Engine knocking, or detonation, occurs when fuel in the cylinders ignites unevenly, causing metallic pinging sounds, reduced ...

You’d expect any noise from under a car’s bonnet to be caused by the engine, but if this noise occurs before you’ve started the engine, you’re on to a real mystery. Perhaps the noise can be heard as ...

A knocking sound from the engine often triggers worst-case assumptions, but piston slap is a far more common—and usually less dangerous—culprit. It occurs when a piston lightly contacts the cylinder ...

I have discovered an engine knocking noise and severe diesel blow-by problem in my 2015 Nissan X-Trail 1.6-litre diesel. Do we spend $10,000 for a second-hand engine and have that fitted? The car has ...

Q: My 2009 Volkswagen Jetta Sportwagen – with a five-speed manual transmission – makes a weird tapping noise. The noise has been there forever, yet the car runs great. I have had the engine looked at.

If your Kia or Hyundai engine just started making a loud knocking sound, don’t panic. You might be eligible for a free engine replacement due to a massive engine recall. Featured Video A viral TikTok ...

Hello Paul, my car makes irritating noises that I suspect are coming from within the engine. Every time I drive, it sounds and feels as if something is shaking, especially under the bonnet. I am ...

You're tooling along on your way home from a cruise night or a car show when you pull up to a stop sign. As the engine drops down to an idle, you hear astrange sound from under the hood. It's not a ...