Dragline
NAXJA Forum User
- Location
- Richmond, VA
As soon as the weather cooled off this year, my Jeep started running bad. No power, sounded like it was missing, exhaust sounded different. I started smelling smoke (but not like you would smell if it was coming from the engine) looked around and my floorboards were smoking. Looked under the Jeep and the cat was cherry red. After looking everything over, I noticed the small crack in my exhaust manifold was growing larger. My guess is the crack in the manifold is giving the O2 sensor a false reading making the engine run rich which is making the cat overheat. First of all, does this make any sense?? and secondly is there any way to test this?? What should I expect to see if I disconnected the O2 sensor??? (besides the check engine light coming on)