I am driving a 99 Ford Explorer with about 140K miles and I have
noticed on a couple of occasions the the front wheels seem to slip.
The first time it happened it was really snowy and icy but I didn't
put it together with the idea that it might be my 4WD. Then nothing
happen for a couple of weeks but the roads were dry. Now the roads are
bad again. If I drive about 50mph I don't notice much of a problem but
if I get going 50mph or over it seems like the 4WD engages and then
disengages, especially on icy spots and it makes a loud noise kind of
like a clunking (the rpm does not go up or down during the slip). If
the roads are clear there is no problem. Any ideas? Obviously I have
no idea what is going on....is there front speed sensor too? What
should I do next?
