Ok this is some stupid crap that is going on. I have the 3.0 V6 its a very nice motor when it run's right. Heres the thing it sounds like its pinging as in low fuel grade. I always use 91 Shell but I've been starting to fell it dog like its 89 it just dosent fell as smooth but it might be me.

I'm having this huge pinging sound coming from the drivers side bank it only happens for a period of 15 mins then is 100% clear and the car turn's into a cruise missile for the next 3 weeks. Its hard to explain but when you step on the gas it sounds like its chocking on fuel. I'm guessing its a fouled plug but why would it only be during random times? There are no codes being throw so its proven to be a pain to figure out. Anyone have any idea I dont have the money to get this fixed as I'm saving for the TB job at $1400 considering I can't seem to find a good person other then off the wall shops to do it for $900 with no warrenty.