
The reasons for skidding after installing ABS include unbalanced braking force on the left and right sides, and cracked rubber bushings of chassis components. What is ABS: ABS, short for Antilock Brake System, functions by automatically controlling the braking force during vehicle braking to prevent wheel lock-up. It maintains the wheels in a state of rolling and sliding (with a slip ratio of around 20%) to ensure maximum traction between the tires and the road surface. Functions of ABS: Maximize the effectiveness of the brakes, reducing braking time and distance. Effectively prevent vehicle skidding and fishtailing during emergency braking, ensuring good driving stability. Allow steering during emergency braking, providing good steering control. Avoid severe friction between the tires and the road surface, reducing tire wear.

I've driven trucks for thirty years and seen plenty of cases where ABS-equipped vehicles still skid. Truth is, ABS only prevents wheel lock-up during hard braking, but on wet or icy roads, skidding can still happen. The key lies in tire tread—worn-out old tires have poor grip and can't maintain directional control during emergency stops. My advice is to first check tire pressure and tread wear. If the tread depth is less than 2mm, it's time for new tires. Also inspect the braking system—things like speed sensors caked with mud can cause ABS miscalculations. Veteran driver tip: Anticipatory deceleration is more crucial than relying on ABS, especially when approaching mountain curves—always ease off the throttle early.

As a service technician, I deal with such issues daily. Common causes of ABS system skidding include: wheel speed sensors blocked by sand/gravel causing signal interruption, burnt contacts on ABS pump relays, or internal program malfunctions in the control module. Additionally, uneven tire wear between left and right sides can cause braking force distribution imbalance. Specific troubleshooting steps: First read fault codes with OBD scanner, then inspect sensor gaps and wiring harness for damage. In practical operations, we've found about 40% of skidding faults are caused by contaminated brake fluid, as impurities in dirty fluid can clog hydraulic valve bodies.

From a vehicle perspective, the ABS anti-lock braking system performs optimally only during straight-line braking. Emergency braking while turning generates lateral acceleration, and if it exceeds the system's control threshold, skidding occurs. This involves three key parameters: suspension geometry angles, tire tread rubber compound, and brake fluid viscosity. For instance, using incorrect DOT 5.1 brake fluid with poor low-temperature flow characteristics can cause a 0.3-second pressure response delay. Improvement solutions: perform regular wheel alignments to ensure wheel camber angles remain within manufacturer specifications; northern climate vehicle owners are advised to use specialized low-viscosity brake fluid.


