J4jeep

988 jeep Cherokee cheif 2 issues 1st may be narrowed down to o2 sensor when I press the throttle real hard black smoke appears and I'm runnin real rich. 2nd issue is I have this wobble in my front end, it's a slight wobble until I turn left or right then it gets louder I've already replaced the dampener/stabilizer and that fixed a lot of the issue then I did the tires and the wobble persisted just tryin to figure out where to go from here, I just like it when my jeep is tight n right.

Diesel

1st issue, Black smoke, may possibly be a O2. Replace it and check, also be sure to check all your injectors. As one may be stuck open whether it be constant or only at WOT.

As for DW, Un-Balanced tires, Alignment, Tie Rod End, Ball Joints, Part of the rack or pinion, Idler arm, bad steering stabilizer, Trac bar(bushings, angles, bolts), Axle mounts, control arm bushings, steering box bolts/spacers, frame(cracks in the frame could make the steering box feel loose), bad u joint, driveshaft unbalanced.