Heating System Blowing Cold Air Instead Of Hot

[mzb]

hi all my heating system is blowing cold air instead of hot but when i top up with coolant all is fine ....now ive heard this could be a gasket problem if it is i,ve heard that toyota has extended the warrany to 112k miles is this true ... i have an avensis 2.2 d4d 55 plate and 91 on the clock ...thanks for any help given

[igormus]

hi all my heating system is blowing cold air instead of hot but when i top up with coolant all is fine ....now ive heard this could be a gasket problem if it is i,ve heard that toyota has extended the warrany to 112k miles is this true ... i have an avensis 2.2 d4d 55 plate and 91 on the clock ...thanks for any help given

check with coolant color inside the plastic expansion tank -- if you can see an oil spots or traces -- it is definitely gasket failure. or you can see a bulbs when revved an engine. regards / Igor