I put the Cherokee into fulltime 4wd for the first time today and it makes an intermittent drivetrain noise. Can't really describe it - I suppose a sort of rumble/road noise. It did it once when turning right and at other times it just came and went. When I went back to
2wd it stayed in neutral, and also stayed in neutral when I tried to re-select 4wd. I stopped and reversed and it then went back into either 2wd or 4wd fine, but the intermittent noise is still there.
I've had 4 new tyres fitted today, so the wheels should all be the same size ;)
I doubt that the previous owner rarely, if ever, selected permanent
4wd or even played with the lever. What servicing should I do, and any idea on the noise?