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  1. C

    CP4 to CP-ISB21S3 (revised CP3) change for 2021 6.7L Diesel Trucks -- Merged Threads

    It won’t
  2. C

    CP4 to CP-ISB21S3 (revised CP3) change for 2021 6.7L Diesel Trucks -- Merged Threads

    So like everything else, it is a fact finding to see if anything should be done moving forward.
  3. C

    CP4 Changes - to large dimple symmetrical cam version

    Went to dealer and saw new fuel pump for 2021 Sent from my iPhone using Tapatalk
  4. C

    CP4 Changes - to large dimple symmetrical cam version

    Isn’t Ford pump electrically driven. That may equal constant speed, with less high torque application to shaft. The engine driven pumps have a lot of varying conditions.
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