B
FAULT TESTING
Read all of SAFETY and this section before attempting any procedure. Pay particular attention to Notices, Cautions, Warnings and Dangers.
91
Repair and Service Manual
10002660
FAULT TESTING
SUSPENSION AND STEERING
Fig. 1 Suspension and Steering Fault Diagnosis
Condition
Possible Cause
Correction
UNEVEN TIRE WEAR
Incorrect tire pressure
Inflate to recommended pressure
Improper alignment (Incorrect toe in)
Align front tires
STIFF STEERING
Water has entered steering box and can
freeze in cold conditions
Remove steering column, pinion and
bearing and remove water before adding
grease; Inspect gasket for good seal
Excessive grease in steering box has
moved into steering rack bellows
Raise the vehicle and observe the rack
bellows while moving the steering from
lock to lock
Any distortion of the bellows can indicate
an excess of grease has accumulated in
the bellows
Remove the bellows and remove excess
grease
Insufficient lubricant in king pins, tie rod
ends, idler bushing, rack tensioner or
steering box
Add one shot of lubricant to each grease
fitting and operate steering from lock to
lock. Do not over grease
If steering does not return to acceptable
condition, proceed to next step
Bent rack
Remove rack and place on flat surface
with rack teeth up; If a 0.015” (0.381 mm)
feeler gauge will pass under the rack, the
rack must be replaced
PLAY IN STEERING
Steering wheel loose
Inspect splines - replace steering wheel if
required; Tighten steering wheel nut
Steering components worn
Replace
Loose wheel bearings
Adjust or replace
VIBRATION
Steering components worn
Replace
Loose wheel bearings
Adjust or replace
Out of round tires, wheels, or brake
drums
Inspect and replace if out of round
STEERING PULLS TO ONE
SIDE
Incorrect tire pressure
Inflate to recommended pressure
Dragging wheel brakes
Service brake system
Suspension component failure
Repair
Alignment incorrect
Align
