Engine knock is the sharp, metallic sound that cuts through the hum of a healthy engine. At its core, engine knock is a problem of timing. In a knocking engine, parts of the air-fuel mixture don't ...

Q: There is a tapping sound coming from the engine of my vehicle. How do I go about diagnosing what this might be and how much a repair would cost? A: A repair technician will use a mechanic’s ...

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 ...

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 ...

What is the knocking sound coming from my engine? What is engine knock? Why is my engine making a knocking noise? Engine knock, or pinging, occurs when a separate pocket of air-fuel mixture ignites ...

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 ...

My Mk5 Volkswagen Golf, with hybrid stage two turbo, was making a whistling noise. It's now stopped and won't restart, plus lost all oil. The exhaust shows signs of oil in end pipes. What could this ...

Hi Paul, I enjoy reading your articles. My 1.3CC petrol Toyota Corsa 1997,E-EL51 produces a tapping sound when I start it in the morning. The sound reduces when the dashboard oil goes off. My mechanic ...

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 ...

Well we would suggest that you remove the rocker cover and investigate the noise, ie check to see if all valves are operating correctly. If all okay then it maybe that one of your sensors is faulty, ...

Engine knocking can be an annoying issue to deal with, and it can even cause damage to your car. Here's why it might happen, and how you can prevent it.