Truckers Report Jobs

Find Trucking Jobs

Company Driver Company Driver Dry Van Dry Van Flatbed Flatbed Refrigerated Refrigerated Specialized Specialized Owner Operator Owner Operator
More Trucking Job Searches ⌄ Fewer Trucking Job Searches
⌃

07 Cat MXS 475hp code 290-5 active

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by RUSTBOXF700, Apr 11, 2023.

  1. Apr 11, 2023 #1
    RUSTBOXF700

    RUSTBOXF700 Bobtail Member

    12
    19
    Mar 23, 2023
    0
    Truck came in with engine protect coming on. 07 Freightliner with c-15 mxs. Only codes in ecm were active 290-5 and inactive 290-7. 290-5 had 255 occurrences recently. Performed valve test and all were good except for #6. Removed valve cover and inspected wiring. Found no faults in wiring from ecm to valve. Assumed valve is bad and replaced with new. Cleared codes and drove truck, got back to yard and 290-5 code is already active. Any suggestions on were to go from here?
     
    RUSTBOXF700, Apr 11, 2023
    RUSTBOXF700, Apr 11, 2023
    #1
  2. Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.

  3. Apr 11, 2023 #2
    bjytech

    bjytech Light Load Member

    238
    219
    Nov 9, 2013
    Ohio
    0
    290-5 is open circuit on #6 intake valve actuator, since you already replaced the actuator, and all other wiring seems to be fine, I would replace the plug end that goes into the actuator, they have a lot of issue from the heat and oil they see. Cat repair kit for the plug is part# 366-9748.
     
    bjytech, Apr 11, 2023
    bjytech, Apr 11, 2023
    #2
    Oxbow and singlescrewshaker Thank this.
  4. Apr 17, 2023 #3
    RUSTBOXF700

    RUSTBOXF700 Bobtail Member

    12
    19
    Mar 23, 2023
    0
    That did it, the connector was bad. Thanks
     
    RUSTBOXF700, Apr 17, 2023
    RUSTBOXF700, Apr 17, 2023
    #3
    bjytech and Oxbow Thank this.
  • Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.