Hey guys. It's been a while since I was last here asking for the blessing of the Jeep gods.
I looked through some of the older rough idle posts and none of them really describes the problem I'm having exactly, but I got some tips of what to look at next. Here's the scoop:
Started the Jeep this morning and noticed it was idling very rough. Lots of vibration in the tub. Turned it off and back on. Same thing. Drove just fine yesterday. Thinking it was just cold, I drove it to work. Drives like it normally should: No major vibrations while moving down the road. Temp is good, oil pressure is average. Same thing happened when I was getting ready to leave this afternoon. Started it, rough idle, lots of a shaking. I popped the hood and the engine is shaking pretty good; more so than usual. There's some backfiring from the exhaust when revving, but once it clears 1200 RPM, it's smooth sailing. Sounds like a possible timing issue.
Drove it to the parts store and picked up some new spark plugs (they needed to be changed anyways). Pretty good carbon buildup on the first 4 plugs, less so on the last 2. Still getting a rough idle.
I'm waiting on a ride to take me back up there but figured Id ask you guys to see if there should be anything else glaringly obvious I should check. The wires are fairly new (bought last year) and it's been nuttered. Gonna grab a new o2 sensor, 2 new PCV valves for the valve cover, see if they have an EGR in stock, grab a can of carb cleaner for the Weber, and pick up a new fuel filter.
Anything else you guys can think of to check or grab? Trying to minimize the number of trips I have to make so as not to be a burden on my ride.