Whine, roar noise
#1
Whine, roar noise
2003 2wd quad, 6sp, dually. Strange noise to describe. At idle, ac off, at times a very slight "whine". After a stop, whine or roar will gradually get louder. Upon letting off the fuel pulling up to a stop, the whine will be same volume as the truck slows down, then before coming to a complete stop, the whine will quit. It sounds liking "spooling down". Same thing if I kick it out of gear at say, 50mph. Sometimes when making a very slight left or right, like on to an exit ramp the noise usually will go away until straightening out to continue on another road. I did notice the other day when towing our fiver, at exactly 66 mph the noise completely goes away. A little more fuel or less fuel and the noise is there. It doesn't really seem like a tire but at this point I'm totally confussed!
#3
Registered User
I had a similar noise in my 09 6.7, it ended up being a very slightly cracked exhaust manifold, it eventually cracked all the way and made the usual clacking exhaust leak sound but it started out as a high pitched whine....
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StealthDiesel (08-21-2018)
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