Droning sound in cab
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Joined: Jul 2003
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From: Newport, WA
Droning sound in cab
After finishing my 6637 install and CCV mod this weekend, we took the truck on a 6 hour road trip yesterday to go pick up a new dining set. At about 65 mph the truck picks up a loud, droning sound in the cab (no, not the turbo!). It seems to peak around 65, you can hear it at lower speeds and it progressively gets softer as speed decreases. Could this be something caused by one of the two mods, or should I be looking at wheel bearings? I couldn't really feel any new vibrations so I tend to not think it's a bearing, but I'm open to suggestions.
Post Fiend
Joined: Jun 2006
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From: White Mnt's,New Hampshire
some guy's that pull a lot went to the ais because of the drone...I don't seem to get any with my AFE....Chris said his drone has lessened when he put on the new box he built for his 6637..
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I have a 6637 on my Excursion and don't notice any droning at all. I do hear the hiss when the engine shifts and some hiss when I'm accelerating or pulling a load but I wouldn't call it a drone sound.
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Post Fiend
Joined: Jun 2006
Posts: 9,714
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From: White Mnt's,New Hampshire
it may stay quite if you keep the windows up..there is no sound coming out the ccv..mine ends right at the frame by the front tire and i dont here or smell any thing...
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Cargo Master
Joined: Apr 2007
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From: St. Louis, Mo.
Is your air filter touching the master cylinder or anything else that could be transferring the noise to your firewall? I had a strange noise and a slight vibration in the brake pedal when I did mine and after moving the filter a little it stopped
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Joined: Jul 2003
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From: Newport, WA
Originally Posted by guitarpicr
Is your air filter touching the master cylinder or anything else that could be transferring the noise to your firewall? I had a strange noise and a slight vibration in the brake pedal when I did mine and after moving the filter a little it stopped
Postmaster
Joined: Oct 2004
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There is a big difference in the 6637 hiiisss or ssshhhh and a drone. If you have a woaoaoaoa, then that is a contact vibration. I've been through the 6637 sssssshshshshs when towing, and it doesn't sound anything like a drone.
Hope this helps,
Jason
Hope this helps,
Jason
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Joined: Jul 2003
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From: Newport, WA
Originally Posted by Orezona
There is a big difference in the 6637 hiiisss or ssshhhh and a drone. If you have a woaoaoaoa, then that is a contact vibration. I've been through the 6637 sssssshshshshs when towing, and it doesn't sound anything like a drone.
Hope this helps,
Jason
Hope this helps,
Jason
Post Fiend
Joined: Mar 2007
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From: Texas
Chase, I already had the sound deadener in my cab when I did the 6637 so I can tell you that won't help. The simple box cut down the drone considerably. I haven't towed any with the intake box yet, but did go about 120 miles yesterday with 1250# in the bed. I'm in much better shape than I was before. The turbo sounds are still there, just a little muted.
I'm glad I saw this thread because I never thought about the sound transfer Bill mentioned. I'm not sure if the rubber part touching either the master cylinder or fender would significantly add to the drone since the rubber should act as some sort of dampener. Either way, I wouldn't have thought of that one so now I have something else to go play with.
I'm glad I saw this thread because I never thought about the sound transfer Bill mentioned. I'm not sure if the rubber part touching either the master cylinder or fender would significantly add to the drone since the rubber should act as some sort of dampener. Either way, I wouldn't have thought of that one so now I have something else to go play with.