4x4 turns on by itself?!? | Ford Explorer Forums

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4x4 turns on by itself?!?

spikedog

Member
Joined
September 1, 2009
Messages
38
Reaction score
3
City, State
Wyoming
Year, Model & Trim Level
'06 XLT
2006 V8 explorer XLT with about 90K miles.

Seems like twice last weekend while on a trip to hot Salt Lake City the 4x4 turned itself on. I could feel some extra vibration in the front end, and see the 4x4 light on.

What could be the root cause of this? Perhaps a tire diameter is off, setting off a spurious slippage alarm? I'm pretty religious about tire pressure, and they all seem to have the same amount of wear. The set I have on is the original Michelins, and I'm probably going to change them this fall (I go with dedicated snow tires in the winter). Otherwise, maybe an issue with the transaxle? A search on this issue was pretty barren - not a common problem.
 






Several times I've reached over to change radio stations or the climate knobs and bumped the 4x4 high button.
 






Yeah, my wife has done that a few times, mainly as a passenger.

Found a reference on FTE about the CV joint between the front axle and the transaxle. I'll poke my head under the car tonight.
 






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