RADIATOR CAP: FREQUENTLY ASKED QUESTIONS
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