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high idle

  1. Engine - 4.6L & 5.4L
    I did the timing chains and added brand new pi cams a few months ago. I cant seem to figure out why I've got a high idle (900ish) at startup. It idled down fine prior to the cams. Did a smoke test and no leaks anywhere. Am I missing something or is it something I have to live with unless I get a...