Why is there pressure in my radiator hose?
Why is there pressure in my radiator hose? As water heats up it expands increasing pressure in the system. Being that water flows through the radiator hose it is also under pressure. The systems are sealed to hold this pressure for one main reason. Water under pressure has a higher boiling point. What causes a head gasket in a Volvo? If you do intend to increase boost in any form, it is highly suggested that you start with a better low restriction exhaust to free up back pressure. Additional boost builds increases back pressure and a restrictive exhaust causes the...