The power stroke is third, when expanding gases from exploding fuel shove the piston down the cylinder, turning the crankshaft and powering the wheels. The exhaust stroke is the fourth and last ...

The power stroke extracts work from these gases as they expand and force the piston to BDC. In the exhaust stroke, the exhaust valve is open and the combustion products are expelled from the cylinder.

Unfortunately, with the 2008 6.4 Power Stroke, it also stems from the DPF system. The engine uses a post-injection approach, where diesel is dispersed during the conclusion of the exhaust stroke ...

The purpose of headers on a car is to make it easier for the engine to push exhaust gases out of the cylinders. When you look at the four-stroke cycle of an engine, you can see that the engine ...