New sound … AC issue?

New Topics Forums General Discussion 1999 – 2002 Nissan Quest New sound … AC issue?

This topic contains 2 replies, has 2 voices, and was last updated by  labamigo 6 years, 5 months ago.

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  • #1298

    labamigo
    Participant

    2000 Quest with 200,000 miles. Added freon about a month ago. When I am at idle, with the AC “on”, I hear a sound that is like a “revving up”. It “cycles” about every 3 seconds or so. If I turn off the AC, it stops.

    ??

    #4925

    prgonzalez
    Participant

    If you overcharged the system, there is an overpressure switch that will kill the compressor almost as soon as you start the A/C. Check if the compressor is cycling on/off. If could be overpressure in the system. Or give us more information about the symptoms.

    #4931

    labamigo
    Participant

    It was my first attempt to add freon, and it is possible I put in too much.

    The AC cools like a demon; would that be affected by the compressor switching on and off repeatedly?

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