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Thread: Engine stalls when switching on Air conditioner

  1. #1
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    Default Engine stalls when switching on Air conditioner

    Hi guys...For some reason the engine's revs drop heaps when I switch on my A/C to the point where it pretty much stalls right away. The air conditioner works fine if I accelerate while switching it on ( the compressor kicks in ). When the car is cold the auto choke works fine ( not sure if related ).

    Any ideas???

  2. #2
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    immortality is offline crappy ol' VN driver
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    does it die if you switch on the a/c when driving down th road? sounds like the IAC valve needs agood clean and the idle reset. possibly a faulty
    IAC valve
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  3. #3
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    when im driving it doesnt die. just at idle. i was thinking that the throttle body needs a good clean...is the IAC valve in there somewhere? ill try that. thanks mate.

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    yeah, the IAC valve is on the back of the TB and it controls the idle speed
    Body by Holden, Soul by Brock
    the Legend will live forever

    VN exec T5: 15.1sec @92.2mph 1/4 mile, 9.7sec @ 74.6mph 1/8mile, 2.3sec 60ft, 0-60mph 6.827sec 22/11/07 Gtech competition



  5. #5
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    i gave it a good clean and its working fine now. Thanks heaps immortality. i love this site

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