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VZ Aircondition

Discussion in 'VZ Holden Commodore (2004 - 2006)' started by 190SV6, Dec 21, 2005.

  1. DavoTheGreat

    DavoTheGreat New Member

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    Do you guys with the stinky air con use it all the time? My aircon is permanently on and never smells... and that was the case in the SV6 and now the SS is fine too, whereas my girlfriend's Astra Classic - she doesn't use the air con all the time and it smells as bad as my socks (and that's bloody bad!).
     
  2. VX_KN079

    VX_KN079 Guest

    You should use your a/c at least once every trip so the seals don't dry out and you don't end up with stale air anywhere in the system ot the ducts.

    I do anyhow and like has already been said, turn the a/c off just before you get where you're going to stop the bad smell and never start with the a/c in r/c mode. Always start and end in fresh air mode with the a/c off.
     
  3. Freddy1333

    Freddy1333 New Member

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    Old thread - again. I have a leaking Schrader valve on the low pressure fitting. Question: is it the same as a tyre valve core?
     
  4. Trevor loves holden.

    Trevor loves holden. Well-Known Member

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    Nope And yes, same principle but much stronger and fatter.
     
  5. Freddy1333

    Freddy1333 New Member

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    In other words - not interchangeable?

    I posted this question in the Wiring topic but probly belongs here: Thanks for the clear pic (of wiring diagram). System has gas 110psi static pressure. AC light on dash comes on Ok but compressor does not engage. Was working well until very recently. Any thoughts? TIA.
     
    Last edited: Mar 24, 2020 at 8:35 PM
  6. Trevor loves holden.

    Trevor loves holden. Well-Known Member

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    You can change them but you will need to do it with a service, they change them both over with a service, low pressure so therefore it wont engage to protect the compressor, so get a service is your only option they can vacuum out the old and refill it.
     

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  7. Freddy1333

    Freddy1333 New Member

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    Thanks Trev. Are you saying that 110psi static pressure (cool day) is too low to activate the system? I checked the static pressure 2 days, earlier a short while after the car had been parked. It was a hot day 38degrees. It showed 320psi and did not engage the compressor. I suspect it's an electrical issue of some sort. There's the pressure switch on the pipe behind the L headlight with 3 wires - 1 goes to the ECU, 1 to the fuel pump and 1 to the MAM on the air intake tube.

    Any suggestions?

    (The low side connector Schrader valve had never been touched previously and showed a very slight leak after removing the coupling but sealed up ok after a minute or 2.)
     
  8. rambunctious

    rambunctious Well-Known Member

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    May be the compressor clutch is not activating. Faulty clutch.
    Mine krapped itself a couple of years ago.
     
    Last edited: Mar 25, 2020 at 11:12 AM
  9. Freddy1333

    Freddy1333 New Member

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    Thanks for the tip. I'll investigate.
     
  10. Freddy1333

    Freddy1333 New Member

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    Question: Even if it's a faulty comp clutch, the radiator fan should still come on shouldn't it? It ain't.
     
  11. Trevor loves holden.

    Trevor loves holden. Well-Known Member

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    Not according to what I linked, the high side needs to be 1500kpa before it switchers on. If your saying its 110psi that's a little over 758kpa according to the chart that's a little high it says 68-101psi if your using a tyre gauge. You say at 38 its reading 2206kpa, according to that the fan should switch on but only if the compressor kicks in, it says if its too high or to low at ambient temperature indicates a faulty tx valve.

    If the fan and A/C relays and fuses and low and high pressure switches are working then it may be the clutch, to test remove the harness and jump it straight from the battery to see if it engages. Is the temperature sensor working ok.
    A good A/C place will be your best bet to diagnose the issue..
     
  12. Freddy1333

    Freddy1333 New Member

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    Thanks Trev. I have proper air con gauge & hose kit. I'll jump the clutch wire to the battery and see what happens.

    If you mean temp sensor at the evaporator working ok? Don't know yet as the clutch won't engage. Stay tuned.
     

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