Fault detection: First, first remove the steering wheel heavy fault. The steering gear on the adjustment of the bolt out of a little, the car, in situ to play the direction, not effective, then the point of failure to the pipeline and steering pump, first check the tubing is not deflated and deformation, no exception. Then the pump will be removed inspection, no problems. At this point maintenance ideas into a deadlock, simply put this fault shelved, to deal with the next failure. The general cause of brake deviation is:
1) tire pressure on both sides is inconsistent;
2) brake discs and brake pads are contaminated;
3) brake friction plate wear;
4) The clamp is loose or misaligned;
5) proportional valve failure;
6) Front wheel misalignment;
7) air in the braking system;
8) brake oil circuit abnormal (tubing deflated, etc.).
The above items were carefully checked. At this point the decision to remove the front axle failure point parts all the inspection, the steering gear out of the ball after the ball, when the brake disc, the right side of the lot more than the left, regret! Finally find the point of failure, The ball head, the ball out and found the ball has been stuck under the ball. At that time, when the ball was removed: the ball stuck may also cause a heavy reason to turn the new ball on the ball, the car, in situ to fight the direction of turning to a heavy phenomenon disappeared. Go out to test, step on the direction of the brake deviation fault disappeared.