Bruce Nunnally Posted August 8, 2016 Report Share Posted August 8, 2016 Mailbag question: Email author said: I have a 2003 Cadillac cts luxury sport 3.2L engine and it has a rocker arm knock how can I stop or fix this Quote Bruce 2016 Cadillac ATS-V gray/black Follow me on: Twitter Instagram Youtube Link to comment Share on other sites More sharing options...
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