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2004 Ford Expedition Question: I hear a rattling/knocking noise coming from underneath when I press gas pedal

 

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m7070, Corpus Christi, TX, May 05, 2014, 07:00
 Rookie

Everything was checked to be ok, I have oil and transmission fluid was ok. Theres no noise when truck is on idle.

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    G. T. Service Center (4071 Answers) , Stephenville, TX - (254) 638-3236
    ProfessorG May 05, 2014, 07:07
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     Master

    It would be easier if we could hear the noise. Do you have someone you trust to help identify the sound.

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    m7070, May 05, 2014, 08:53
     Rookie

    I am having someone look at it today, but over the weekend one person said it could be the flywheel and another said the catalyst converter. I wont know until later on today. But like I said it only does this when I press on the gas pedal like something is rattling underneath.

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