The less well-known issue is a somewhat obscure problem shared by any V-6 or V-8 engine that uses the bottom of the intake manifold as a lifter valley cover. The issue is simple by description ...

Popular Mechanics’s automotive experts outline the tools and techniques proven to smoke out even the toughest to find vacuum leaks.

into the intake manifold where the air is evenly distributed into each individual cylinder, into the combustion chamber past the intake valves. If we increase the airflow to an engine, the engine ...

The SPELAB 6.7 intake horn demonstrates an upgraded design through its wide-open structure which enables faster turbocharger spool-up by decreasing airflow resistance. A well-designed intake manifold ...

And if a recent filing to the German Patent and Trademark Office is to be believed, Porsche may be considering such a system for its production vehicles – unsurprising since the entirety of the ...

The manifold absolute pressure sensor reads the amount of pressure or vacuum (also called “engine load”) in the intake manifold, where outside air is divvied up in proper amounts and ...

With some vehicles using dozens of vacuum hoses and the potential for cracks in multi-part intake manifold systems, there are plenty of places for leaks to crop up. The ducting between the ...