T-case whine when engaging 4wd - Ranger-Forums - The Ultimate Ford Ranger Resource

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Old 02-09-2008
BeaterFX4's Avatar
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Join Date: May 2007
Location: Lutz, FL
Posts: 68
T-case whine when engaging 4wd

I've had a whining sound coming from under the driver side of my truck for a while now. The noise increases with speed, and is the loudest around 40mph. I haven't used 4wd in a while, so I thought it might be the l/f wheel bearing. The other day I clicked into 4-high on a dry paved road and the whining sound got a lot louder. When I put it back into 2wd it went away again. I changed the fluid in it last night but the noise is still there. The truck has 53k on it, and I don't think the t-case fluid has ever been changed before yesterday, it was pretty brown when I drained it. Any ideas?
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Old 02-09-2008
01_WhiteRanger's Avatar
Join Date: Jun 2006
Location: Quincy, WA
Posts: 37
yeah mine does the same when in 4 wheel, i think a little whine is normal.
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