No smoke machine? No problem. Learn how to check for engine vacuum leaks using visual cues, soapy water, and DIY tricks to ...

In order for an engine to perform its best, it must have proper fuel, spark, and cylinder sealing. Conducting a leakdown test is the best way to determine if there's a problem with a particular ...

One of the most difficult tuning problems to overcome is the seemingly ever-present engine vacuum leak. Vacuum is an important component of the internal-combustion process because it controls basic ...

Mechanics are blunt about it: the “little” oil spot under a parked car is often […] ...

I've owned a lot of old cars in my time, so the occasional dark puddle or stain from a fluid leak on my driveway has been an all-too-common sight. My thought process is the same every time -– do I ...