I have a 2000 Jeep Comanchee Sport, 4 lt, auto ,part time 4x4. It has 90,000km (55,000 miles) Lately it doesn't want to come out of 4 wheel drive while on the move. When I shift back into 2 wheel drive while moving it stays in 4 wheel drive until I either stop or make a sharp corner. Then it goes back into 2 wheel drive. Sometime applying the breaks sharply will put it back in 2 wheel drive but not always. Sometimes when it goes in 2 wheel drive I can hear a slight clunging sound. If I put it in reverse while stopped it also goes back into 2 wheel drive. If I'm driving off road it shifts back and forth normally and I feel that is because it is turning quite a bit. Does anyone have any ideas what could be causing this.
John