High pressure AC port location

Tiny
EGUNS80
  • MEMBER
  • 2000 BUICK CENTURY
  • 2WD
  • AUTOMATIC
  • 104,000 MILES
Where is the high pressure AC port on my car listed above? I cannot find any diagrams online.
Wednesday, September 12th, 2018 AT 3:15 PM

4 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good evening.

It is on the small line which is the high side. It is located by the dryer assembly. I attached a picture for you to view. It is to the left of the number 1.

Roy
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Sunday, April 25th, 2021 AT 12:20 PM
Tiny
STEVE W.
  • MECHANIC
  • 13,577 POSTS
As a followup, what is the reason you wanted the high side port? Do not attempt to charge the system through it. If the compressor is working the high side pressures can easily blow up the common small cans.
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Sunday, April 25th, 2021 AT 12:20 PM
Tiny
EGUNS80
  • MEMBER
  • 78 POSTS
Not doing it with a can, my buddy has a Robinair machine that does it.
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Sunday, April 25th, 2021 AT 12:20 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Just to reinforce what Steve said, do not charge through the high side unless the engine is not running. If you charge it through the high side with the engine running you will destroy the compressor.

Roy
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Sunday, April 25th, 2021 AT 12:20 PM

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