The idea behind a five-valve head was to both increase cylinder pressure and revs, making it a good idea in situations where displacement was fixed. A cylinder head with three intake and two ...

Ford will recall 90,736 vehicles as engine intake valves in the vehicles may break while driving, the National Highway Traffic Safety Administration (NHTSA) said on Saturday. The recall impacts ...

The Ford Motor Company (F) is recalling 90,736 automobiles due to engine intake valve issues that could lead to accidents. The National Highway Traffic Safety Administration (NHTSA) reported on ...

Combustion pushes the pistons down from the top of the cylinder. As engines need air to burn fuel, during intake, valves open up and allow ambient air to come in. When the piston reaches the bottom, ...

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 ...

I took it back to... You don't say what make, model or year the car is but it's rather unusual for an inlet valve to break as such. The main reason would be that the timing belt has broken which ...

Ford has finally acknowledged the intake valve problem affecting certain 2.7-liter EcoBoost V6 and 3.0-liter EcoBoost V6 twin-turbocharged engines. The suspect engine population was used in the ...

As a vehicle's engine operates, the intake and exhaust valves open and close rapidly while the pistons move up and down in the cylinder. These mechanical actions require a constant supply of hot oil ...

Another Mazda rotary engine innovation is using an auxiliary intake port valve that can swivel open to increase the amount of air during the intake phase when required for more power at higher RPMs.

The engine intake valves may break while driving, which can result in engine failure and a loss of drive power.

Most modern gasoline and diesel-powered engines found in the cars and trucks seen on today's roadways rely on the four-cycle-engine principles developed in the late 1800s by Nikolaus Otto ...

Ford Motor Co. will recall 90,736 vehicles because engine intake valves in the vehicles may break while driving, the National Highway Traffic Safety Administration said on Saturday. The recall is ...