Peterbilt 389 noise from a/c behind dash.

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Youngtrucker91, Sep 26, 2017.

  1. Youngtrucker91

    Youngtrucker91 Light Load Member

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    Aug 11, 2015
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    Thanks for helping out I'll definitely check tomorrow morning since the truck is at the shop right now
     
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  3. Rackpass 85

    Rackpass 85 Light Load Member

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    Jun 12, 2017
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    Hopefully not the one who messed me over!
     
  4. Tim O

    Tim O Bobtail Member

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    Nov 1, 2019
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    I have the same problem, did you ever figure it out ?
     
  5. jed222

    jed222 Bobtail Member

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    5
    Nov 14, 2019
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    Probably the actuator for a blend door they click when the can’t move the door to the desired position
     
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