AC recharge

2000 BUICK CENTURY
125,000 MILES • 3.1L • 2WD • AUTOMATIC
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EGUNS80
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We have a Robinair 34288 machine at work, I want to recharge my AC and have a few questions. First question is, can you tell me how much refrigerant I am supposed to fill my system to? My second question is, do I refill through high pressure line, low pressure line, or both?
Jul 14, 2018 at 2:30 PM
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ASEMASTER6371
  • CERTIFIED EXPERT
  • 52,796 POSTS
Good afternoon.

You need 2.2 lbs of Freon.

Vacuum it for at least thirty minutes, then with the engine off charge it from both sides. You never charge the system from the high side with the engine running. If you do, it will fail the compressor.

Roy
Jul 14, 2018 at 2:36 PM