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A/C high-pressure line

Tiny
SERVERJON
  • MEMBER
  • 2015 NISSAN ALTIMA
  • 2.3L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 130,000 MILES
I installed a new high-pressure line, and I’m in the vacuuming stage but when I turn on the vacuum, the gauges continue to read 0 after a few minutes and it looked like it was almost instant online.
Monday, April 11th, 2022 AT 3:46 PM

1 Reply

Tiny
STEVE W.
  • MECHANIC
  • 13,443 POSTS
Test the pump and gauges by shutting off the valves, does it read a vacuum then? How long was the system open or empty? If only long enough to change the line, I would check that it isn't leaking. Normally a pump will run maybe a minute at most before starting to show a vacuum.
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Monday, April 11th, 2022 AT 4:07 PM

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