Four Wheel "Slipping/Popping out"
I have a 2002 Grand Cherokee (WJ) 4.7 with Selec-Trac four wheel drive. This is my first post on Jeep Garage, any forum for that matter. Looking for some help with something that I have searched EVERYWHERE for and no one seems to have the same issue as me. I live near Carolina Beach, NC and we have a beach that 4x4 vehicles can drive on. Well my Jeep has been fine the first year but lately it has been acting funny. I keeps "slipping" or "popping" out of four wheel. To be more specific, it sounds like my front drive shaft is "popping" out. The first time it happened I thought it either snapped or literally fell out. I was driving along on the sand and all of a sudden it sounds like it disengaged and there was a grinding noise and the back started to sink. So i stopped, put it in park, put it in two wheel drive, put it back in drive, waited a few seconds, put it back in park, put it back in 4 high, put it back in drive and it rolled right out and didn't do it again the whole day. The very next time I went out, boom, same thing. Did the same process again, rolled right out. This has happened about 4 times total. I do not have it lifted or anything like that. All stock. The two owners before me used it as family cars and I drive it very conservatively. Is it as simple as I need to change the transfer case oil or do I have a bigger issue? Thanks.