Originally Posted by hmmrdwn
I did the plugs today and will see what happens when it's warm out. The factory plugs looked fantastic. I'll check the gap on them though.
I'd imagine they would if this is in regards to a 2010+ EJ253.
Mine clatters at times too when the ambient temps are warm. That's how it it with max fuel economy programming.
No one likes it, but it's not a problem unless it does it constantly.