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  1. S

    intake pop / electic motor noise underintake manifold

    Sounds to me like sticky IMRC butterflies or a lean misfire popping back up through the intake. What do the ST fuel trims look like?
  2. S

    Another New Member

    New member from Rochester NY. I own a Mark VIII and a DeVille. The Mark is a spotless North Carolina car I bought off Craigslist with collision damage, and the DeVille is a spotless Florida car I bought at auction with blown headgaskets (I own a small repair shop and I'm a licensed NYS dealer)...
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