'02 TJ with i4 -- Mid Life Crisis

[JEEPWERX]

All jeeps squeak!
If they dont squeak or rattle or vibrate or leak then they arent called jeeps.
Those would be called cars!

[jaysenodell]

Well... yes. Just trying to avoid redoing work that was already done.


sMike, will need to get home to check for sure, but i'm nearly positive that we did all joints (I didn't want to be back to do the pinion joint...). Will check 4w at lunch. To check shaft Us I need to lift from frame with all load off wheels, correct?

[mr.mindless]

with trans and case in N and wheels chocked the shafts have no load and you can check for relative motion between yokes that should not be there.

squeaks are usually the center pin on the CV in my experience.

[jaysenodell]

sMike:
1. Fleet did 3 joints. That is all that I counted on the shaft.
2. 4x4 stops the squeaking
3. Huh?


Other Mike: no noticeable play. Checked rear and front.


Driving at lower speed it seems to be tied more to engine RPM than speedo. shift from 1 to 2 to 3 changes frequency. That makes me less thrilled.

[Wingman]

Run it.  Or burn it.  You always have options.

[mr.mindless]

Smart guy ^^^

[jaysenodell]

Smart azz is more like it.

I'm going to let it go and stop panicking. At least that's the plan. If it gets worse then I can be concerned. Right?

[dubt]

Run it till it breaks

[M4wdFab]

Rebuild front shaft cv

[gslarue]

it,s fine

[jaysenodell]

odd... had occasion to use 4wd this morning (called get it our of the driveway) and opted for low. squeak/cluck is NOT related to drive speed as much as engine speed. Ex, same rate in 2wd as 4wd low. Not sure why it showed up in 4wd low as it was not present in 4wd high. Checked several times. Should be able to get under her on Saturday once I refuel the heaters.

[jaysenodell]

Not able to make FLC event so decided to crawl under MLC. Dumb question: how much should the pinion yolk move where it enters the diff?


Basically I can't find any difference in the front or rear DS other then the front pinion yolk is visibly moving at the front diff. By moving I mean up/down/left/right not rotational. It makes the DS feel loose but if I hold the yolk stable the DS is solid. Not up to removing the skid plate today so I didn't pull the shaft out.


I'm not sure the rear is good either. Seems to have some play in the shaft but I can't figure out where. U joints not allowing any play and CV is solid. Yolk at diff not moving. Did see any movement at tcase but didn't have a great view.

[Wingman]

Yoke should have zero non-rotational movement.  Bad pinion bearing...

[mr.mindless]

yup, loose pinion nut at best, bad pinion bearing likely as well if there's any non-rotational movement. Likely a seal leak there, and badness happens to bits inside if it gets too sloppy and parts vacate their proper homes.

[jaysenodell]

Been seeing oil after diff refills so yep to the leak. I don't recall sMike seeing metal bits in the diff before. What options here? Remove front DS to keep load off?

Wasn't planning to do gears till late spring...