Radiator compression tester (also called a radiator pressure tester or cooling system pressure tester) is used to test the integrity of a vehicle's cooling system. Its main functions include:
Checks for coolant leaks – Pressurizes the cooling system to identify leaks in the radiator, hoses, water pump, heater core, or engine.
Tests radiator cap performance – Verifies that the radiator cap holds and releases pressure at the correct rating.
Detects cooling system pressure loss – Identifies leaks that may not be visible when the engine is running.
Helps diagnose overheating problems – Finds pressure-related faults that can lead to engine overheating.
Checks for head gasket failure – A loss of pressure without visible external leaks may indicate a blown head gasket or cracked engine component.
Verifies repair
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