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blow out

  1. EJ25 - 2.5L Non-Turbo (1998-2010)
    So I'm starting to wonder if this is a common problem with my make. I have a 2009 Forester and so far I've had two spark plugs blow out. From each head!! The first one was driver's side front, tried the helicoil and failed so ended up replacing the head. And now it has happened again on the...