Cooling System Pressure Test

[Skyline]

I've got a coolant leak, and want to pressurize the system with a pressure tester. Does someone know the correct pressure to test this system?

Thanks.

[HPIA4v2]

I'd just go with 5psi last time, never had problem destroying any parts if you are testing for leaks. See how fast the pressure drops if any.

Actually when I did mine, the coolant was drained due to leak when I pressure test (it's easier to listen for hissing sound anyway).