Cooling_Systems_Flashcards
(11 cards)
What are the three main functions of the engine cooling system?
Remove excess heat, maintain consistent temperature, allow quick warm-up.
T/F: Radiators and water pumps work together to lower coolant temperature.
True.
What are the two radiator flow designs? (Hint: One flows down, one flows across)
Down-flow and cross-flow.
What powers radiator fans at low vehicle speeds?
They are either belt-driven or electric fans.
What does a thermostat do in the cooling system?
It regulates coolant flow to maintain operating temperature.
T/F: The pressure valve in the cap helps raise the coolant’s boiling point.
True.
What tool is used to detect coolant leaks by applying pressure? (Hint: Replaces the cap)
A cooling system pressure tester.
How can you detect blocked radiator tubes?
By feeling for cold spots across the radiator core when the engine is off but warm.
What might a stuck open thermostat cause?
Overcooling and weak cabin heat.
What does the vacuum valve in the cooling system cap do during cool down?
It allows pressure to equalize and prevents hoses from collapsing.
T/F: It’s safe to remove the radiator cap when the engine is hot.
False – Wait until the engine is cool to avoid burns.
