RADIATOR CAP: FREQUENTLY ASKED QUESTIONS

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1. What is a radiator cap?

- A radiator cap is a small but important component of a car's cooling system.

- It is typically found on the top of the radiator and serves as a seal to maintain the pressure and coolant level in the radiator.

2. How does it function?

- The radiator cap has a spring-loaded valve that regulates the pressure inside the cooling system.

- When the engine heats up and the coolant expands, excess pressure is released through the radiator cap's valve into the overflow reservoir.

- As the engine cools down, the vacuum created in the cooling system draws coolant back from the overflow reservoir through the radiator cap.

3. Its importance

- The radiator cap plays a crucial role in maintaining the proper pressure and coolant level in the cooling system.

- Without a functioning radiator cap, the engine can overheat or the cooling system can develop leaks.

4. Signs of a Faulty radiator cap

- Visible signs of wear or damage on the radiator cap itself

- Coolant leaks around the radiator cap

- Engine overheating or fluctuating temperature gauge readings

- Low coolant levels despite regular refilling

- Hissing sound coming from the radiator cap

- Steam or smoke coming from under the hood