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 ...

That rhythmic knock under the hood could mean five very different things.

High-fidelity simulations to help determine how engine knock develops and assist in predicting how the transition from smooth combustion to knocking occurs. If you were to do an internet search for ...

There are a million and one things that could go wrong with a car engine. In old times, it was solely up to the owner and/or technician to drudge through possible issues until they determined what was ...

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 ...

Dyno tuning is great. But, a dyno-tuned engine can't always be tuned for the stress it might see on the street, let alone something like the continued abuse of, say, a track day. This is especially ...

Q: I’ve got a 2005 Honda Accord V-6 with only 78,000 miles on it. I have changed the oil religiously according to the owner’s manual from the day I purchased it new. Within this last year it has ...

Q I have a 2005 Ford Explorer V6 with 75,000 miles. The engine knocks when first started in cold conditions. As it warms up, the knocking dissipates. I tried using synthetic oil, but it hasn't helped.

Add Yahoo as a preferred source to see more of our stories on Google. 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 ...