Chevrolet Light Duty Truck 1973 Service Manual page 201

Probable Cause
a. Ball joints and steering linkage need lubrication
b. Low or uneven front tire pressure
c. Power steering partially or not operative
d. Steering gear not properly adjusted
e. Incorrect front wheel alignment (manual steering)
a. Ball joints and steering linkage need lubrication
b. Low or uneven front or rear tire pressure
c. Loose wheel bearings
d. Steering Gear not on high point
e. Incorrect front wheel alignment (caster)
f. Broken springs
g- Malfunctioning shock absorber.
h. Broken stabilizer bar, or missing link
a. Tire and wheel out of balance, or out of round
b. Worn or loose wheel bearings
c. Worn tie rod ends
d. Worn ball joints
e. Malfunctioning shock absorber
a. Low or uneven tire pressure
b. Front or rear brake dragging
c. Broken or sagging front spring
d. Incorrect front wheel alignment (Camber)
a. Incorrect steering gear adjustment
b. Worn steering gear parts
FRONT SUSPENSION D IA G N O S IS
HARD STEERING
POOR DIRECTIONAL STABILITY
FRONT WHEEL SHIMMY
(SMOOTH ROAD SHAKE)
VEHICLE PULLS TO ONE SIDE
(NO BRAKING ACTION)
EXCESSIVE PLAY IN STEERING
Fig. 40—Front Suspension Diagnosis
FRONT SU S PEN SIO N
Probable Remedy
a. Lubricate ball joints and linkage
b. Inflate tires to the proper recommended pressure
c. Check power steering components for proper operation
d. Adjust steering gear
e. Check and align front suspension
a. Lubricate at proper intervals
b. Inflate tires to the proper recommended pressure
c. Adjust wheel bearings
d. Adjust steering gear
e. Check and align front suspension
f. Replace springs
g. Diagnose shock absorbers.
h. Replace stabilizer or link
a. Balance tires, check run-out
b. Adjust wheel bearings
c. Replace tie rod end
d. Replace ball joints
e. Diagnose shock absorbers
a. Inflate tires to the proper recommended pressure
b. Adjust brakes
c. Replace spring
d. Check and align front suspension
a. Adjust steering gear
b. Overhaul Gear (See sec. 9)
3-27
LIGHT DUTY TRUCK SERVICE MANUAL