When driving down a steep downgrade You should never?
Terms in this set (105) When driving down a steep downgrade, YOU SHOULD NEVER: Shift to NEUTRAL.
What 2 main things must you do with your vehicle for a steep downgrade?
The vehicle should be placed in a low gear and the driver should use engine braking.
What is a steep downgrade?
In some provinces, signs are posted in advance of steep or long downgrades: These signs indicate that you must stop the vehicle in the pull-out area and inspect the vehicle’s braking system before proceeding.
When traveling on a downgrade You should never?
D. Never using the brakes. On a downgrade, you should use the braking effect of your engine as the principal way of controlling your speed. Save your brakes for additional slowing or stopping that may be required by road or traffic conditions.
What are the 2 special conditions where you should downshift?
Cards
| Term What is the most important reason for doing a vehicle inspection? | Definition Safety |
|---|---|
| Term What are the two special conditions where you should downshift? | Definition Before Starting Down a Hill Before Entering a Curve |
| Term When should you downshift automatic transmissions? | Definition when on down grades |
Which is the best description of stab braking?
Stab breaking has always been described to me as pressing firmly on the brakes reducing speed about 10 mph and releasing until speed builds back up the 10 or so mph and repeating. Straight out of DOT manual ? Apply your brakes all the way. Release brakes when wheels lock up.
Are Jake brakes bad for the engine?
The only time a Jake brake will hurt an engine is if the driver gets stupid and allows the weight of the truck going downhill to push the engine RPM’s over the engine’s maximum RPM limit. Then again, letting the engine get pushed past maximum RPM will also cause damage without the Jake brake on.
Do exhaust brakes hurt the engine?
The exhaust brake can cause unintended changes of direction on a slippery road… It will never hurt the engine for it to be on though.
Should I use my exhaust brake all the time?
If you have the type of exhaust or engine brake that is activated only when the brake pedal is engaged, there is probably no need to ever turn it off. Coming from a truck owner/driver with jake brakes, you won’t do any harm leaving the engine brake or exhaust brake on all the time.
Should I drive with the exhaust brake on?
It is recommended to leave it on as much as possible. It helps keep the turbo vanes free of soot, and saves wear and tear on the brakes.
Does an exhaust brake use more fuel?
Engine braking alone requires a longer distance to slow the truck, but does not consume fuel. Using the exhaust brake with engine braking shortens the braking distance, but increases fuel consumption.
What is the purpose of an exhaust brake?
So, how does an exhaust brake work? Essentially, it works by trapping engine pressure in the exhaust system, which in turn forces the engine to rotate slower (backpressure). Normally, pistons travel upward in their cylinder bore to force spent exhaust gasses out of the engine via the exhaust valve.
Why is my exhaust brake not working?
The most likely cause of both the exhaust brake not working and lack of boost on the low-end stem from the variable-vane actuators inside the turbo being clogged with carbon deposits (soot). The TSB also explains in detail how to modify the turbo if it doesn’t already have a cleaning port installed.
How does a 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*.
How does exhaust brake work on 2020 Duramax?
The diesel exhaust brake is activated on vehicles with the 6.6L diesel engine by pressing the Diesel Exhaust Brake button on the center of the instrument panel. (Fig. 12) The button indicator will turn on when the exhaust brake is activated. The exhaust brake will activate more often when the Tow/Haul Mode is selected.
What year Duramax has exhaust brake?
2006-2007
Does a 2015 Duramax have exhaust brake?
The exhaust brake, standard on 2015 Sierra HD models with Duramax diesel engines, is one of those crucial features that operates seamlessly in the background when applied. This helps slow the truck on steep downhill grades, reducing brake distance and brake wear.