Pontiac Fiero 1988 Service Manual page 144

STEERING, SUSPENSION, TIRES AND WHEELS DIAGNOSIS 3-3
STEERING COLUMN DIAGNOSIS
LOCK SYSTEM
Will Not Unlock
If
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Inspect
Shear flange on sector shaft collapsed
Damaged lock bolt
Damaged lock cylinder
Damaged housing
Damaged sector
Damaged rack
Damaged park lock cable
W i l l Not L o c k
Inspect
• Lock bolt spring broken or worn
• Damaged sector
• Damaged lock cylinder
• Burr on lock bolt
• Damaged housing
• Improper shift linkage adjustment
• Damaged rack
• Interference between bowl and rack coupling
• Ignition switch stuck
• Actuator rod restricted
• Sector installed incorrectly
• Park lock cable damaged
High Lock Effort
1F| Inspect
• Lock cylinder damaged
• Ignition switch damaged
• Rack preload spring broken or deformed
• Burrs on sector, rack, housing, support or
actuator rod coupling
• Bent sector shaft
m Damaged rack
m Extreme misalignment of housing to cover
m Distorted coupling slot in rack
m Bent actuator rod
• Ignition switch mounting bracket bent
m Actuator rod restricted
• Improper shift linkage adjustment
W i l l S t i c k In "Start"
Inspect
m Actuator rod deformed
m Check items under "High Lock Effort"
Key Cannot Be Removed in
"Off-Lock"
| y | Inspect
• Damaged lock cylinder
• Linkage mis-adjusted
Lock Cylinder Can Be Removed
15 lnspect
• Lock cylinder retaining screw missing
High Effort In Lock Cylinder Between "Off"
and
"Off-Lock"
Inspect
• Distorted rack
Lock Bolt Hits Shaft Lock In "Off" Position and
"Park"
Inspect
• Ignition switch is not set correctly
COLUMN
Noise In Column
V
15
Inspect
Joints from the column to the steering gear loose
Column not correctly aligned
Horn contact ring not lubricated
Lack of grease on bearings
Loose sight shields
• Lower or upper steering shaft bearing worn or
broken
• Shaft lock snap ring not seated
• Spherical joint not lubricated
High Steering Shaft Effort
Inspect
• Column assembly misaligned
• Improperly installed or deformed dust seal
• Damaged upper or lower bearing
• Flash on I.D. of shift tube
• Tight intermediate steering shaft universal join
High Shift Effort (Automatic with Column Shift]
Inspect
Column not aligned correctly in car
Wave washer with burrs
Improperly installed dust seal
Lack of grease on seal or bearing
Improper screws used for ignition switch
Burr on upper or lower end of shift tube
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