YES. Cylinder pressure is getting into the cooling system causing the temp to jump instantly
1990 Mustang GT blown head gasket???
i believe i blew a head gasket, these are my symptoms and what i know
car would not start one day when it was warm, then after that in the mornings instead of taking once maybe twice to start, it started taking like 6 times, then after that, it would stay running, but only about 500 rmps, sounded like it was running on about 6 cylinders, then i noticed within 2 days it was running just a little warm, then it got HOT oneday, so i changed my thermostat, and it when it starts it runs like ****, if u let it idle, and then when it warms up, as soon as the thermostat opens, it jumps strait to like 260, and if the car is not completely cool, it wont start, im saying its a head gasket, anyone else???
car would not start one day when it was warm, then after that in the mornings instead of taking once maybe twice to start, it started taking like 6 times, then after that, it would stay running, but only about 500 rmps, sounded like it was running on about 6 cylinders, then i noticed within 2 days it was running just a little warm, then it got HOT oneday, so i changed my thermostat, and it when it starts it runs like ****, if u let it idle, and then when it warms up, as soon as the thermostat opens, it jumps strait to like 260, and if the car is not completely cool, it wont start, im saying its a head gasket, anyone else???
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