To ensure normal stopping power, drivers of vehicles equipped with a front brake limiting valve should:

Question

Some pre-1975 vehicles have a front brake limiting valve, which has "normal" and "slippery" settings. The idea behind these valves was to limit the air pressure available to the front brakes when driving on slippery surfaces, and thereby reduce the danger of a front-wheel skid. Studies have found that this is not actually a concern, so if your vehicle has a front brake limiting valve, leave it in the "normal" position.

Accepted Answer

Set the control to normal.

Answer

Set the control to the off position.

Answer

Set the control to neutral.

Answer

Keep the control at the halfway mark.