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

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

by in Corpus Christi, TX on May 05, 2014
1 answer 1 comment
ANSWER by on May 05, 2014
It would be easier if we could hear the noise. Do you have someone you trust to help identify the sound.
COMMENT by on May 05, 2014
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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