99 AWD 5.4 FRONT END PROBS (I think)

[Tucker914]

So my expy has had some pain drive line issues I have been chasing down. Fluids are full and clean. New u-joints in front shaft. Problem is after I been driving for a few minutes. On accel more so when I turn I get a crazy rumble/vibe and it feels like its under my feet. I know the lower ball joints got minimal play so does the left outer but i never had minor front end movement cause this. Just some places to look would be great.

 

[GaWag]

Pull the fuse for the transfer case. The torque on demand transfer case won't be engage . I think fuse number 104 under the hood. Mine did this. Clutches in the transfer case are wore out is my guess.

 

[Tucker914]

so if i pull the fuse, problem goes away, i would need to rebuild or replace? would a t case out of a 4.6 expy work?

 

[GaWag]

I'm running with mine pulled right now because of this similar problem. If the problem goes away then yes it's the transfer case and would need rebuilding or replaced. I found a rebuild kit for my TOD transfer case for about 150.00.

Best of luck. Let us know what happens.

Btw, fuse 104 is a tall square looking fuse.

 

[Tucker914]

i had my shaft out when i found the bad u joints but the grumble was still in the front just not constant like it was with it in.... im not dissagreeing the t case could be bad but it was still there and mostly on turning during initial accel....

 

[GaWag]

Pulling a fuse is a cheap and easy diagnostic tool.

Best of luck

 

[Tucker914]

Problem is still there even after pulling the fuse and driving around a while. I did notice a strong hot gear lube smell from rear tire area tho. Any tips on checking rear bearing?