1988 PONTIAC FIERO Service Repair Manual

385-18 STEERING WHEELS AND COLUMNS
(12) 12 O'CLOCK
3. Perform steps 1 thru 11, Remove or Disconnect, Sub 6. Upper bearing retainer (22)
Section C 7. Bowl (31) to lock housing cover (17)
8. Screws (32)
9. Cover assembly (1
7,31) to column
10. 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 same order to 9.0
N.m (89 Lbs.ln.) 11. Perform steps 1 thru 8, Install or Connect, Sub
Section C 12. Perform steps 4 thru 15, Install or Connect, Sub
Section A
13. Perform steps 1 thru 7, Install or Connect, Sub
Section
B
Figure 15. Lock Housing Cover Screw Positions
4. Screws (12)
5. Shroud bowl assembly
(31) and lock housing cover 1171 6. ~c:dr'ews (32)
7. Lock housing cover (1 7) and bowl (31)
8. Upper bearing retainer (22)
9. Actuator rod assembly (26,27) and lock bolt (24)
10. Horn circuit contact and bearing retaining bushing
121 1 11. Yhiust washer (1 3) 12. Upper bearing (20)
13. Switch actuator pivot pin (29)
14. Pivot and switch assembly (23)
15. Actuator sector (1 8)
17. HOUSING, STEERING COLUMN 31. BOWL, FLOOR SHIFT 32. SCREW, BINDING HD CROSS RECESS
Figure 16. Lock Housing Cover and Floor Shin Bowl
Install
or Connect (Figures 2 thru 16)
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. Horn circuit contact and bearing retaining bushing
(21 ) to lock housing cover (1 7)
2. Pivot and switch assembly (23) to lock housing cover
(1 7) 3. Switch actuator pi~ot pin (29)
4. Actuator sector (1 8) 5. Lock bolts (2428) and actuator rodlrack assembly (26,271

STEERING WHEELS AND COLUMNS 385-19
I I FIGURE 385-12 -- KEY RELEASE TILT WHEEL STEERING COLUMN
(MANUAL TRANS)

GENERAL MOTORS CORPORATION
1 - RETAINER
35 - ACTUATOR ASM, IGNITION SWITCH 69 - JACKET ASM, STEERING COLUMN
2 - NUT, HEXAGON JAM
36 - RACK, SWITCH ACTUATOR 70 - ADAF"TER, LOWER BEARING
3 - COVER, SHAn LOCK 37 - SPRING, RACK PRELOAD 71 - BEARING ASM
4
- RING, RETAINING 38 - HOUSING, STEERING COLUMN 72 - RETAINER, BEAR1NG ADAPTER
5 - LOCK, SHAn 39 - SECTOR, SWITCH ACTUATOR
73 - CLIP, LOWER BEARING ADAPTER
6
- CAM ASM, TURN SIGNAL CANCELLING 40 - SCREW, HEX WASHER HEAD 74 - LEVER ASM, T/S MULTlFUNCTBON
7 - SPRING, UPPER
BEARING
41 - GUIDE, SPRING 75 - LEVER ASM, TILT RELEASE
8
- SCREW, BINDING HEAD CROSS RECESS 42 - SPRING, WHEEL TILT 76 - KNOB, HAZARD WARNING SWlTCH
9 - SCREW, ROUND WASHER MEAD
43 - RETAINER, SPRING 77 - SPRING, HAZARD WARNING
10 - ARM ASM, SIGNAL SWITCH 44 - CAP, COLUMN HOUSING COVER END 78 - BUTBON, HAZARD WARNING
11 - SWITCH
ASM, TURN SIGNAL 45 - PIN, SWITCH ACTUATOR PIVOT 79 - SCREW, OVAL HEAD
12
- SEAT, UPPER BEARING INNER RACE 46 - SWITCH ASM, PIVOT &
13 - RACE, INNER 47 - SPRING, PIN PRELOAD
14
- SCREW, PAN HEAD CROSS RECESS 48 - SWITCH ASM, IGNITION
15 - SWITCH
ASM, BUZZER 49 - STUD, DlMMER & IGNITION SWITCH ASSEMBLIES
16 - CLIP, BUZZER SWITCH RETAINING MOUNTlNG
17 - SCREW,
LOCK RETAINING 50 - SCREW, WASHER HEAD 0 - COLUMN
ASM, EiA STEERING
18
- COVER, LOCK HOUSING 51 - PLATE, SHROUD RETAINING 101 - COVER ASM, LOCK HOUSING
19 - LOCK CYLINDER SET, STEERING COLUMN 52 - SCREW,
OVAL HEAD GROSS RECESS 102 - HOUSING
ASM, STEERlNG COLUMN
20
- ACTUATOR, DIMMER SWITCH ROD 53 - PIN, DOWEL 103 - SHAFT
ASM, STEERING
21 -THIS NUMBER NOT USED 54 - PROTECTOR, WIRING
104 - SUPPORT
ASM, STEERING COLUMN
22
- BEARING ASM 55 - SHAFT
ASM, RACE & UPPER HOUSING
23
- BOLT, LOCK 56 - SPHERE,
CENTERING
24
- SPRING, LOCK BOLT 57 - SPRING, JOINT PRELOAD
25
- SHOE, STEERING WHEEL LOCK 58 - SHAFT ASM, LOWER STEERING
26 - SHOE, STEERING WHEEL LOCK 59 - SCREW,
SUPPORT
27
- SHAFT, DRIVE 60 - SUPPORT, STEERlNG COLUMN HOUSING
28
- PIN, DOWEL 61 - PLATE,
LOCK
29
- PIN, PIVOT 62 - FINGER PAD, RELEASE LEVER
30
- SPRING, SHOE 63 - LEVER, KEY RELEASE
31
- SPRING, RELEASE LEVER 64 - SPRING,
KEY RELEASE
32 - PIN, RELEASE LEVER 65 - SHROUD, STEERING COLUMN HOUSING
33
- LEVER, SHOE RELEASE 66 - ROD, DIMMER SWlTCH
34 - BEARING ASM 67 - SWITCH ASM, DlMrVlER
68 - NUT,
HEXAGON

STEERING WHEELS AND COLUMNS 385-21
SUB SECTION A
INCLUDES: SHAR LOCK, TURN SIGNAL CANCELLING
CAM, UPPER BEARING SPRING, UPPER BEARING
SEAT, INNER RACE TURN SIGNAL SWITCH,
BUZER SWITCH, AND LOCK CYLINDER SET
Tools
Requird: J 236534 Lock Plate Compressor J 35689-A Terminal Remover
Remove or Disconnect
(Flgure 2,3,4,5,5,7,8,9)
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 cauee electrical shock when working with wiring.
A STEERING WHEEL B HORN PAD
C SCREWS
1 RETAINER
2 NUT, HEXAGON
B VELCRO FASTENER C HORNASM
1 RETAINER
Figure 2. Removing Horn Pad, Retainer, and Jam Nut
Figure 3. Remove
Stwring Wheel
1. Worn 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 71 2)
9. inner race (1 3)
Figure 4. Removing Shafl hock Retaining Ring
3. COVER, SHAFT 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 Shafl
ROSSRECESS
Figure 6. Turn Signal Swltch Removal Preparation
Figure
7. Turn Signal Switch Removal

385-22 STEERING WHEELS AND COLUMNS
10. Turn si nal to "Right Turnn position 11. Screw f9) and signal switch arm (10) 12. crews (8) 13. Turn signal switch (11). Allow switch to hang freely if re- moval is not necessary.
To remove:
A. Wiring protector (54) B. Hanard knob C.Gently pull wire harness through column housing
shroud (65), column housing (38), and lock housing
cover (1 8)
5. Turn signal switch (I 1) wire harness through lock hous-
ing cover (18), column housing (38), and column hous-
ing shroud (65)
6. Turn signal switch (1 1) and screws (9) and torque to
2.8-4.0
N.m (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 (13)
9. Upper bearing seat (12)
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 6
17. SCREW, LOCK RETAINING INCLUDES:
LOCK HOUSING COVER, COVER END CAP, 19. LOCK CYLINDER SET, STRG COLUMN PIVOT
AND SWITCH ASSEMBLY, DIMMER SWITCH
ROD ACTUATOR, AND TILT SPRING ASSEMBLY
Flgurs 9. Rsmovlng Lock Cylinder Set Tools
Required:
J 23653-A Lock Plate Compressor
J 35689-A Terminal Remover
14. Key from lock cylinder set (19)
15.
Buuer switch (1 5) and clip (1 6)
16. Reinsert key in lock cylinder set (1 9) Remove
or Disconnect
17. Key in "Lock" position
m(Flgure 2,3,4,5,6,7,8,9,10,11,12,13,14) -
18. Lock retaining screw (1 7) 19. Lock cylinder set (1 9) 1. Perform steps 1 thru 19, Remove or Disconnect, Sub
Section A
lnsbll or Connect 2.
Screws (14)
m~(FIguns 2,3,4,56,7,(1,9,10) 3. Lock housing cover (1 8)
4. Tilt release lever (75)
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.
lmporlant
Cruise control equipped columns: Unplug cruise
1. Lock cylinder set
(1 9) control
connector and remove multifunction lever 2. Lock retainin screw (17) and torque to 2.0-3.0 N-m (74).
(1 7.7-2~55 ~!s.ln.) 3. Key in "Runn position 4. Buner switch (1 5) and clip (1 6)

STEERING WHEELS AND COLUMNS 385.23
Figure 11. Lock Housing Cover Screw Positions
74. LEVER ASM, TIS MULTIFUNCTION I G. CRUISE CONTROL PLUG
Figure 12. Removing Lock Housing Cover
1 46. SWITCH ASM, PIVOT 81
Figure 13. Pivot and Switch Removal
REMOVE
RETAINER
n INSTALL
RETAINER
Flgum 14. Tilt Spring Aessmbly Removal
6. Gently pull wire harness throu h column housing (38)
and column housing shroud (657 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 ,12,13,14,1 5)
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
2. !$;rK: retainer (43) 3. Pivot and switch assembly (46)
4. Pivot pin
5. Pivot and switch assembly (46) wire harness through
column housing shroud (65) and column housing (38)
CRUISE CONTROL WIRE CONNECTORS
Figure 15. Dimmer Switch Actuator1 Cruise Control Connectors
6. Dimmer switch rod actuator (20). Bottom edge of
dimmer switch rod actuator (20) should rest on bend in
dimmer switch rod (66)
7. Cover housing end cap (44)
important
Cruise control equipped columns: Plug cruise
control connectors together and install multifunc-
tion lever
(74).
8. Lock housing cover (18)
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. Perform step's 1 thru 17, install or Connect, Sub
Section A

3B5-24 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 Required: J 23653-A Lock Plate Compressor J 35689-A Terminal Remover J 21 854-Q1 Pivot Pin Remover
Remove or Disconnect
(Figure 2 thru 18)
1. Perform stem 1 thru 19. Remove or Disconnect, Sub
Section A . 2. Perform steps 1 thru 10, Remove or Disconnect, Sub
Section B
BEARING ASM
SHOE, STEERING WHEEL LOCK.-/ SHOE, STEERING WHEEL LOCK
PIN. RELEASE LEVER
Figure 18. Lock Housing Cover Assembly, interior
9. Release lever pin (32)
10. Shoe release lever (33)
11. Release lever spring (31)
12. 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) Flgure 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 (75) 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
23. BOLT, LOCK 24. SPRING, LOCK BO 27. SHAFV, DRIVE 28. PIN, DOWEL 36. RACK, SWITCH ACTUATOR 39. SECTOR SWITCH ACTUATOR . .
36. RACK, SWITCH ACTU 38. HOUSING, STEERING 60. SUPPORT, STEERING
Figure 19. Column Housing to Column Supporl
9. Release lever pin (32) Flgum 17. Lock Housing Cover Assembly, Exlerlor 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 sprin (24)
7. Switch actuator sector (39)
14. Hex head bolt 740) 8. Switch actuator rack (36) and rack preload spring (37)

STEERING WHEELS AND COLUMNS 385-25
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 (go), pushing column housing as-
sembly (38) onto column housing support assembly (60). Release tilt release lever to lock shoes (25,26) '16. Remove tilt release lever (75) 17. Pivot pins (29) lubricated with lithium grease 18. Perform steps 1 thru 10, Install or Connect, Sub
Section 8 19. Perform steps 1 thru 17, Install or Connect, 'Sub
Section A
SUB SECTION D
INCLUDES: SHAm ASSEMBLY, COLUMN HOUSING SUPPORT, snlm TUBE ASSEMBLY, IGNITION SWITCH, DIMMER SWITCH, AND LOWER BEARING ASSEMBLY
Tools Required: J 23653-A Lock Plate Compressor J 35689-A Terminal Remover J 21854-01 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
69 JACKET ASM
70 ADAPTER, LOWER BEARING
71 BEARING ASM
72 RETAINER, BEARING ADAPTER
73 CLIP. LOWER BEARING
Figure 20. Lowr Beering Assembly Figure
21. SheR Assembly
COLUMN HOUSING
Figure 22. Column Housing Supporl Assembly
Figure
23. Ignition end Dimmer Switches
4. Remove column from car
NOTICE: 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 (73)
6. Retainer, bearing adapter (72)