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3A-4 FRONT SUSPENSION
FRONT -SUSPENSION AND STEERING
TROUBLE DIAGNOSIS CHART
PROBLEM
HARD STEERING
EXCESSIVE EFFORT
REQUIRED AT
STEERING WHEEL
FRONT WHEEL
SHIMMY (SMOOTH
ROAD SHAKE)
VEHICLE PULLS TO
ONE SIDE (NO
BRAKING ACTION)
POOR DIRECTIONAL
STABILITY
POSSIBLE CAUSE
1 . Low or uneven tire
pressure .
2 . Suspension ball joints or
steering linkage need
lubrication .
3 . Tighten or frozen relay
lever pivot or idler lever
pivot .
4 . Steering gear to column
misalignment .
5 . Steering gear adjusted too
tightly .
6 . Front wheel alignment
incorrect .
7 . Relay arm or idler arm
pivot over-torqued .
8 . Power steering partially
or not operative.
2.
3 .
4 .
5 .
6 .
Tire and wheel out of
balance, or out of round.
Worn tie rod ends.
Worn lower suspension ball
joints .
Worn upper suspension ball
joints.
Malfunctioning shock
absorber .
Worn or loose wheel
bearings .
1 . Low or uneven tire
pressure .
2 . Broken or sagging torsion
bar.
3 . Incorrect front wheel
alignment (camber) .
4 . Wheel bearings worn out.
5 . Brakes dragging.
1 . Suspension ball joints and
steering linkage need
lubrication .
2 . Low or uneven front or
rear tire pressure .
3 . Steering gear not on high
point .
4 . Incorrect front wheel
alignment (caster) .
5 . Broken torsion bar .
6 . Malfunctioning shock
absorber.
CORRECTION
1 . Inflate tires to recommended
pressure .
2 . Lubricate ball joints and linkage
with specified lubricant .
3 . Lubricate or replace as necessary .
4 . Align column .
5 . Adjust preload to specification .
6 . Check alignment and ride height
and correct
as
necessary.
7 . Torque to specification .
8 . Check power steering components
for proper operation.
1 . Balance tires, check runout.
2 . Replace tie rod ends.
3 . Replace entire lower control arm
assembly .
4 . Replace upper ball joints .
5 . Replace shock absorbers .
6 . Replace or adjust wheel bearings .
1 . Inflate tires to recommended
pressure .
2 . Replace torsion bar .
3 . Check ride height and align front
suspension .
4 . Replace wheel bearings .
5 . Inspect and adjust brakes.
1. Lubricate at proper intervals.
2 . Inflate tires to recommended
pressure.
3 . Adjust steering gear . See Main-
tenance Manual X-7525, Sec . 9 .
4. Check ride height and align
front suspension .
5 . Replace torsion bar .
6 . Replace shock absorbers.
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