Steering Gear - Chevrolet 1980 Light Duty Truck Service Manual

3C-4 FRONT SUSPENSION
Probable Cause
Ball joints and steering linkage need lubrication
a.
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)
Ball joints and steering linkage need lubrication
a.
b. Low or uneven front or rear tire pressure
Loose wheel bearings
c.
d. Steering Gear not on high point
Incorrect front wheel alignment (caster)
e.
f. Broken springs
Malfunctioning shock absorber.
g-
h. Broken stabilizer bar, or missing link
Tire and wheel out o f balance, or out of round
a.
b. Worn or loose wheel bearings
c. Worn tie rod ends
d. Worn ball joints
e.
Malfunctioning shock absorber
Low or uneven tire pressure
a.
b. Front or rear brake dragging
Broken or sagging front spring
c.
d. Incorrect front wheel alignment (C am ber)
Incorrect steering gear adjustm ent
a.
Worn steering gear parts
b.
DIAGNOSIS
H A R D S T E E R IN G
a.
b.
c.
d.
e.
POOR D IR E C T IO N A L S T A B IL IT Y
a.
b.
c.
d. Adjust steering gear
e.
f.
g.
h. Replace stabilizer or link
F R O N T W H EEL S H IM M Y
(SMOOTH ROAD SHAKE)
a.
b.
c.
d.
e.
V E H IC L E PULLS TO ONE SIDE
(NO BRAKING ACTION)
a.
b.
c.
d. Check and align front suspension
EXCESSIVE PLA Y IN ST E E R IN G
a.
b. Overhaul Gear
Fig. 3 C -4~ F ro n t Suspension Diagnosis C h art A
Probable Remedy
Lubricate ball joints and linkage
Inflate tires to the proper recommended pressure
Check power steering components for proper operation
Adjust steering gear
Check and align front suspension
Lubricate at proper intervals
Inflate tires to the proper recom mended pressure
Adjust wheel bearings
Check and align front suspension
Replace springs
Diagnose shock absorbers.
Balance tires, check run-out
Adjust wheel bearings
Replace tie rod end
Replace ball joints
Diagnose shock absorbers
Inflate tires to the proper recommended pressure
Adjust brakes
Replace sp'ring
Adjust steering gear
LIG H T T R U C K S ER V IC E M AN UAL