What Causes the Clicking Noise When Releasing the Accelerator?

[LeAbigail]

The causes of the clicking noise when releasing the accelerator include: 1. Excessive valve clearance; 2. Damaged fuel injector or charcoal canister solenoid valve; 3. Long intervals without oil changes or the use of substandard oil quality or type; 4. Oil leakage leading to insufficient oil levels; 5. Inability to establish effective oil pressure, resulting in a lack of proper oil film between components. Solutions for the clicking noise when releasing the accelerator: It is recommended to first check if the valve clearance is too large, if the fuel injector is damaged, or if the charcoal canister solenoid valve is malfunctioning. It is advisable to have the vehicle inspected and repaired at a 4S shop. If the clicking noise occurs during the transition from a cold engine to a warm engine state and lasts for about 3 minutes, it is likely due to poor lubrication of the valves in a cold engine state.