One more follow-up to this thread...got the front driveshaft u-joints fixed and put the driveshaft back in...no vibration in 2wd or 4wd! I haven't undone the brown wire mod yet, but I'm going to put a simple on/off switch in parallel on the brown wire to see if A4WD will work without the...
I realize this has been a long time coming....although I had explained before that doing the brown wire mod took care of my hesitation on acceleration problem, I still had an ongoing vibration problem, particularly at 40+ mph. Just this afternoon, after consulting with some mechanics (and...
Lots of great advice...gonna bring it in to the shop here soon. After putting the 104 fuse back in (now several days) but brown wire cut I still have no more bucking/hesitation but the vibration continues. Vibration seems to get worse as the car warms up....maybe tire(s) are warming up through...
Would it matter in the long run as long as I use it in 2WD? I live in an area where I would most likely never use 4WD for anything, and using the brown wire mod to force 2WD (or manually engaging 4WD) seems to prevent the issue from occurring. From what I've read on the forums changing to 2WD...
Great ideas everyone...I'm going to focus in on the u-joints with a buddy who's a mechanic and see if there's too much play on the front one first, where the vibrating is coming from. Could a bad u-joint(s) also cause the AWD bucking/hesitation or would that be a separate issue? Since I cut the...
Edit: Jumped the gun to test a theory...clipped the brown wire (not modded, just clipped so the AWD would go to 2WD) and put the 104 fuse back in...vibration still there, however switching manually to 4H did not produce the hesitation/bucking like before, and none in 2WD with the fuse in. No...
First time poster here...already scanned through the forum looking for my exact issue and I couldn't find an exact solution so here's the problem...
Have a 2000 Expedition 5.4L Triton with the 4r100 tranny code verified. I've had a constant vibration issue that also initially had a...
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