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 ...

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, ...

It would be nice to think that carmakers would own up to problems with their cars, but they always seem reluctant to do so, and our consumer laws are so pathetic that there's no incentive for them to ...

I own a diesel Vauxhall Astra (2005 model). When driving, the car judders as it pulls away and makes a knocking noise. The sound and judder stop when I push the clutch in. Any idea what could be wrong ...

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 ...

Failure to fix the cause of certain sounds from the engine will lead to engine damage. Report the sounds to a mechanic who will then investigate the source and cause and have it fixed. Photo by Edgar ...