thanks for the tips, i haven't had a chance to bring it in to get the back codes read. but the last time the check engine light came on it was the o2, about 6 months ago. the only other thing that has come up on the instrument panel was the word "no bus" on the milage reader. but i'll try the volt meter approach.

as for the coolant i'll see if i can get somone to help me look for it. there is just so much crap in the way....i hope all it is, is a freeze plug...

99 wrangler sport, auto. 2.5 inch lift, 31 MTR's