Thrumming sound.
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Tuned
Joined: Aug 2004
Posts: 499
Likes: 20
From: Laguna Hills and Payson
Thrumming sound.
Stock 2005 Excursion Eddie Bauer 6.0....
I'm in Michigan halfway through my yearly trip around the country and my truck just started... Sometimes... Making a deep thrumming sound and vibration when accelerating and when I get off the throttle fast.
Intermittent.
Weird.
Any ideas?
I'm in Michigan halfway through my yearly trip around the country and my truck just started... Sometimes... Making a deep thrumming sound and vibration when accelerating and when I get off the throttle fast.
Intermittent.
Weird.
Any ideas?
Tuned
Joined: Sep 2018
Posts: 385
Likes: 19
Rear driveshaft related
I think that that sound is related to the rear driveshaft. It could be the early stages of a u-joint getting tight and needing replacement. It could be a loose bolt on the driveshaft to transfer case adapter. Or it could be the rusty old driveshaft is out of balance because it lost a weight.
Mine does it over 67 mph. Approximately 4 times faster than wheel revolution speed.
Mine does it over 67 mph. Approximately 4 times faster than wheel revolution speed.
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