Need Engine Help
The jeep was runnin fine until a few days ago. I changed the oil like I allways do using a known brand two weeks ago (penzoil I think but usually I use castrol syntec blend). It got COld the last few days and the jeep ran fine this morning but when I started it up this afternoon it was puttering really badly. It sounded like the timing was way off. I drove it home tonite and while it drove "OK" it was puttering and really rough at Idle.

For grins I popped open the air cleaner and where the oil breather attaches to it there was smoke coming out out of it. There was also some oil on my air filter. The exahuast sounds real rough and puttering.

The only thing that's different is the oil change and the recent freezing temps. I hadn't noticed any pools of antifreeze but the back half of the engine looked like it might have been covered in liquid. I can't tell if that's new or not as I havn't had time to get underneath it. It was also runnin a few degrees hotter than usual.

Any Idears?

Cracked block
Missing cylnder
Timing
Senser

I'm don't even know where to start.

PS for those who aren't familure with my jeep sagas it is 93 Wrangler with a farily new re-manufactrued 4.0 6 Cyl