Hi bro overheating on avensis are common problem, but they are easy to fix
if there is no major damage to the engine. This engine do have terible air
lock on them if you do not bleed the cooling system properly.you need to
bleed the system propperly first, and make sure that you are geting hot
air inside the vehicle befor changing any bit on your engine. if not you
can email us to let us know what you have done to the engine.
hassan