2013 386 low coolant dash light on

Discussion in 'Peterbilt Forum' started by Jlbpaxton, Jul 2, 2019.

  1. Jul 2, 2019 #1
    Jlbpaxton

    Jlbpaxton Bobtail Member

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    Jul 2, 2019
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    Blew a coolant hose. Fixed. 2013 Pete 386 Cummins 525 isx. No diagnostic codes now but had spn 111 fmi 18 low coolant when hose blew. Large (bigger) low coolant light shows on dashboard. Coolant is full! engine is fine but seems like truck thinks coolant is low.
    No diagnostic codes now. Replaced sensor and wiring to sensor is fine.
    Is there a way to clear the low coolant dash warning light ??? Thanks. Jeff
     
    Jlbpaxton, Jul 2, 2019
    Jlbpaxton, Jul 2, 2019
    #1
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  3. Jul 2, 2019 #2
    HoneyBadger67

    HoneyBadger67 Road Train Member

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    Tap the reservoir near the sensor to encourage air bubbles to move on
     
    HoneyBadger67, Jul 2, 2019
    HoneyBadger67, Jul 2, 2019
    #2
  4. Jul 2, 2019 #3
    pushbroom

    pushbroom Road Train Member

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    Inside the reservoir there is a floating magnet that the sensor reads. Sometimes it gets stuck and the reservoir has to get replaced. Pull the sensor out of the bottom of the tank and put a magnet to the top of it. If the light goes out it needs a tank.
    Pull the wires right at the plug as well, they get stressed and often break inside.
     
    pushbroom, Jul 2, 2019
    pushbroom, Jul 2, 2019
    #3
    Goodysnap, spsauerland and QUALITYTRUCK Thank this.
  5. Jul 2, 2019 #4
    QUALITYTRUCK

    QUALITYTRUCK Road Train Member

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    Exactly spot on!
     
    QUALITYTRUCK, Jul 2, 2019
    QUALITYTRUCK, Jul 2, 2019
    #4
    pushbroom Thanks this.
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