Chevrolet 1977 light duty truck Service Manual page 282

Probable Cause
a.
Ball joints and steering linkage need lubrication
b. Shock absorber loose or bushings worn
.
c Worn control arm bushings
d. Worn tie rod ends
c. Worn or loose wheel bearings
f. Loose stabili/er bar
o
Loose wheel nuts
h. Spring improperly positioned
i. Loose suspension bolts
a. Tire and wheel out of balance
b. Tire and wheel out of round
.
c Blister or bump on tire
d. Improper shock absorber action
Underinflated or overinflated tires
a.
b. Improper toe-in
c. Wheels out of balance
d. Hard Driving
e. Over loaded vehicle
a. Toe-in incorrect
b. Excessive speed on turns
c. Tires improperly inflated
d. Suspension arm bent or twisted
a. Front shock absorbers defective
b. Worn ball joints
c. Wheel bearings incorrectly adjusted or worn
d. Wheel and tire out of balance
e. Excessive tire or wheel runout
NOISE IN F R O N T END
W HEEL TR A M P
EXCESSIVE OR U N E V E N T IR E WEAR
SC U FFED TIR ES
CUPPED TIR ES
Probable Remedy
Lubricate at recommended intervals
a.
b. Tighten bolts and/or replace bushings
c. Replace bushings
d. Replace tie rod ends
e. Adjust or replace wheel bearings
f. Tighten all stabilizer bar attachments
g- Tighten the wheel nuts to proper torque
h. Reposition
i. Torque to specifications or replace
Balance wheels
a.
b. Replace tire
c. Replace tire
d. Replace shock absorber
Inflate tire to proper recommended pressure
a.
b. Adjust toe-in
Balance wheels
c.
d. Instruct driver
e. Instruct driver
a. Adjust toe-in to specifications
b. Advise driver
Inflate tires to proper recommended pressure
c.
d. Replace arm
a. Replace shock absorbers
b. Replace ball joints
Adjust or replace wheel bearings
c.
d. Balance wheel and tire
e. Compensate for runout