In this video, I show you how to test spark plugs and coils on any car, even if the spark plugs are recessed or hard to reach. Whether you're troubleshooting engine misfires, poor performance, or bad ...

If you are shopping for a new or used car, USA TODAY Cars offers these tips to make the most of your test drive. First, said Matt Smith, head of Consumer Insights for car shopping site CarGurus, ...