suheaven

If you notice your 4.6 getting poor gas mileage, running rough, hesitating, studdering (misfiring), backfiring, or poor acceleration with the engine under load, the chances are that one or several spark plugs are bad. A bad spark plug will ultimately cause the engine to misfire, causing the chech engine light to appear. If this is the case, replace all of the plugs immediately, since it will ultimately damage the catalytic converter.

firstonraceday96

are you serious?

musclekid

hahahahahahahhahahahahahahahaha

if anyone on this forum doesnt know that.. i'd be really suprised

mikev08826

Did you just copy that from a text book?

suheaven

No. I simply posted it, so that it can be referenced in google, just in case someone experiences similar symptoms and trys to search it. I recently had experienced similar problems and the weird thing was that I had the plugs already replaced 6 months earliar.