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Transfercase noise in a 2012?

Transfercase noise in a 2012?

Postby steved [OP] » Dec 30 2012, 1:30am

I have a noise in my transfercase, never notice before because this is the first time I drove at highway speeds in 4wd.

Its a drive/coast noise, but absolutely quiet at "float"...sounds like a bad bearing or a badly matched drive gear/chain. Its causing no vibrations, but its loud enough to hear outside with the windows down. It remains until the front axle disconnect releases...in 2wd, absolutely no noise. I have owned several 4wd trucks with chain drive cases, and none have had a noise like this (at most a high pitched whine). This is almost a grumble, low pitched whine.

I don't think this is normal. Thoughts?
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Re: Transfercase noise in a 2012?

Postby ASTE25 » Dec 30 2012, 1:35am

They all make a little noise like you describe./ It gets worse the faster you go.
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Re: Transfercase noise in a 2012?

Postby steved [OP] » Dec 30 2012, 1:40am

But its not a whine, almost a grumble. Again, I have a lot of miles on similar transfercases and never heard one like this. This is loud enough you can hear it over the radio at low speeds. It sounds like a bad bearing to me...
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Re: Transfercase noise in a 2012?

Postby Z15 » Dec 30 2012, 1:48am

Highway speed is ? 55mph +-?

Its not a wise idea to drive very fast in 4wd, thats what AUTO is for. If you loose control in 4wd you will have a hard time gaining control with the front wheels locked in. Also, because of the speed it may be putting a lot of stress on the driveline and causing it to bind up and could account for the noise you are hearing.

Driving on clean, dry pavement in four-wheel drive for an extended period of time can cause premature wear on the vehicle's powertrain. Do not drive on clean, dry pavement in Four-Wheel Drive for extended periods of time.
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Re: Transfercase noise in a 2012?

Postby steved [OP] » Dec 30 2012, 1:51am

Before you chastise someone like they've never owned a 4wd, better check where they live. I drove almost 250 miles of snow covered roads today. Some of us CAN drive in snow.
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Re: Transfercase noise in a 2012?

Postby Z15 » Dec 30 2012, 1:52am

I have owned 4x4 for over 20 yrs and live in upper Michigan near Lake Superior and we average over 200 inches of snow a year so I have many years of experience driving on snow and ice covered roads.

PS - I have driven tens of thousands of miles on snow covered roads and really never needed to have it locked into 4 wd once moving.
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Re: Transfercase noise in a 2012?

Postby ASTE25 » Dec 30 2012, 2:00am

A 4wd is no better than a 2wd when it comes to stopping. Just sayin................
As far as the noise in the transfer case, can you maybe post a video/audio file so we can hear it?
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Re: Transfercase noise in a 2012?

Postby Z15 » Dec 30 2012, 2:04am

steved

It was not my intention to chastise anyone, I was merely trying to explain that driving at highway speeds in 4wd puts a lot of stess on the drive line components. Sorry if I offended you.
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Re: Transfercase noise in a 2012?

Postby GM Customer Service » Dec 31 2012, 3:20pm

steved wrote:I have a noise in my transfercase, never notice before because this is the first time I drove at highway speeds in 4wd.

Its a drive/coast noise, but absolutely quiet at "float"...sounds like a bad bearing or a badly matched drive gear/chain. Its causing no vibrations, but its loud enough to hear outside with the windows down. It remains until the front axle disconnect releases...in 2wd, absolutely no noise. I have owned several 4wd trucks with chain drive cases, and none have had a noise like this (at most a high pitched whine). This is almost a grumble, low pitched whine.

I don't think this is normal. Thoughts?


Your concern is certainly understandable regarding the noise issue. If you feel there is a malfunction occurring, please see your dealership to see if any issues are occurring. Keep us posted and if you take it in, let us know. If you send a PM, please include your VIN#, name, contact information, situation, current mileage, and dealership information. I hope all is well considering.

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Re: Transfercase noise in a 2012?

Postby steved [OP] » Jan 08 2013, 1:54am

Verdict = "normal" noise, the newer transfercases are noisy. They said they have several trucks that make it...really?

I find it funny how a 2012 chain drive transfercase, very similar in design to the one's Dodge used in their 2500 since 1994; can be this noisy. None of the many Dodge units I have owned ever made this kind of RACKET, including low tech ones from the 70s and 80s. A slight whine, yes. A grumble with a clicking, no.
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