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4 wheel drive whine noise

Chappy239

By Chappy239
in Engines & Drivetrain

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Chappy239 New Member

Chappy239

Posted
Posted

When driving along in 2 wheel drive, and I turn the dial to AUTO or 4 High I hear this kind of whining noise. If I take my foot off the gas, it mostly goes away. Shift back to 2 wheel drive, and the noise stops. Is this possibly a transfer case issue?

Currently my truck has just over 74,000 miles. I have had it since new. 

papageoff Enthusiast

papageoff

Posted
Posted

Mine does this too and always has.  I believe it's normal.  You're just hearing the chain in the t-case when it's engaged because it's basically right under the center console area.

Ozer Enthusiast

Ozer

Posted
Posted

Wait, you can change to Auto or 4WD while moving and on the gas?

I always change before going into drive or if need be, change it while coasting.

 

It may be worth while do change your fluid and also look at the magnetic plug for shavings. Better be safe...

Youtube the fluid change, its pretty simple.

Chappy239 New Member

Chappy239

Posted
  • Author
Posted

Yes, I switch to 4 wheel drive on the fly, but not under load. 

I will check the transfer case fluid, etc. 

papageoff Enthusiast

papageoff

Posted
Posted
Wait, you can change to Auto or 4WD while moving and on the gas? I always change before going into drive or if need be, change it while coasting.

 

It may be worth while do change your fluid and also look at the magnetic plug for shavings. Better be safe...

Youtube the fluid change, its pretty simple.

 

If I remember the manual correctly it says you can change I to 4hi or 4auto at any speed. I do so all the time without issue. I don't always coast, but I'm not into the throttle either. Basically, just steady speed or off throttle and I've never had a problem. 

 

For 4lo, you have to be basically stopped or moving less than 1mph. The truck won't let you go into 4lo at anything faster.

 

Sent from my SM-G892A using Tapatalk

 

 

 

 

 

MY164X4 Enthusiast

MY164X4

Posted
Posted

When the last time the fluid was changed.
My noise went away after new fluid.

Sent from my SM-N976V using Tapatalk

L86 All Terrain Senior Enthusiast

L86 All Terrain

Posted
Posted

Seeing as how you say under acceleration and in 4x4 only, it could be a pinion bearing in the front diff. Pull your front diff plug next time you are working on it and check for metal. I have changed one on my plow truck 50,000mi. As others have stated there is a slight noise/vib from normal operation but if it is severe enough to annoy you, there could be bigger issues, especially on a 2014, how many miles do you have? 

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