07 freightliner columbia

Discussion in 'Freightliner Forum' started by frankssemens, Nov 23, 2014.

  1. frankssemens

    frankssemens Bobtail Member

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    Nov 23, 2014
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    I have a 07 freightliner columbia, my tractor abs light just came on and is solid, and two error codes are now showing on the dash (abs 136 and ecu 128 ). Also, when braking for stop signs or red lights ive been losing 25-75 psi of air without using over 20psi to break. Took my truck to a shop and they couldn't figure it out, and im a new o/o so I figured id get more help from this group.
     
    Last edited: Nov 23, 2014
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  3. SavageChopper

    SavageChopper Bobtail Member

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    Nov 11, 2014
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    A quick search revealed ABS 136 = right front wheel sensor is open and ECU 128 is general fault code for coolant sensor, inector, EGR, or temp sensor. With the engine off and foot on the brake, do you continue to lose air at more than 2-4 PSI/min? It could be one of the brake chambers has gone bad.
     
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