Carburetors with vacuum lines are still found on classic vehicles and small-displacement engines — but what is the vacuum ...

We may receive a commission on purchases made from links. No matter the type of car you drive, whether a diesel truck, a hybrid SUV, or a turbocharged sedan, a vacuum system is really important. The ...

As long as there have been cars, there have been gadgets that promise revolutionary improvements in performance and mileage. And every time there's a spike in fuel prices, these gadgets proliferate ...

EGR stands for exhaust gas recirculation, and the EGR valve is part of a system that does as the name implies: recirculate exhaust gas back into the engine’s intake manifold for a return trip to the ...

The volumetric efficiency table is probably the most important one in any ECU.The vertical axis is engine load, in this case, MAP, manifold absolute pressure, which is the pressure inside the intake ...

Toward the end of 2000s, Ford found itself in a bit of a pickle with its famous pony car, the Mustang. Pony cars from other marques, like the Chevy Camaro and Dodge Challenger, were on the cusp of ...

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 ...

Have you ever inspected your vehicle's engine compartment and noticed that your engine has a couple of oil slicks on the ground next to it? A vacuum leak can be caused by just about anything from a ...

Popping the hood of a new Mercedes-Benz 300SL Gullwing must have been quite an experience for most enthusiasts in the Fifties. For starters, the 3.0-liter straight-six sat canted at a fifty degree ...

A stock LS3 rec-port intake manifold is hard to beat and only costs $299. When Chevy went back to the drawing board after the success of the cathedral-port Gen III LS1 small-block V-8, it realized ...

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 ...