What Causes the Ticking Sound Under the Car After Turning Off the Engine?

[JeffreyLynn]

The reasons for the ticking sound under the car after turning off the engine are: 1. Cooling sound of the three-way catalytic converter; 2. Cooling sound of the exhaust pipe; 3. Turbo cooling sound; 4. Abnormal noise caused by uneven engine cooling. Common car faults include: 1. Brake failure; 2. Air conditioning malfunction; 3. Insufficient lubrication of fluids; 4. Tire blowout; 5. Damaged car paint; 6. Vehicle self-ignition; 7. High transmission temperature; 8. High engine temperature; 9. Overheating of coolant. Car maintenance items include: oil change, replacement of three filters, spark plugs, transmission fluid, coolant, brake fluid, brake pads, tires, and battery. The benefits of car maintenance are: 1. Ensuring the vehicle is in excellent performance condition; 2. Improving vehicle efficiency and reducing wear on parts and tires; 3. Enhancing driving safety; 4. Preventing dangerous situations caused by vehicle problems; 5. Reducing noise and environmental pollution; 6. Keeping the vehicle's appearance clean and preventing damage.