truly helped

1 out of 1 people think this is helpful.

You're welcome. Glad to help. -Jim


I have the same issue, trying to charge the a/c for the same car using aftermarket r134a cans however I don't see a/c clutch is engaging when I turn on the a/c, without it won't take the gas in, any idea how to engage the a/c?, I tried to short the red and white cable on high pressure port switch but it only engage the clutch for like 2 seconds.

1 out of 1 people think this is helpful.

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