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Thread: CAM oscillation during cruise

  1. #1
    Advanced Tuner projectlnf's Avatar
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    Jun 2012
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    CAM oscillation during cruise

    ok i got my car back up and running and it did this before it blew up also.. so its not a new thing.. but when i am cruising the cams oscillate and i have no idea why.. not by much and not enough to feel any sort of difference in performance. i would just love to know why it does it.
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    2003 Ford excursion 6.0 PSD
    No limit intake
    Straight pipe
    Studded
    EGR delete
    KC billet single plane compressor wheel
    Self Tuned
    XDP Regulated return
    RDP Fuel sump
    AEM progressive water meth
    Custom suspension air bags
    8" lift
    35" tires

  2. #2
    Senior Tuner Iam Broke's Avatar
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    Jul 2009
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    Failing cam actuator valves ( I forget the names of the valves on the top of the rocker cover) Lost mine on the intake side around 30k. When it gets bad enough it'll pop a code and zero out both actuators. Not the cam actuators themselves inside the engine, just the control valves on top.
    '12 Camaro T3 2SS/RS LS3 M6, SLP TVS 2300, Flex Fuel

  3. #3
    Advanced Tuner projectlnf's Avatar
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    Quote Originally Posted by Iam Broke View Post
    Failing cam actuator valves ( I forget the names of the valves on the top of the rocker cover) Lost mine on the intake side around 30k. When it gets bad enough it'll pop a code and zero out both actuators. Not the cam actuators themselves inside the engine, just the control valves on top.
    so i guess i just wait for them to go bad? lol i mean i work at a chevy dealer i guess i could say they "went bad" but is that what they do when they start to go bad?
    2003 Ford excursion 6.0 PSD
    No limit intake
    Straight pipe
    Studded
    EGR delete
    KC billet single plane compressor wheel
    Self Tuned
    XDP Regulated return
    RDP Fuel sump
    AEM progressive water meth
    Custom suspension air bags
    8" lift
    35" tires

  4. #4
    Senior Tuner Iam Broke's Avatar
    Join Date
    Jul 2009
    Posts
    2,305
    Mine did and when the osc got bad enough they zeroed out. After a while it popped a code. Some have luck popping them out & cleaning the screens. Didn't help in my case. Supposed to be a pretty common failure.
    '12 Camaro T3 2SS/RS LS3 M6, SLP TVS 2300, Flex Fuel

  5. #5
    Advanced Tuner projectlnf's Avatar
    Join Date
    Jun 2012
    Location
    warrenton va
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    Quote Originally Posted by Iam Broke View Post
    Mine did and when the osc got bad enough they zeroed out. After a while it popped a code. Some have luck popping them out & cleaning the screens. Didn't help in my case. Supposed to be a pretty common failure.
    mmhmm i see.. i personally havent replaced them in this shop.. but i will see what happens when i replace them! thanks man!
    2003 Ford excursion 6.0 PSD
    No limit intake
    Straight pipe
    Studded
    EGR delete
    KC billet single plane compressor wheel
    Self Tuned
    XDP Regulated return
    RDP Fuel sump
    AEM progressive water meth
    Custom suspension air bags
    8" lift
    35" tires