2013 587 isx noise with ac on

Discussion in 'Peterbilt Forum' started by wheresthemoney81, Jun 25, 2017.

  1. wheresthemoney81

    wheresthemoney81 Light Load Member

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    Dec 28, 2014
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    Every 47 seconds with the AC on while idealing I hear a noise and vibration it feels like the the radiator fan is going to a higher speed sometimes it's does it quietly. Any ideas what that could be. The AC is working fine.
     
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  3. baha

    baha Road Train Member

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    Jul 25, 2013
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    Open the hood to be sure its not the fan trying to cut on and not finishing before its shutting back off?
     
  4. wheresthemoney81

    wheresthemoney81 Light Load Member

    58
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    Dec 28, 2014
    0
    Fan is cutting on. Its just when it raises the fan speed while idling going to the higher fan speed of feel it and hear it louder than it should be. I'm also in Vegas and its been 115 every day. But I just bought the truck I'm used to Mack and Volvo. I 've driven isx before but the noise and vibration doesn't sound right.
     
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