nasty clunk in 4x4

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10-25-2006, 12:36 PM

garbonzo

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nasty clunk in 4x4

I have a 1999 f150 4x4 automatic,when in 4x4 there is a bad clunk ,i suspect its in the transfer case or front dif but not sure,please can someone help

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10-25-2006, 07:14 PM

The Saint

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Do you have oil in the transfer case?

If yes, when was the last time you changed it?

I think I recall an issue with greasing the rear drive shaft slip yoke on the earlier 4x4's.

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10-25-2006, 09:00 PM

BLUE20004X4

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Depending on the noise I guess, there should be somewhat of a clunk, especially in 4l, clunks like hell.

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10-26-2006, 03:20 AM

JMC

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Does it clunk only once when engaging 4x4 or does it do it all the time? Electric or Manual Shift on the fly t-case?

JMC

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10-26-2006, 06:18 PM

garbonzo

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Its AN ELECTRONIC SHIFT AND IT CLUNKS HARD WHEN YOU ARE PUTTING ANY LOAD ON THE 4X4

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11-02-2006, 07:42 PM

TXallstar

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i have the electric shift and it does clunk a little bit when engaging but that is normal. They can be a little fussy at times but it shouldn't be that bad. I would have it checked out by a mechanic.

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