What causes engine knocking (and how can you prevent it)

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, ...
Mercury News

Finding a way to silence that knocking sound

QI have a sort of knocking noise that seems to come from the front left side of my Honda Accord. It has 150,000 on it at present. The noise seems to sound like an unbalanced wheel. All of the tires ...
Honest John on MSN

Ask Honest John - Why is my engine making a knocking sound when cold?

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 ...
The Globe and Mail

Why your car's engine might be knocking (Hint: it's not the oil)

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 ...
Ars Technica

YACT: Knocking noise after hitting pot hole.

So I was at a stop on this back road, and as I went foward and turning right, I hit a small but fairly deep pot hole. It made a nasty sound, but I didn't think of it much as I've hit pot holes before, ...