I could really use some help on this one, the other day my 01 got hot & started blowing lots of white smoke out the exaust, so now it's at my mechanics & he tells me that he checked the ports where the plugs go in one at a time & there's no sighns of water coming out & insists that if it were a head gasket there would be, he said there was carbon deposits on the plugs but but that's probably because of booster additives I've been using. is there any other reason it could be blowing white smoke ( lots of condensation& water) also not showing any trouble codes.please help:huh: