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

The pumping of an engine’s pistons creates a vacuum in the cylinders, and that vacuum is filled by air drawn in through the intake system. If leaks develop in hoses or engine parts downstream from the ...

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 ...

If you remove whatever cap or plug has been put on there and reconnect that hose to the booster and the manifold, the power ...