Originally Posted by cossieprob

My escos blows water out of the header tank cap when i give it some beans.If just taken my time its fine, only been doing it the last 2 shows i have been too.
The temp is fine on the car only reading 1/4 on the gauge .The car itself runs spot on, maybe a little lumpy on tickover.Its a blue wv cap, is it fooked or is there a air lock in the coolant or anything that can do this.
CheeRS Rich.