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Weird noise at 35mph+

797 views 1 reply 2 participants last post by  Get Some 
#1 ·
I have an 06 with 28000 miles on it. It has a strange noise coming from under the truck. I dont really know how to describe it other than a "wamp wamp wamp" sound. It only happens when I am going over 35 and it gets really loud from 40-50mph. All of the gauges are fine and Im not getting any codes that I know of. It does this whether I am in the throttle or not but it isnt nearly as loud when its coasting. Any ideas?
 
#2 ·
My does the same thing at like 65 mph. It started when I put the big lift on my truck.
I don't know what it is. I would like to know too.
 
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