tacklebox

ya I'd say pretty darn close to 1/8" total play.

Ive pulled wires. No single wire / plug provides different results. I also get a nice blue jumping spark and a couple good jolts to the hand

FWIW I cleared the codes. It's run some but hasn't been drivin hard yet. CEL has not come back on. Just isn't idkeing like it should. I'm not noticing much of a miss at higher rpm though.

Certainly appreciate the feedback fellas!

tacklebox

tacklebox

oh... and DF your dynamic compression mention is lost on me. Please elaborate on how it may link to my issue. I'm familiar with a couple
different "dynamic compression" one being related to sound. The other dynamic ratio vroom vroom. I fail to see the link to my problem though? I can be a bit slow however. Lol

tacklebox

kinda what I've been reading as well Tyler.

LACK

Have a chance to play with your injectors yet??

tacklebox

Yes. I went thru them all. Connectors were clean and all reacted the same when pulled.

LACK

Damn, well at least thats one thing to check off the list.

tacklebox

yep. Thanks for the suggestion!!

DFlintstone

First it may or may not be of help. I don't often offer "I'm sorry" as if it were currency or something, but I do regret it if I wasted your time having you search that if that was fruitless. Secondly, guess I'm still in the dark ages. Back in the day...There was a method. Dynamic of course means it's happening, things are functioning, or at least changing. At idle, if there is a miss and you unplug #1, and nothing changes, bingo! #1 was not helping much. Then it can be done again at say 2,500 rpm. (unplugging each). Noting the RPM drop at different RPM,s with one cylinder out can point to the cause.

If puling/adding one at idle didn't change idle much, but pulling, then adding at, say 2,500r rpm did increase the rpm, compression could be narrowed down as a suspect. If it never changes it may not be firing. If the Rpm increases at 2,500, it's firing, but loosing compression somewhere.

From there a wet/dry compression test could help narrow down if that cylinder is loosing compression at the rings, or above through a valve or a head gasket problem.

DFlintstone

Yes indeed, another TJ, and always a contributor with good stuff.

tacklebox

Wow, Thanks for taking the time to lay all that out. Fully makes sense and I now see where you were going! After finding the play in distributor shaft I'm going to replace that this AM then I'll start looking into compression. From face value I wouldn't suspect it as it runs like a striped *** ape other than the rough idle but never know.

tacklebox

-UPDATE-

So, CE light came back on this AM after resetting and is now showing a P0301 cyl 1 misfire... I drove the jeep 60ish miles to the parts store and grabbed a new distributor. Other than the rough idle it seems to run fine, I don't notice any misfire symptoms at higher rpms. I also checked fuel pressure at the rail 22psi (key on not running) 49psi (running at idle). I grabbed an extra plug to play with as well. Also a fuel filter.

My plan, swap cyl 1 plug, fuel filter, distributor, in that order.

Off to the garage

DFlintstone

???? Understand "#1" was just an example. If you unplug any one of the 6 and the idle does not change, it would be the cylinder you unplugged.

I get you get it, but since yours seems to be #1, I just wanted to be double clear.

You can always swap plugs with other Cyls. to see if it's really the plug.

rklettke

Lol as one of the gurus here your word is fact. So he probably just went with it. Gotta be careful what you guys tell us xD

tacklebox

So, after installing the new distributor there was a noticeable improvement. Its was running and idling real nice. Took about a 15 mile drive. Everything from stops, 25 mph putting to flooring it to 75-80. Ran like a champ. UNTIL I stopped at the store down the road. At restart I had a slight miss but it seemed to go away as soon as I pulled out, then as I was pulling into my garage the friggin CEL came back on. GAH! Thought I was good!

Also today, checked my injectors with the meter. 15ohms on all 6..... That's all for today, gonna start tomorrow with welding the exhaust leak up on the header. Had planned on also fixin a small spot of cancer underneath the drivers side floor but guess I'll be doin a bit more tinkerin. I did notice a fair bit of crap when I swapped the fuel filter, wasn't terrible but still.... added a can of Seafoam when I got some gas this afternoon, can't hurt. Hoping it will help clean up the injectors some....