rob_bunch
Member
As it all shakes out and now that its been with the dealer for 6 weeks, it was the head gasket,,, it was leaking coolant into cylinder #3 and that was why the sputtering and fouling. I guess the 3.6 cant run on a water and petro mix. Bliwn away as to how this can happen at 80k. While it was down I paid a little extra for 5 new plugs,,, should be good to go now,,,, I hope!