A few days ago, we published a report highlighting the valve lifter issues some General Motors customers were experiencing in certain vehicles equipped with either its 5.3L V8 L84 gasoline engine or 6 ...

The engines of yesteryear were pretty simple, with tappets clackity-clacking away on cam lobes, opening valves, and making a ruckus while doing it. Mechanical lifters were adequate for valve operation ...

Ticking noises from a car's engine are rarely welcome, but if your lifters are clicking away in the background, it's worth ...

GM Authority has received a growing number of emails and messages from General Motors pickup truck and SUV owners experiencing valve lifter problems. To note, the naturally aspirated 5.3L V8 L84 is ...

Under a tree, in a remote corner of the earth, there is a guy adjusting his hydraulic valve lash with the valve cover off and the engine running. Yes, it's true. We've seen it. Proof is that you can ...

While the engineering community continues to explore the benefits of electric and hybrid vehicles—i.e., the environmental and renewable energy factors—the automotive market is still dependent on ...

A car engine is a piece of heavy machinery, and it isn’t surprising for it to make all kinds of sounds. The rotating shafts, the moving pistons and valves, the combustion process, and other engine ...

Brian Cooley is CNET's Editor at large and has been with the brand since 1995. He currently focuses on electrification of vehicles but also follows the big trends in smart home, digital healthcare, 5G ...

With so many of our discussions lately revolving around the valvetrain, we thought you might like to finally learn how to get the best performance from yours. High-performance valvetrains can take ...