How does radiator cap pressure affect the cooling system and what problems can arise from using an incorrect cap?

How does radiator cap pressure affect the cooling system and what problems can arise from using an incorrect cap?

• A. It has no effect
• B. It only affects heater operation
• C. Higher system pressure raises the coolant boiling point; an incorrect cap can cause coolant loss, overheating, or leaks
• D. It reduces fuel efficiency

Answer: (C)