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I have code P2647 on a 2000 Camaro Z28.

What is this code and what is the fix for this code?

The engine is making a loud lifter noise when starting.

  • I know you have looked at it and read it but can you reverify the code. Three different code guides including my snapon's show P2647 as unique for a HONDA (rocker arm actuator). The LS1 does not have this type of valve train. – spicetraders Aug 31 '16 at 18:37
  • Please re verify the code you posted. – Moab Aug 31 '16 at 20:17

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