What to Do When the Car Makes a Rattling Noise Upon Releasing the Throttle?

[DiJaxson]

Solutions for abnormal noises when releasing the throttle are as follows: 1. It is recommended to first check whether the valve clearance is too large, whether the fuel injector is damaged, or whether the carbon canister solenoid valve is faulty. 2. If the car makes a clicking noise when releasing the throttle, it could also be an issue with the engine oil. If the oil hasn't been changed for too long, the quality or type of oil may not meet the standards. Another possibility is oil leakage leading to insufficient oil levels. Therefore, remember to change the oil regularly. Engine oil plays a role in lubricating and cooling the engine. The engine is the heart of the car, and the oil is its blood. 3. It might be due to resonance from the under-engine guard plate. Simply tightening the guard plate can resolve this issue. Another possibility is a broken catalytic converter, which can cause a sand-like noise during driving.