Unusual noises from a vehicle are often the first warning that something is wrong under the bonnet or beneath the car. Many drivers ignore these sounds, hoping they will disappear after a few minutes ...

Engine knocking, or detonation, occurs when fuel in the cylinders ignites unevenly, causing metallic pinging sounds, reduced power, and potential engine damage. Key causes include low-octane fuel, ...

Most modern cars are equipped with engine management systems that utilise knock sensors to detect excessive cylinder knock ...