Peterbilt sweeping gauges.

Discussion in 'Experienced Truckers' Advice' started by 6wheeler, Feb 23, 2020.

  1. 6wheeler

    6wheeler Road Train Member

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    Anyone know how to fix this problem?

     
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  3. x1Heavy

    x1Heavy Road Train Member

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    You have what appears to be a systematic failure of your wiring system supporting those gauges. There is either a BIG short or source of spiking voltage from either a Dying alternator or something else that spread the electric storm under your dash affecting everything until they burn out. Or burn if you have a hot enough short to ignite something.

    That truck is not to be driven at all until a shop has had a chance to trace each one of those gauges and it's associated wiring, sensors and so on all the way back.
     
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  4. spyder7723

    spyder7723 Road Train Member

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    On the older Pete's there was a big breaker behind the dash on the far left side that powered everything in the cab, including electric gauges. Worth a look to see if yours has it and clean up the connections.
     
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  5. pushbroom

    pushbroom Road Train Member

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    Sweeping gauges mean it is not recieving data.
    Head to the link below and click on the 387 technical manual. There is a section to diagnose sweeping guages.
    Class 7-8 Trucks
     
  6. x1Heavy

    x1Heavy Road Train Member

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    I agree. Just like a twitching body with a headshot. No data no real meaningful activity.
     
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