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Restricted operation with Engine knock

Discussion in 'LR4' started by Erik Kennedy, Feb 8, 2020.

  1. Erik Kennedy

    Erik Kennedy New Member

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    Our 2012 LR4 5.0 with 75K miles gave us a check engine light and restricted operation. Engine has a knock and throws these codes p0016 p0017 p052a p054d. I'm hoping someone has seen this before and can give me some advice.
     
  2. hickersb

    hickersb Full Access Member

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    Have never seen those codes, but I wonder if that's related to timing chain issues...
     
  3. Strizzo

    Strizzo Active Member

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    Codes have to do with a discrepancy between the cam and crank timing sensors. If you are hearing a loud knocking or rattling while running then it’s probably the timing tensioners and possibly to the point where it’s skipped timing.

    How long have you been going between oil changes?
     
  4. Robbouchard

    Robbouchard Member

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    Knock can also be caused by not using premium fuel.
     
    itiosso and Ratatat like this.
  5. Michael Halladay

    Michael Halladay Member

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    Does the problem go away when you restart your LR?
     
  6. Erik Kennedy

    Erik Kennedy New Member

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    All premium fuel, 7500 mile oil interval on Castrol edge synthetic. It does not go away when restarted.
     

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