Among the many pesky issues that can confound do-it-yourself mechanics, one of the most simple yet elusive that impacts overall drivability is the common vacuum leak. This is especially true if you're ...

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 ...

We may receive a commission on purchases made from links. A vacuum leak in a car occurs when there's an unintended opening in the vacuum system, which allows air to enter the engine. This disrupts the ...

Indeed, there are some very real benefits to be gained from using natural engine vacuums (in either the intake manifold or the header collectors) to evacuate the crankcase, but unfortunately, many ...

Question: why is vacuum so important on a vehicle? Answer: Vacuum is created when each piston moves down the cylinder with the intake valve open. It will change as the engine is running at different ...

What is an intake manifold? How do intake manifolds work? What is a performance intake manifold? This video features a Skunk2 Pro series intake manifold courtesy of Redline360.com. Intake manifolds ...

Crankcase ventilation is almost provided in all automotive engines. Its prime job is to prevent the dilution of lubricating oil present in crankcase which may lead to corrosion of crankcase metals if ...

For any of those DIY auto veterans who’ve had to deal with a vacuum leak on older rides, we all join you in gratitude for engine control advancements that have pretty much made these diagnostic ...