Dear Thumb:We have a 1991 Ford Taurus that runs fine, but it has a disturbing noise that worries us.Almost every time we put the car in gear in the morning, we hear a loud “clunk.”The car does not ...

Q I purchased a 2008 Buick Lucerne new, and it now has 68,000 miles. For the past 10,000 miles or so, a rattle or clunk noise has been coming from the front when it's driven over any kind of bump. It ...

Dear Tom and Ray: I know that lugging the engine is bad, and I know how to avoid it. But what is it, really? What causes that pinging or clunking noise? Is the crankshaft bouncing up and down? Is ...

Question: I know that lugging the engine is bad, and I know how to avoid it. But what is it, really? What causes that pinging or clunking noise? Is the crankshaft bouncing? Is there detonation in the ...