Describe a basic method to perform a cooling system pressure test.

• A. Open all hoses and watch for leaks while the engine runs.
• B. Attach a pressure tester to the radiator cap port, pump to the specified pressure, and inspect for leaks with the engine off.
• C. Remove the radiator cap and fill with water, then run engine.
• D. Pressure test is not necessary for cooling systems.

Answer: (B)