Initial Inspection and Diagnostic Overview
Steering system concerns usually fall into one of four categories:
^ Excessive steering effort.
^ Leaks.
^ Noise.
^ Handling problems.
Some causes of excessive steering effort include:
^ Underinflated tires.
^ Worn or damaged suspension components.
^ Damaged steering column components.
^ Excessive friction in the steering linkage, caused by:
a. improper lubrication.
b. impaired seals allowing moisture and contaminants to enter.
c. improper adjustment of steering components.
Handling problems include such conditions as wandering, loose feel, pulling to one side, and not returning freely to the straight ahead position when the steering wheel is released.
The basis of steering system problems can be found in any or all of the following areas:
^ Steering column.
^ Steering gear.
^ Steering linkage.
^ Power steering pump.
^ Power steering lines and hoses.
^ Power steering fluid.
^ Front suspension components including wheels and tires.
For steering column concerns, perform the following inspections:
1. Verify the customer concern by road testing the vehicle to duplicate the concern.
2. Visually inspect the following components of the steering column:
^ Binding steering column shrouds
^ Bent shafts
^ Bearing damage - Yoke damage (U-joint)
^ Steering system concern
^ Loose fittings
^ Tube boot damage
^ Lower steering column shaft damage
^ Steering column bearing damage
3. If fault is not visually evident, determine the symptom and proceed to the Symptom Chart. Diagnosis By Symptom