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strange whistling noise in cab

Discussion in 'Technical Chat' started by Cobra6, Jun 29, 2010.

  1. Jun 29, 2010 at 9:51 AM

    Cobra6 [OP] Well-Known Member

    Jun 23, 2010
    First Name:
    Tennessee Valley
    '06 PreRunner SR5 TRD Sport
    I have a strange whistling noise I hear inside the cab.
    I have an '06 D-Cab, Prerunner, SR5, Sport - 50K miles
    After I have been on the road for 1.5 - 2 hours with the AC on, I get a strange whistling, wheezing noise that lasts about 4 - 5 seconds, and it will re-occur every 20 - 30 seconds.

    It almost sounds like the system is having trouble breathing - I just order a cabin air filter replacement - is this the problem?
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