Your intake manifold is the heart of your engine’s breathing system, and when it’s clean, sealed, and tuned right, performance and efficiency thrive. From spotting vacuum leaks to knowing when to ...

My Mitsubishi Montero has had a fun year of hauling dogs and camping around New York’s Hudson Valley. Now that cold weather is here and snow is a reality soon, I’m pulling it off the road to give it a ...

Your car’s intake system is its lifeline for clean, measured airflow — and even small leaks, cracks, or clogs can sap performance and fuel efficiency. From vacuum leaks to clogged filters, these ...

To celebrate HOT ROD's 75th anniversary, we teamed up with CASTROL GTX to bring you some of the stories that exemplify the core of what HOT ROD is and reflect the brand's influence on America's car ...

Gasoline direct injection, or GDI, is one of the most crucial bits of technology in the modern internal combustion engine. In engines equipped with GDI, highly pressurized gasoline is sprayed directly ...

We may receive a commission on purchases made from links. The throttle body is a vital component of a fuel-injected internal combustion engine. It has a pivoting butterfly valve or throttle plate to ...

Late-model cars need certain care to clean the engine bay. There are electronics you have to avoid, as well as potential hazards that must be taken into account. Using too much aggression while hosing ...