the coolant overflow that i repoerted in my dicor has been resurfacing . the coolant would overflow after 30 mins of driving and it happens at a rapid pace. the temprature would be at half mark.
while coming back from hyd, in mid afternoon for the first time temp went past quarter above half. I stopped the car and the colant has been leaking. waited till late night for the engine to cool and filled in coolant and drove to chennai. But there was no overflow this time around.
no check engine light blinking. Immediately took it to TASS and explained them. they did a check for 4 hours and said the head gasket is blown and needs immediate replacement.
I did not hesitate too do the work as the car has clocked 140,000. booked the service apointement. While coming back, i did decided to check with a road side mechanic. found a guy who works with heavy vechiles.
by the time i reached him, the coolant was leaking from the overflow bottle. the guy did a quick check and drove the car. He said there is no problem in engine or the cooling system. He asked me to change the radiator cap and he did not charge me.
i was
![Frustration [frustration] [frustration]](https://www.theautomotiveindia.com/forums/images/smilies/Frustration.gif)
tinking what a radiator cap will do. got a replacement cap and topped up the coolant and paked the car. next day i drove the car from chennai to trichy. there was no leak at all. i was suprised.
been 10 days and more than 1000 kms, no leaks. i visited the mechanic again. he said the radiator cap was not holding the pressure of the hot coolant as a result coolant was pushed through overflow tube.