: Intermittent failure to engage ADD

06-01-2008, 06:33 PM
My rig refused to engage the ADD Saturday morning. It would let me manually shift into 4H or 4L, but the ADD light would not come on. For the first several attempts (over many hours and 160 miles) it would not only not light the light, but it would not power the front wheels. Then at OCG after a few whacks on the rocks the front wheels engaged, but still no light. Then about half-way through the run the green 4WD light came on as well.

I can now engage 4WD at will again, but am afraid the failure will re-occur.

Any help in trouble-shooting this intermittent problem would be greatly appreciated. :confused: