GMC 1976 ZEO 6083 Maintenance Manual page 534

9- 2 STEERING
STEERING LINKAGE TROUBLE DIAGNOSIS
Condition
A. Excessive Play or
Looseness in Steering
System
Possible Cause
1 . Front wheel bearings
loosely adjusted .
2. Worn couplings or
steering shaft U-joints .
3. Worn upper ball joints .
4. Steering wheel loose on
shaft.
5. Steering gear worm
bearings loosely adjusted .
6. Excessive pitman shaft
to ball nut lash in
steering gear .
7. Loose pitman arm, tie
rods, steering arms or
steering linkage ball
studs. Worn intermediate
rod or tie rod sockets.
Correction
1 . Adjust bearings or replace with
new parts as necessary.
2. Replace.
3. Replace.
4 . Tighten to specified torque .
5 . Adjust preload to specification .
6. Adjust preload to specification.
7 . Replace loose or worn parts.
B. Excessive looseness
in tie rod or inter-
mediate rod pivots, or
excessive vertical lash
in idler support.
1 . Seal damage and leak-
age resulting in loss of
lubricant, corrosion and
excessive wear .
1 . Replace damaged parts as
necessary.
C. Hard Steering-
Excessive Effort Re-
quired at Steering Wheel .
D . Poor Returnability .
1 . Low or uneven tire
pressure .
2. Steering linkage or
ball joints need
lubrication .
3 . Tight or frozen inter-
mediate rod, tie rod or
idler socket .
4. Steering gear to
column misalignment .
5 . Steering gear adjusted
too tightly.
6. Front wheel alignment
incorrect.
1 . Steering linkage or
ball joints need
lubrication .
2. Steering gear adjusted
too tightly.
3 . Steering gear to column
misalignment .
4. Front wheel alignment
incorrect.
1 . Inflate to specified pressures.
2. Lube with specified lubricant.
3 . Lube or replace as necessary.
4. Align column .
5. Adjust preload to specification .
6. Check alignment and correct as
necessary.
1 . Lube with specified lubricant.
2. Adjust preload to specifications .
3. Align column .
4. Check alignment and correct as
necessary.