Hey guys, I had a CEL for Cyclinder 2 misfire so I figured I'd replace my spark plugs. I got them in today, so I started replacing them one by one (note my car was hot, I just got done driving it). On the third one when I took out the spark plug I noticed smoke coming out. I thought maybe since the car was hot but this was the ONLY one smoke was coming out of. I also think this was where the misfire was happening (I get confused if its the acutal 2nd plug or the 2nd to last which is considered the 2nd cylinder lol). So is this normal or should I worry about it? I'm also replacing the wires if they come in tomorrow to be sure everythings ok.

 

no that is not normal, oil or water is getting into that cylinder somehow...caould be a lot of things tho

 

rings, headgasket, valve seals... main culprits... have someone do a compression and leakdown test... but be prepared for some not so good results

 

never mess with the spark plugs on a hot engine especially if re-installing them can run a chance of cross threading.

 

it COULD be some unexploded gas....but not too likely...like they said get it ckecked out and/or see if you get it to do it again when the plugs and wires are new.

 

deffinitly not a normall thing and never replace when engine is hot but ne way get it checked and like they warned you be perpared for some not so good news it could get pricey but it could be something small there is just so much it could be you just need to get it checked

 

Damn This doesn't sound good at all...and my car seemed to be running so good lately!!! Just curious, an estimate of how much it's going to cost just to get it checked?? I know it varies depending on who you go to but just a ball park range. I won't be able to get it checked out till next week.

I really hope it's something small :/

 

i could have been your o-ring/seals on your valve cover around your sparkplugs are leaking and some oil dropped in to cyclinder and smoked- compression test the cyclinders -

 

I think ive seen this before.A little "puff" of smoke comes out of the spark plug hole when you remove it(only with a hot engine).
Believe it or not I think this could be normal. Like said above, some unburnt fuel or even some residual exhaust gasses remain in the cylinders after the key is turned off and arent completely expelled on a partial exhaust stroke...You can look into your throttle body and see the same thing happen.
If its running good, not using coolant or overheating and not burning oil, Id say leave it alone.