Hi,

I've a Toyota Cressida GLX'91 with 140k on it. The engine was heating
up during Idling during the past few days. My mechanic attributed the
problem to the lack of a hole in the thermostat, so he drilled one in.
He says that even distribution of heat on the engine happens due to the
thermostat hole.. I'm not to sure about it.. haven't seen much change
in the performance though.

Problem 2: When I cold start the engine..it gives out white smoke for a
minute or two..& then gets back to normal..i.e. no smoke. Does this
indicate a head gasket leakage some where? If ys, what are its
symptoms...& how can it be fixed..is it expensive???

Thanks,

ZB