When should I use the exhaust brake? (video)
How does engine brake work?
When activated, the engine brake alters the operation of the engine's exhaust valves so that the engine works as a power-absorbing air compressor. This provides a retarding, or slowing, action to the vehicle's drive wheels, enabling you to have improved vehicle control without using the service brakes*. via
Why are engine brakes so loud?
Engine brakes often get a bad rap due to the noise that is attributed to their use. When a semi uses engine brakes you will often hear a loud blat-blat-blat, sometimes referred to as a Jake Bark because the compressed air is forced through the exhaust valve in the engine's cylinder. via
How does the Duramax exhaust brake work?
Hence, the device is called an “exhaust brake”. Such a device almost completely closes the engine's exhaust when the foot throttle is fully released, creating a pumping restriction to generate engine braking. It does this by placing a shut-off valve, called a “butterfly valve”, in the exhaust system. via
Does the 3.0 Duramax have a exhaust brake?
Big Till 3.0
From Diesel manual: Exhaust braking is automatically activated when Tow/Haul Mode is selected. It maintains the vehicle's speed by automatically implementing a shift pattern that uses the engine and the transmission to slow the vehicle. via
How do you use the exhaust brake on a Chevy? (video)