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Rotational erratic thump sound

Number4

"I'm counting to 3, then I'm getting your dad."
Elite Explorer
Joined
March 16, 2013
Messages
4,123
Reaction score
174
City, State
Woodstock, GA
Year, Model & Trim Level
04 Ford Explorer 4.6l
So driving the ‘04 today, I hear this weird thump thump thump sound from what seems like the center of the vehicle. Kinda like the sound made when you bump your hand on the door or body. Only, it was like an arm was tied to the driveshaft and flopping around.

Funny thing, I don’t recall any odd sensations from the vehicle. Both times, it did it when accelerating and stopped immediately when I let off the gas. Giving it gas again didn’t bring the noise back, just happens randomly.
Car runs great. But it’s loud enough when it happens that you want to immediately pull over.
But again, no loss of power, no shaking or vibration.
 




mountaineer2004

Elite Explorer
Joined
October 28, 2014
Messages
341
Reaction score
62
City, State
NYS
Year, Model & Trim Level
2004 Mountaineer (AWD V8)
Could it be something in the tires, or a tree branch or similar stuck somewhere in the drivetrain?
 




Number4

"I'm counting to 3, then I'm getting your dad."
Elite Explorer
Joined
March 16, 2013
Messages
4,123
Reaction score
174
City, State
Woodstock, GA
Year, Model & Trim Level
04 Ford Explorer 4.6l
Could it be something in the tires, or a tree branch or similar stuck somewhere in the drivetrain?
I crawls under to look, but had just driven it so the exhaust was hot. But couldn’t see any foreign objects.
 




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