1988 PONTIAC FIERO Service Repair Manual

3B5-26 STEERING WHEELS AND COLUMNS
7. Lower bearing ASM (71)
8. Lower bearing adapter (70) - 9. Shaft assembly (55-58)
10. Lower shaft (58)
11. Sphere (56) from upper shaft (55) 12. Preload spring (57) from sphere (56)
13. Screws (59)
14. Housing support assembly (60) and dimmer switch rod
If%
15. i<'si release lever (63) and spring (64) 16. Hex nut (68) and hex head bolt (50)
17. Dimmer switch (67)
18. Mounting stud (49)
19. Gear shift lever bowl (65) Ignition switch (48)
and
mountin stud (49)
Preload spring (57) and sphere 156) to upper shaft (55)
Lower shaft (58) to upper shaft (55). block tooth on
shaft end of upper shaft (55) at 12 o'clock position;
notch at end of lower shaft (58) at 4 o'clock position
Shaft assembly
(55-58), lubricated with lithium grease,
to column
Column housing assembly (38) to column. Position col-
umn housing
assemby (38) and align switch actuator
rack (36) with pin on end of actuator rod (48). Pull back
on tilt release lever
(75), pushing column housing as-
sembly (38) onto column housing support assembly
(60). Release tilt release lever (75) to lock shoes
(2526) Remove tilt release lever 175) 12. Lower bearing adapter (70) '
13. Bearing, ASM (71)
In~bll or Connect 14. Retainer (72)
(Figure 2 thru 26) 15. Clip (73)
WTICE: Ensure all fasteners are securely seated before aaplying required torque. Failure to do so may result in component damage or malfunctioning of steering column.
1. Column housing shroud (65) to jacket (69)
2. Dimmer switch rod (66) to housing support (60)
3. Key release lever (63) and spring (64)
4. Housing support assembly (60) and screws (59) and
torque to
5.5-12.0 N.m (48.68-106.2 Lbs.ln.) 5. Actuator rod assembly (35) to track in housing support
(60)
35. ACTUATOR ASM, IGNITION SWITCH 60. SUPPORT, STRG COL HSG TOP
SURFACE
OF HOUSING
Figure 26. Dimmer Switch Adjustment
17. Dimmer switch (67), hex nut (68), and hex head bolt
(50). Adjust dimmer switch (67)
18. Column to car dash
19. Tilt release lever (75)
20. Perform steps 1 thru 17, Install or Connect, Sub
Section C
21. Perform steps 1 thru 10, Install or Connect, Sub
Section B
Figure 24. Actuator Rod to Housing Support 22. Perform steps 1 thru 17, Install or Connect, Sub
Section A
48. SWITCH ASM, IGN & BEAM CHANGE
Flgure 25. lgnitlon Switch Adjustment

STEERING WHEELS AND COLUMNS 385-27
FIGURE 3B5-14 -- TILT WHEEL STEERING COLUMN
(AUTO TRANS)

NAW STEER NG GEAR
GENERAL MOTORS CORBOR
1 - RETAINER
35 - ACTUATOR ASM, IGNlTlON SWITCH
2
- NUT, HEXAGON JAM 36 - RACK, SWITCH ACTUATOR
3
- COVER, SHAFT LOCK
37 - SPRING, RACK PRELOAD
4
- RING, RETAINING 38 - HOUSING, STEERING COLUMN
5
- LOCK, SHAFT
39 - SECTOR, SWITCH ACTUATOR
6
- CAM ASM, TURN SIGNAL CANCELLING 40 - SCREW, HEX WASHER HEAD
7
- SPRING, UPPER BEARING
41 - GUIDE, SPRING
8 - SCREW, BINDING HEAD CROSS RECESS 42 - SPRING, WHEEL TILT
9 - SCREW, ROUND WASHER HEAD
43 - RETAINER, SPRING
10
- ARM ASM, SIGNAL SWITCH 44 - CAP, COLUMN HOUSING COVER END
11 - SWlTCH ASM, TURN SIGNAL 45 - PIN, SWlTCH ACTUATOR PIVOT
12 - SEAT, UPPER BEARING INNER RACE
46 - SWITCH ASM, PIVOT &
13 - RACE, INNER 47 - SPRING, PIN PRELOAD
14
- SCREW, PAN HEAD CROSS RECESS 48 - MOUSING,
IGN SWITCH INHIBITOR
15 - SWITCH ASM, BUZZER 49 - SCREVV, VVASHER MEAD
16
- CLIP, BUZZER SWITCH RETAINING 50 - SWITCH, IGNITION
17 - SCREW,
LOCK RETAINING 51 - SWITCH, PIVOT & PULSE
18
- COVER, LOCK HOUSING 52 - SCREW,
OVAL HEAD CROSS RECESS
19
- LOCK CYLINDER SET, STEERING COLUMN 53 - PIN, DOWEL
20
- ACTUATOR, DIMMER SWITCH ROD 54 - PROTECTOR, WlRlNG
21 -THIS
NUMBER NOT USED 55 - SHAFT
ASM, RACE & UPPER
22
- BEARING ASM 56 - SPHERE,
CENTERING
23
- BOLT, LOCK 57 - SPRING,
JOINT PRELOAD
24
- SPRING, LOCK BOLT 58 - SHAFT ASM, LOWER STEERING
25
- SHOE, STEERING WHEEL LOCK 59 - SCREW,
SUPPORT
1 26 - SHOE, STEERING WHEEL LOCK 60 - SUPPORT,
STEERING COLUMN HOUSING
27
- SHAR, DRIVE 61 - PLATE, LOCK
28
- PIN, DOWEL 62 - SHROUD,
STEERING COLUMN HOUSING
29
- PIN, PIVOT 63 - ROD,
DIMMER SWITCH
30
- SPRING, SHOE 64 - SWITCH
ASM, DIMMER
31
- SPRING, RELEASE LEVER 65 - NUT,
HEXAGON
32
- PIN, RELEASE LEVER 66 - JACKET
ASM, STEERING COLUMN
33
- LEVER, SHOE RELEASE 67 - ADAPTER, LOWER BEARING
34
- BEARING ASM 68 - BEARING
ASM 69
- RETAINER,
BEARlNG ADAPTER
70
- CLIP, LOWER BEARING ADAPTER
ASSEMBLIES
0 - COLUMN ASM, E/A STEERING
101 - COVER ASM, LOCK HOUSlNG
102
- HOUSING ASM, STEERlNG COLUMN
103
- SHAFT ASM, STEERING
104 - SUPPORT ASM, STEERlNG COLUMN
HOUSlNG

STEERING WHEELS AND COLUMNS 3B5-29
SUB SECTION A
INCLUDES: SHAm LOCK, TURN SIGNAL CANCELLlNG CAM, UPPER BEARING SPRING, UPPER BEARING
SEAT, INNER RACE TURN SIGNAL SWITCH, BUZZER
SWITCH,
AND LOCK CYLINDER SET
Tools
Requird: J 23653-A Lock Plate Compressor J 35689-A Terminal Remover
Remove or Disconnect
(Figure
,2,3,4,5,6,7,8,9)
NOTICE: Wheels of car must be straight ahead. Failure to
do so may cause improper alignment of some components
during installation, resulting in column malfunction.
Key in
"Lock position. Failure to do so will cause steering
wheel to turn, (see above).
CAUTION: Disconnect battery. Failure to do so may
cause electrical shock when working with wiring.
HORN '. 72' CONTACT
A STEERING WHEEL
B HORN PAD C SCREWS 1 RETAINER 2 NUT, HEXAGON
A STEERING WHEEL
B VELCRO FASTENER C HORNASM
1 RETAINER
2 NUT, HEXAGON L!lY -
Figure 2. Removing Horn Pad, Retainer, and Jam Nut
Figure 3. Remove
Stwring Wheel
1. Horn pad and electrical connectors
2. Retainer (1) and jam nut (2) 3. Steering wheel using J 1859-03
4. Shaft lock retaining ring (4) using J 23653-A to depress
shaft lock (5)
5. Shaft lock (5) and shaft lock cover (3)
6. Turn signal cancelling cam (6)
7. Upper bearing sprin (7) 8. Upper bearing seat R 2) 9. Inner race (13)
4. RING, RETAINING
5. LOCK, SHAFT
4A. EXTRA RINGS
Figure 4. Removing Shafl Lock Retaining Ring
3. COVER, SHAm LOCK 5. LOCK, SHAFT 6. CAM ASM, TURN SIG CANCELLING 7. SPRING, UPPER BEARING
12. SEAT, UPPER BEARING INNER RACE
13. RACE, INNER
Figure 5. Removing Components from Upper Shan
Figure 6. Turn Signal Swltch Removal Preparation
11. SWITCH ASM;TURN SIGNAL 54. PROTECTOR, WIRING
Flgure 7. Turn Signal Switch Removal

385-30 STEERING WHEELS AND COLUMNS
10. Turn si nal to "Right Turn" position
11. Screw 79) and signal switch arm (10)
12. Screws (8)
13. Turn signal switch (11). Allow switch to hang freely if re-
moval is not necessary.
To remove:
A. Wiring protector (54)
B. Hazard knob
C.Gently pull wire harness through column housing
shroud (62), column housing (38), and lock housing
cover (1 8)
Figure 8. Buzzer Switch Removal
17. SCREW, LOCK RETAINING 19. LOCK CYLINDER SET, STRG COLUMN
Figure 10. Wire Harness Through Column
5. Turn signal switch (1 1) wire harness through lock hous-
ing cover
(la), column housing (38), and column hous-
ing shroud (62)
6. Turn
sianal switch (1 1) and screws (9) and torque to 2.8-4.0 %km (24.78-35.4 Lbs.ln.) 7. Signal switch arm (10) and screw (9) and torque to 1.7- 2.8 N-m (1 5.05-24.78 Lbs. In.)
8. Inner race (1 3) 9. Upper bearing seat (1 2)
10. Upper bearing spring (7)
11. Turn signal cancelling cam (6)
12. Shaft lock (5)
13. Shaft lock retaining ring (4) using
J 23653-A to depress
shaft lock (5)
14. Steering wheel
15. Jam nut (2) and retainer (1
) 16. Screws to back of steering wheel, horn pad
17. Wiring protector (54)
SUB SECTION B
INCLUDES: LOCK HOUSING COVER, COVER END CAP,
PIVOT AND SWITCH ASSEMBLY, DIMMER SWITCH
ROD ACTUATOR, AND TILT SPRING ASSEMBLY
Figure 9. Removing Lock Cyilnder Set Tools
Rwuired: J 23653-A Lock
Plate Compressor J 35689-A Terminal Remover
14. Key from lock cylinder set (19)
15. Buzzer switch (1 5) and clip (1 6)
16. Reinsert key
in.lock cylinder set (19)
17. Key in "Lock" position
18. Lock retaining screw (1 7)
19. Lock cylinder set (1 9)
Install or Connect
(Figures
2,3,4,5,6,7,8,9,10)
Remove or Dlsconnect (Figure 2,3,4,5,6,7,8,9,10,11,12,13,14)
1. Perform steps 1 thru 19, Remove or Disconnect, Sub
Section A
2. Screws (1 4)
3. Lock housing cover (1 8)
4. Tilt release lever
5. Housing cover end cap
(44), and dimmer switch rod
NOTICE: Ensure all fasteners are securely seated before actuator
(20)
applying required torque. Failure to do so may result in
component damage or malfunctioning of steering column.
7 important
Cruise control equipped columns: Unplug cruise
1. Lock cylinder set (1 9) control
connector and remove multifunction lever
2. Lock retaining screw (17) and torque to 2.0-3.0 N.m (1 7.7-26.55 Lbs.ln.) 3. Key in "Run" position
4. Buuer switch (1 5) and clip (16)

STEERING WHEELS AND COLUMNS 385-31
Figure 11. Lock Housing Cover Screw Positions
F. LEVER ASM, TIS MULTIFUNCTION
Figure 12. Removing Lock Housing Cover
6. Gently pull wire harness through column housing (38)
and column housing shroud (62)
7. Pivot pin
8. Pivot and switch assembly (46)
9. Spring retainer (43)
10. Spring (42) and spring guide
(41)
Install or Connect
(Figures 2,3,4,5,6,7,8,9,10,11,12,13,14,15)
NOTICE: Ensure all fasteners are securely seated before
applying required torque. Failure to do so may result in
component damage or malfunctioning of steering column.
1. Spring guide (41) and spring (42) coated with lithium
rease
2. gpring retainer (43)
3. Pivot and switch assembly (46) 4. Pivot pin 5. Pivot and switch assembly (46) wire harness through
column housing shroud (62) and column housing (38)
CRUISE CONTROL WIRE CONNECTORS
6. Dimmer switch rod actuator (20). Bottom edge of
dimmer switch rod actuator (20) should rest on bend in
dimmer switch rod (63)
7. Cover housing end cap (44)
1 43. RETAINER, SPRING REMOVE
RETAINER
INSTALL
RETAINER.
Figure 14. Tlit Sprlng Aswmbly ~emovel
Cruise control equipped columns: Plug cruise
control connectors together and install multifunc-
tion lever (89).
8. Lock housing cover (1
8) 9. Screws (14). Tighten screw in 12 o'clock position first,
screw in 8 o'clock position second, and screw in 4
o'clock position third. Torque in the same order to
7.0- 11 .O N.m (61.95-97.35 Lbs.ln.) 10. Periorrn steps 1 thru 17, Install or Connect, Sub
Section A

3B5-32 STEERING WHEELS AND COLUMNS
SUB SECTION C
INCLUDES: COLUMN HOUSING, LOCK SHOES, AC-
TUATOR SECTOR ASSEMBLY, SWITCH ACTUATOR
RACK, BEARINGS, AND LOCK BOLT ASSEMBLY
Tools Rsqulrd: J 23653-A Lock Plate Compressor J 35689-A Terminal Remover J 21854-01 Pivot Pin Remover
Remove or Disconn~t (Flgure 2 thru 18)
22,34. BEARING ASM 25. SHOE, STEERING WHEEL LOCK
26. SHOE, STEERING WHEEL LOCK
32. PIN, RELEASE LEVER
1. Perform steps 1 thru 19, Remove or Disconnect, Sub Figure 18. Lock Housing Cover Assembly, Interior Section A 2. Perform steps 1 thru 10, Remove or Disconnect, Sub
Section B 9. Release lever pin (32)
10. Shoe release lever (33)
11. Release lever spring (31)
52. Dowel pin (28)
13. Lock shoes (25,26) 14. Lock shoe springs (30)
15. Bearings (22,34) 16. Hex head bolt (40)
17. Lock bolt spring (24)
18. Lock bolt (23)
install or Connect (Figures 2 thru 19)
NOTICE:
Ensure all fasteners are securely seated before
applying required torque. Failure to do so may result in
component damage or malfunctioning of steering column.
1. Bearings
(22,34) to column housing (38) Figure 16. Removing Pivot Pins 2. Drive shaft (27)
3. Switch actuator sector (39) . , 4. Lock shoes (25,26) 3. Pivot pins (29) using J 21 854-01 5. Dowel pin (28)
4. Reinstall tilt release lever
6. Lock shoe springs (30)
5. Column housing assembly (38). Pull back on tilt release
7. Release lever spring (31)
lever and pull housing (38) down and away from 8. Shoe release lever
(33) \, column
VEERING WHEEL LOCK ATOR ASM, IGNITION SWlT
36. FIACK, SWITCH ACTU 38. HOUSING, STEERING 60. SUPPORT, STEERING
Figure 19. Column Housing to Column Support
9. Release lever pin (32) Figurs 17. Lock Housing Cover Assembly, ExPerior 10. Rack preload spring (37)
11. Switch actuator rack (36) to switch actuator sector (39) . , 12. Lock bolt (23)
6. Drive shaft (27)
13. Lock bolt spring (24)
7. Switch actuator sector (39)
14.
Hex head bolt (4Q)
8. Switch actuator rack (36) and rack preload spring (37)

STEERING WHEELS AND COLUMNS 385-33
15. Column housing assembly (38) to column. Position col-
umn housing assembly (38) and align switch actuator
rack (36) with pin on end of actuator rod (35). Pull back
on tilt release lever pushing column housing assembly
(38) onto column housing support assembly (60). Release tilt release lever to lock shoes (2526) 16. Remove tilt release lever 17. Pivot pins (29) lubricated with lithium grease 18. Perform steps 1 thru 10, Install or Connect, Sub
Section B 19. Perform steps 1 thru 17, Install or Connect, Sub
Section A
SUB SECTION D
INCLUDES: SHAR ASSEMBLY, COLUMN HOUSING SUPPORT, SHIFT TUBE ASSEMBLY, IGNITION SWITCH, Figure 22. Column Housing Supporl Assembly
DIMMER SWITCH, AND LOWER BEARING ASSEMBLY
OLUMN HOUSING
Tools Required: J 23653-A Lock Plate Compressor J 35689-A Terminal Remover J 21 854-01 Pivot Pin Remover
Remove or Disconnect (Figure 2 thru 23,27)
NOTICE: If car has been in an accident, remove column
from car and inspect for damage (Figure 27).
1. Perform steps 1 thru 19, Remove or Disconnect, Sub
Section A
2. Perform steps 1 thru 10, Remove or Disconnect, Sub
Section B 3. Perform steps 1 thru 18, Remove or Disconnect, Sub
Section C
, LOWER BEARING
BEARING ADAPTER
Figure 20. Lower Bearing Assembly
55. SHAFT ASM, RACE & UPPER 56. SPHERE, CENTERING 57. SPRING JOINT PRELOAD 49
i0
48
ITCH INHIBITOR A 49 50 64 ASM, DIMMER
Figure 23. Ignition and Dimmer Switches
4. Remove column from car
MOTICE: Once steering column is removed from car, the
column is extremely susceptible to damage. Dropping
column assembly on its end could collapse steering shaft or
loosen plastic injections which maintain column rigidity.
Leaning on column assembly could cause jacket to bend or
deform. Any of the above damage could impair column's
collapsible design.
If it is necessary to remove steering
wheel, use only the specified steering wheel puller. Under
no conditions should the end of shaft be hammered on as
hammering could loosen plastic injections which maintain
column rigidity.
5. Clip, lower bearing adapter (70) 6. Retainer, bearing adapter (69) 7. Bearing ASM (68) 8. Adapter, lower bearing (67)
Figure 21. ShaR Assembly