woodmanThanks for the input.

When I stop, I try to shift into 4x4 high. The light for 4x4 high does not come on and will not engage. Sometimes the problem will just stop on its own and will not bother again for a week or so. As long as the 4x4 low light is not on or flashing the truck will engage into 4x4 high.

I have a manual shift lever on the floor. Its not a dash button> Thanks

The truck is trying to engage into 4x4 low on its own. I'm not trying to shift into 4x4. That's my question? What could cause this to try and initiate on it's own? I'm no expert but have had Four wheel drive vehicles since 1985, and have never had this problem before.

I have been having problems with my 05 F-150 4x4/5.4 trying to shift into 4x4 low while driving. The l4x4 dash light comes on and then it starts to grind as if it trying to shift into gear. I taken it to the ford dealer twice and i am still having problems. The first time they re-programmed the...