I have a 2015 GMC Silverado with the 6.2-litre engine. It has recently developed a tapping sound (like a bad lifter). Having done some research, it looks as if this model with this engine has a bad ...

There is an intermittent tapping noise from the motor of my 2007 Nissan Navara. It's pronounced on startup, then fades away when run for a short while. It re-emerges now and then. The motor is a 2.2 ...

Noisy tappets (also known as hydraulic lifters) are relatively common on engines that have done their fair share of work. By using oil pressure generated from the engine’s oil pump, the hydraulic ...

Camshaft technology is continually changing. From new lobe profiles to various forms of lobe placement, each manufacturer takes its own approach to modern performance. While flat-tappet grinds remain ...