Asked by: Sofie Ditterichautomotive auto repair
How much is a coolant pressure test?
Last Updated: 17th April, 2020
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Simply so, what does a coolant pressure test do?
A radiator or cooling system pressure test is useful when finding a radiator leak or a blown head gasket. This tool attaches to the top or the radiator or coolant reservoir and enables air pressure to be pumped into the system including the engine block, cylinder heads, coolant hoses, heater core and radiator.
Subsequently, question is, how long should a cooling system hold pressure? It should not rapidly lose pressure, but it is normal to lose a little. Tip: The radiator cap should be able to hold most of the max pressure for up to five minutes. You don't need to wait five minutes, though.
Hereof, will a coolant pressure test show a blown head gasket?
To test a head gasket blown between the cylinder and another port, do a leak down test. This is similar to the leak down test. Pressurize the coolant system, and see how much pressure you loose. If you loose pressure, it means coolant is leaking out somewhere.
Where does the coolant pressure sensor go?
In my case, both the coolant temp and the pressure sensor are located after the coolant exits the head and before the radiator. The pressure sensor is mounted on one of the pipes going to the radiator.