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Pressure Modulation Valve ABS axle 3 right

Discussion in 'Kenworth Forum' started by JRBES, Jun 22, 2015.

  1. Jun 22, 2015 #1
    JRBES

    JRBES Bobtail Member

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    Jun 22, 2015
    0
    I have a 2013 Kenworth T800 Pressure Modulation Valve ABS axle 3 right..... computer reads current below normal or open circuit? where is this modulation valve located? Also wheel abs sensors data erratic or incorrect? do I need to change the ABS sensors and modulation valve? vin 1XKDP4EXE2J388252any help would be appreciated GOD BLESS
     
    JRBES, Jun 22, 2015
    JRBES, Jun 22, 2015
    #1
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  3. Jul 8, 2015 #2
    AModelCat

    AModelCat Road Train Member

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    A lot of times inaccurate ABS speed sensor reading comes from an incorrectly adjusted speed sensor. Ususlly they are located on top or the side of the axle housing and read the hub speed. I'd start by checking to see if the wire has obvious damage. Usually you can just push the sensor in towards the hub to reset its clearance. You might have to drive the truck up to 10-20 km/h to reset the light if its on. If it's a sensor that's out of adjustment, be aware that it could be caused by a loose wheel bearing. Modulator valves should be located between the brake chamber and the relay valve. They will have a wire harness plugged into them.
     
    AModelCat, Jul 8, 2015
    AModelCat, Jul 8, 2015
    #2
    JRBES Thanks this.
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