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, ...

My Subaru Impreza – ‘03 RS model (2.5l) - has begun to make a knocking noise (similar to a diesel engine) during start up in the morning. It slowly fades as the car warms up. The only think I can ...

I have discovered an engine knocking noise and severe diesel blow-by problem in my 2015 Nissan X-Trail 1.6-litre diesel. Do we spend $10,000 for a second-hand engine and have that fitted? The car has ...

I have a SEAT Leon 2015. When cold there is a knocking noise coming from the engine. It sounds like it is in the area in ...

I drive a 2009 Honda Pilot Touring 4WD. I hear some knocking when I start the engine. It eventually becomes relatively quiet after a minute or two. Would it be a good idea to start using synthetic oil ...

USA: Class action lawsuit filed over ‘knocking’ GM engines – report General Motors has quietly repurchased dozens of full-size pickup trucks and sport utility vehicles, its most profitable models, ...