Air Conditioning and Coolant
Chevy Silverado
Buick Regal

Where do you add refrigerant in a 1985 buick regal?

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Wiki User
March 14, 2011 10:07PM

under the hood there is a large silver cylinder with a tire stem type adapter there is a cap just like the ones on the tire remove that and attach your filler tube there start the car and turn on the AC on max to fill.