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VY Berlina air con issue

Discussion in 'VY Holden Commodore (2002 - 2004)' started by Goolz96, Aug 20, 2019.

  1. Goolz96

    Goolz96 New Member

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    Hey guys, I’m having issues with my climate control. VY Berlina series 2, so it’s got single zone climate control.

    The controls and buttons themselves are working. But air is only coming out of the demister/windscreen vents. Neither hot or cold air is coming out of the front dash fascia vents or door vents.

    What could be the issue?
     
  2. Trevor loves holden.

    Trevor loves holden. Well-Known Member

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    Fan working? Vacuum lines, selector switch not working, do you hear a vacuum leak when selecting direction. Could be the climate control circuit it self, plug may of fell off. That's a start.
     
  3. Goolz96

    Goolz96 New Member

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    Yeah fan seems to be working fine. Can’t hear any leaks. All climate control plugs including hazard switch plug were all in securely. But it could still be a vacuum reason.
     
  4. Trevor loves holden.

    Trevor loves holden. Well-Known Member

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    To diagnose yourself, you will need a vacuum pump. Under front passenger dash panel there is a vacuum solenoid pack. Disconnect and apply vacuum to each one. There is black hoses and different colours. The different colours hoses go to different actuators, ie face/demist. makes it easier to trace, which line goes where. The coloured lines you need to apply the vacuum and it should hold. If not the actuator or line has a leak. You then go to the solenoid that was not holding vacuum and test it directly. The black hoses, one goes to the vacuum tank-up under the left hand side of the glovebox, the other black hose is the input from the motor. Don't forget to check these. Valve that's in the engine bay right at the back of the engine against the firewall, its in the black line where the 2 black lines join together,
     
    Last edited: Aug 20, 2019

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