i was doing a little maint on my daily driver today. This is what i found when i pulled the plugs. Any idea what could cause those last 2 plugs to be messing up ? Car runs fine but that doesn't look good. That's the order i pulled them in from an eagle talon

 

What do you mean by "messing up"? If you're talking as to why they're dirtier looking on the part above the threads... that's usually caused by a leaking/seaping valve cover gasket, specificly the o-rings that go around where the spark plug holes are. I wouldn't worry that much about it... if that's what you mean, again, by "messed up".

~ASE certified Mechanic of 6 years.

 

yea thats what i meant. Why those last 2 plugs were black. Thanks for the answer.

 

Because its a DSM. Get rid of it as soon as you can!!

Is it a 4g63? Those valve cover gaskets are aweful and leak all the time. Probably time to replace it with a newer, squishier, better sealing one

 

No clue, i dont really know much about it. I can turn a wrench though..



This car is slow but its my grocery getter lol. I just try to keep it running, 140000 on it so far, 5spd. I picked it up a year ago for dirt cheap, ran like a grandma owned it. Been good so far.

 

ya dont worry about it, spark plugs dont look serious, just replace and do regular maintence and you will be find, but yes the top end of those motors have problems after a while

 

You need to be worried about he color of the tips, not the body of the spark plugs.

 

Werd, but the porcelain looks like it runs to hot of a spark maybe? Correct plugs?

 

Yep, the black gunk on the "outside" on the spark plug is burnt oil from a leaking "o" ring on the head... no big deal, but if you ever take the valve cover off it is an easy/cheap fix.

Your plug electrodes look a little too ash grey. They might have just been overdue to be replaced, or you're running a little too hot of a spark.

 

Hey, I used to have one of these cars. If youre replacing parts make sure you check your timing belt. If that breaks you'll have a bad time