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A/C pump will not build pressure

Tiny
TIMVETTER
  • MEMBER
  • 2002 VOLKSWAGEN BEETLE
  • 2.0L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 166,000 MILES
With gauges hooked on, engine running, A/C clutch will engage but there is no pressure change occurring on either side of the system. Static pressure is around 95 lbs. Clutch will activate when A/C switch is pressed and when fan is turned on and off.
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Tuesday, August 4th, 2020 AT 4:21 AM

4 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good morning,

Is that the high and low side readings? Are you using a gauge set?

If the pressure does not change and the pressures are equal, the compressor is the failure.

https://www.2carpros.com/articles/replace-air-conditioner-compressor

https://www.2carpros.com/articles/re-charge-an-air-conditioner-system

Roy
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Tuesday, August 4th, 2020 AT 5:28 AM
Tiny
TIMVETTER
  • MEMBER
  • 3 POSTS
Thanks. I was pretty sure that was it.
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Tuesday, August 4th, 2020 AT 8:53 AM
Tiny
TIMVETTER
  • MEMBER
  • 3 POSTS
Pressure was equal on high and low sides with gauge set.
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Tuesday, August 4th, 2020 AT 8:54 AM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Okay, thanks. I would replace the compressor, dryer and evacuate and recharge the system.

Roy
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Tuesday, August 4th, 2020 AT 9:02 AM

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