Q: I have a well-maintained 1998 Toyota 4Runner Limited with 239,000 miles. The truck has been awesome, no more than normal maintenance issues. The problem is one of the lifters is knocking. I hear it ...

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 ...

Engine knocking can result from one of several issues involving your engine. Whatever is causing it, it must be dealt with immediately so it doesn't become any worse. The knocking is a warning sign ...

Engines are incredibly complex. They are made out of thousands of different parts, exposed to high temperatures, and have lots of moving parts. This leaves many potential pain points an engine can ...

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, ...

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 ...

At the very least, tearing down, inspecting, and cleaning hydraulic lifters is good engine hygiene that can contribute to long service life in your classic car. It’s also a great way to inspect the ...

The engine is the heart of every vehicle, and once that heart fails, nothing else can move. Yet every day, scores of motorists unconsciously push their engines toward damage, especially in a country ...

Without a doubt, solid cams carry a certain mystique. In the musclecar days, solids were factory-fitted in some of the hottest iron out of Motown, including the early street Hemi. There was a little ...

There are very few sounds sweeter to a gearhead than a small-block spinning past 8,000 rpm. For anyone who appreciates internal-combustion engines and horsepower, a race engine spinning at high rpm is ...

After reading about Laurie Bright's issue with an engine knock in his 2008 Holden I thought I'd tell you about my 2003 Falcon, which had a similar problem at 96,000 km. It happened two days after ...