I was on an icy incline.wheels started spinning. braked, shifted from 2wd to 4wd on 1999 Jeep Grand Cherokee

when I pressed gas, car made grinding noises. think it is hubs not disengaging. any help would be great.

Asked by for the 1999 Jeep Grand Cherokee
Sometimes it pays to look in the owners manual for proper shift sequence. Just saying.
1 more answer
If you put it 4wd maybe the hubs are not engaging, I assume it's automatic hubs. Or maybe the actuator is not holding.