Add Yahoo as a preferred source to see more of our stories on Google. Engine knock is the sharp, metallic sound that cuts through the hum of a healthy engine. At its core, engine knock is a problem of ...

A lot of people were celebrating when white smoke over the Vatican meant there was a new pope in town -– and that included plenty of gearheads with great ideas about what the new guy should use as his ...

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 ...