The demon of engine knock is something an owner of a traditional high-performance Pontiac knows all too well. An engine designed when 102-octane high test was at almost every fuel station in the ...

Detonation is probably a hot rodder's worst enemy. It's also been called ping, the death rattle, or just plain spark knock, but by whatever name, detonation is a big killer. When you hear a noise that ...

Hello Paul, my car has started making a loud knocking noise from the engine, especially when accelerating uphill. It was not there before. I worry it could damage the engine if I continue driving.