Q: My 1999 Pontiac Sunfire coupe is doing something something I can't easily explain. The car has 240,000 km on it and it has the stock engine, although I think I bought it with a K filter charger.

A few months back my 2004 Ford Focus 1.8 developed a chronic misfire, which was diagnosed by my Ford dealer as a blown 'coil pack' caused by 'unserviceable' spark plugs. Shortly after that was fixed ...

Q-When my 1993 Toyota pickup overheated at 40,000 miles, I replaced the thermostat and flushed the cooling system. Recently, the engine has been running too cool. I wouldn’t be too concerned about ...