Just had £1400 worth of engine repair on my 2002 Toyota celica,this included head gasket and piston seals.but am still getting a sort of white evaporation smoke for exhaust even after driving for 40mins to 1.30hr.
Oil is all good and on correct level.and right colour.
I did notice coolent was very low as I could get and hot air from heater so topped it up 3time and seems not to have change much now.i guess when they did all the engine work they didn't to it back up.
Been to various garages and they seem to think its the catalitic converter.because the car had been drive for long time with bad piston.
What do you think?