well i was changing out my spark plugs today, and on cylinder 6 taking out the plug there was oil on it, and i mean lots! it was like to the top, so i replace the plug. put everything back together and cylinder 6 was misfiring. im thinking i need to replace the valve cover and after that everything should be fine, anyother suggestions? i know i put the coil packs in back in the rights spots because i did the plugs one at a time putting it back together right away. im really worried right now! someone please help me! im almost positive its the valve cover that needs to be replaced, but with alot of oil in the cylinder 6 spark plug would that cause a misfire? thanks!

 

Ouch, there should be a tsb on that. Some VQ engines where plagued with that problem. If you're still under warranty go take it in, they will replace your valve cover.

 

well im out of warranty, so no luck there, but im going to infiniti tomorrow and put up a fight and see if corporate will do something for me!

 

Good luck with that bro, keep us updated.

 

thanks! and for sure ill update when i find out whats going on

 

i had that problem also and they say that it was a gasket. the car should cover that up to 70,000 miles since it is a tranny problem. got it fix at no charge i went in wen i had about 67,xxx miles

 

It's not a tranny problem....

 

+1 i dnt see it being related to the tranny

 

it is a powertrain though, covered up to 70,000 miles

plus there is a TSB about this

 

really ive been lookin around and coulndt find the tsb? what would it be called?

 

Did the car also loose lots of power after certain RPM?

 

yea it really hesitates off the line and you can feel a power loss when crusing also

 

Good luck. Just hope its not the piston rings.

 

I Hope not!

 

Could you notice any oil leaking down the side of the engine? Or was it undetectable until you replaced the plugs?

Which plugs you use? p/n?