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Roger Naeger

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Everything posted by Roger Naeger

  1. Roger Naeger
    What does the temperature system lockout mean? Check engine light is on and this is it says to check.
  2. Roger Naeger
    Thank you, Paul The engine was only at an idle when it did this, i’ve Just never heard an engine have so much pressure in it like that.
  3. Roger Naeger
    The egr valve stuck open on my 2014 Mack with an MP8 engine. The engine sounded like it was ready to explode from exhaust pressure. Did this do any damage to the engine? I’ve never heard an engine sound like this!!

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