96 renault megane 14. water comes back into the header tank under pressure. Makes no diffrence if the car is hot or cold, have changed thermostate and sensors, is there any point changing the waterpump? Am i missing something else? Has the head gasket blown again? can you help? Hoiliday coming up need car.

David, July 2008

sounds like a head gaskets away,check if the engine oil is emulsifing (contaminated with water).if oil all creamy head gaskets away. sometimes when a head gasket goes the cylinder head needs to get skimmed cause it gets warped.

Debbi, July 2008