What Causes Knocking Noise in Engine?
The loud knocking noise presents itself, when you hit the gas pedal and throttle injects more air to the engine. Normally, this noise may be a high pitched resonant sound and sometime even a kind of rattle, which can be extremely irritating. In any case, it is not good news and there are a number of reasons why this might be happening. Here are the prime causes of knocking noise in engines. Engine Overheating One of the prime reasons for engine knocking noise is its overheating due to improper action of the cooling system. An engine coolant leak might cause the engine overheating which can lead to a knocking noise due to pre-ignition. This phenomenon causes the fuel in your engine to spontaneously explode in the high temperature environment. This problem can be prevented by regularly checking out the engine coolant levels and ensuring that the system is working properly. Check out some more tips on dealing with car overheating problems. Engine Cycle Timing Problems The engine cycle’s r