Sep 8, 2025 · Improper functioning of a brake proportioning valve can lead to an increased stopping distance in your vehicle. This occurs as it could excessively lower the pressure on the rear brakes, …

Sep 2, 2025 · A bad brake proportioning valve causes rear wheel lockup, uneven braking, excessive nose dive, and longer stopping distances. Since this valve controls brake bias between the front and …

Pulling to One Side: A clogged proportioning valve can cause your vehicle to pull to one side during braking, as the brake fluid pressure is not evenly distributed between the front and rear wheels.

Sep 26, 2025 · This imbalance can cause the vehicle to pull to one side during braking. Extended Stopping Distances: A failing proportioning valve may prevent proper pressure modulation, resulting …

Mar 27, 2024 · A failing proportioning valve can lead to critical brake issues like rear wheel lockup, uneven performance with vehicle pull, and excessive front-end dive, which compromise vehicle …

Jan 1, 2026 · A failure within the proportioning valve can manifest in several distinct ways, directly impacting your ability to stop safely. One of the most dangerous symptoms is the premature lockup …

Feb 1, 2024 · In the event of a loss of brake pressure, for example a brake line splits, the proportioning valve’s pressure differential valve trips, which stops all fluid from passing through the open line, …

Sep 20, 2025 · Uneven braking can cause your vehicle to pull unexpectedly to one side, creating a dangerous situation. This loss of control is both frightening and stressful, especially in urgent …

Sep 26, 2024 · While it may be possible to drive with a bad proportioning valve, it is not recommended. A malfunctioning valve can lead to unsafe braking performance, including longer stopping distances, …

Technician A says a pull to the right during braking could be caused by a defective metering valve. Technician B says a pull to the left could be caused by a defective proportioning valve.