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    Restricted operation with Engine knock

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

    Restricted operation with Engine knock

    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.

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