4A
Pedal pulsation (Pedal pulsates when depressed for braking)
Condition Possible Cause Action
Pedal pulsation (Pedal pulsates when depressed for braking)
Damaged or loose wheel bearings
Replace wheel bearings.
Distorted steering knuckle or rear axle shafts
Replace knuckle or rear axle shaft.
Excessive disc lateral runout
Check per instructions. If not within specifications, replace or machine disc.
Parallelism not within specifications
Check per instructions. If not with specifications, replace or machine disc.
Rear drums out of round
Check runout.