Hi guys I have a 2007 JKU with 110k. I recently put 20 bucks of gas in it after on the highway I had a cyl 6 misfire so I pulled the plug and it was pretty worn out. I replaced all plugs and wires and gapped to .05 I also used champion plugs and put some fuel treatment in. It seems I got misfire to go away but at idle it almost lopes and feels as it wants to miss and bog down. Any of you guys had any experience with this?

 

is the gap supposed to be .030-.035? try running a bottle of Seafoam through your intake....worked wonders for me

 

I was told .04 -.05 but I can try that and are you spraying through TB or somewhere else ? I'm really confused I'm pretty sure I didn't mess up firing order or anything in that nature.

 

from my AllData...you are correct on the gap...


use the vacuum line on the brake booster to slowly suck in the Seafoam treatment

 

You think it could be anything else just because it never really did anything like this before ...hmmm. Thanks for info

 

sounds like it could be your pcv valve....easy and cheap to replace

 

So after seafoam plugs and wires and pcv valve I just got a cyl 6 misfire today. Any other ideas guys.
Bump

 

Bump bump

 

#6 injector

or fuel pump.

you need spark, fuel and air for combustion.

sparks been checked
air is probably not the problem

 

I'm thinking it's a pump due to bad gas