I have got a escort van that is lpg converted and the heating has never worked, it blows but only cold. Under closer inspection it seemed the coolant pipe into the heating matrix has been removed and seems to go into the bottom of the engine? Any how I put a t connection on it and put a new pipe connecting to the matrix in pipe. Start the van it chudders and pours white smoke / water vapour and keeps cutting out any idea what on earth is going on here?