1988 PONTIAC FIERO Service Repair Manual

9H-2 SEATS - I: STYLE
Fig. 2 - Seat Belt Fastener Torque Chart
2.
Let the belt retract a minimum of 178 mm (7").
3. Extract the belt for 25 mm to 76 mm (1" to 3")
and release the belt. The comfort lock must
engage and prevent retraction.
4. Extract belt 25 mm to 76 mm (1" to 3") and
release. The belt must return to the comfort lock
position previously set. Full retraction is a failure
of the system.
5. Extract belt 178 mm (7") and release. The belt
must retract fully without locking.
Removal and Installation
Refer to appropriate illustration for removing
and installing lap belts and shoulder belts (Figs. 2
through 10). Tighten
all lap and shoulder belt anchor
bolts as specified.
NOTICE: See NOTICE on page 9H-1 of this
section.
Check position of factory installed lap belt and
shoulder belt anchors and reinstall anchor plates in
same position as shown in illustrations.
FRONT SEAT SHOULDER BELT RETRACTOR
ASSEMBLY
Removal and Installation
1. Removal
of the headlining is not necessary for
access to the shoulder belt retractor.
2. Separate shoulder belt guide from the shoulder
belt (Fig. 4).
3. Remove bolts holding retractor in place (Fig. 5).
4. Install retractor in the exact same position and
secure to roof rail anchorage with 20 to
24 Fd-m
(15 to 17 ft-lb) torque.
5. To complete installation, reverse removal
procedures.
FRONT SEAT
I REAR SEAT 1
Fig. 3 - Front and Rear Shoulder and Lap Belt
Installation
CHILD SEAT
The child seat may be used only in a forward
facing seating location. When the child seat is used in
the front seat location, it is easily installed by
connecting the child seat top strap to the belt at the
seating position immediately to the rear (Fig. 11). The
outboard belt should be fully extended on the retractor.
Occupants should not be allowed to sit at locations
where the belts are being utilized for the child seat.
If a child seat is to be used, in
a second seat
position, a special dealer-installed anchor must be used
to anchor the child seat top strap. In order to assure
the correct top strap angle, the child seat is only to be
used at the seating position for which the top strap
anchor is installed. The following instructions explain
how to install the anchor for the child seat top strap.

VlEVV F SCREW
Fig. 5 - Front Seat Shoulder Belt Retractor
Top Strap Anchor Installation (Fig. 12)
All hardware should be supplied or available
from the child seat manufacturer. Be sure the child seat
position does not conflict with any additional
requirements provided by the manufacturer.
1. Open hatch lid.
2. Locate
and center-punch a drill point on the
RH
or LH vertical wall of the storage compartment
as shown in View A, Figure 12.
3. Cut a 9 mm (1 1/32") hole through the carpet and
insulation.
4. Drill a 9 mm (1 1/32") hole as marked in step 2.
SEATS - F STYLE 9H-3
1. SLEEVE
2. WIRING HARNESS (DRIVER" SIDE ONLY)
3. SPACER
4. BOLT, TYPE 5
6. PLUQ
8. STITCHES
09261 9.9H-F
Fig. 6 - Front Seat Inner Belt Attachment
1. SHOULDER BELT
2. LAP BELT
Fig. 7 - Front Seat Outer Belt Attachment

9H-4 SEATS - F STYLE
Fig. 8 - Rear Seat Outer Belt Attachment
BOLT,
TYPE 8
TOP STRAP
REAR LAP
,,
BELT
LATCH PLATE
TOP STRAP
HOOK LAP BELT
Fig. 11 - Front Seat Installation of Child Seat
CAUTION: Any holes penetrating to
the exterior of the vehicle must be
sealed. Apply a sealant between the
anchor bolt washers and the sheet
metal to prevent carbon monoxide
from entering the vehicle. In the event
that the child seat anchorage
assembly is removed, all bolt holes
penetrating to the exterior of the
vehicle must be resealed.
5. Apply butyl or acrylic caulking sealer around
outside of hole.
6. Install top strap anchor bracket (4) and secure
with bolt
(9, washer (1) and locknut (2). Tighten
locknut.
7. Install child seat and secure with child seat belt
according to manufacturer's instructions.
Fig. 9 - Rear Seat Inner Belt Attachments

SEATS - F STYLE 9H-5
8. 2-8/2' WASHER
2. LOCKNUT
9. SEALER (BUTYL OR ACRYLIC CAULKING)
4. ANCHOR BRACKET
6. BOLT (5188" X 1-114")


a B -% ='-a
/ '%
/ e-5- B
a 143 mrn (6-616") 143 mrn (6-616")
~QO rnm 1QO rnm
I RH SEATING PO9lVlON (LH SIMILAR) I
Fig. 12 - Top Strap Anchor Installed
FRONT SEATS Do not attempt to change the designed
seat position
by altering the designed seat
There are four bucket type seat options used: adjuster-to-floor pan anchor provisions or
AR9 and AF9 (Chevrolet) and AR9, AQ9 and AS5 seat adjuster-to-seat frame anchor provisions
(Pontiac) All styles have an inertia type front seatback as it could affect the performance of the seat
lock system. This system allows the seatback to move system.
freelv without reauiring the occupant to release a lock
leve; for access to the rear seat a;ea. During a sudden
stop, deceleration, or if the front of the car is declined
20 degrees or more, the seatback inertia locking system
locks the front seatbacks in an upright position. A
manual
seatback lock release lever is provided to allow
manual release of the inertia lock when the front of the
car is declined
20 degrees or more. The release lever is
located at the lower rear center of the seatback.
Front and rear seat cushions and backs have
formed foam pads, which
fit the contours of the full
panel
seatback frame assembly and also the designed
contour of the seat cushion frame.
There are no front seat dealer forward or
rearward relocation provisions provided at either seat
adjuster-to-floor pan attachments or seat
adjuster-to-seat frame attachments.
FRONT SEATBACM HEAD RESTRAINT
Front seatback head restraints with a single post
(Fig. 13) can be adjusted to various positions. All other
style seats incorporate the head restraint as part of the
one-piece back design. To remove single post head
restraints, use head restraint lock releasing tool
BT-7933 or fabricate from 0.4 mm
(1/64") flexible
steel strap (Fig. 14). The flat surface of this tool will
release the spring lock tab.
Removal and Installation
1. Raise head restraint to full-up position.
2. Insert lock release tool down front surface of head
restraint post until it stops. Push head restraint
and tool fully downward at the same time; then
lift restraint out of seatback.

9H-6 SEATS - F STYLE
3. To install head restraint, insert post into guide
and push downward to full-down position. Check
that lock spring engages and prevents head
restraint from being removed.
HEAD RESTRAINT ESCUTCHEON
ATTACHING [AND LOCK ASSEMBLY
SCREW ,

HEAD RESTRAINT
GUIDE ASSEMBLY

Fig. 13 - Head Restraint Assembly
MAKE FROM STRAP STEEL 0.4mm 1.01561
Fig. 14 - Head Restraint Antiremoval Lock Releasing
Tool
RECLINING SEATBACK
All styles have bucket seats with a tubular frame
design
seatback (Fig. 15) and a recliner control
mechanism. The tubular frame
seatback has a single
side, recliner control mechanism. This recliner
mechanism, which is mounted on the outboard side of
the seat, is the sole control of the
seatback angle. The
inner hinge arm attaching bolt acts only as a point of
rotation for the seatback. The inertia lock is an integral
part of the recliner control mechanism (Fig.
16).
To recline the seatback, rearward pressure must
be applied to the
seatback before lifting the recliner
release handle. When pressure is applied against the
seatback, the lockout lever tab disengages from the cam
plate tab. Then the release handle can be moved,
allowing the
seatback to move rearward. Releasing the
handle will allow the cam plate to move
counterclockwise and cause the sector lock teeth to
engage the upper hinge arm, locking the
seatback in the
desired reclined position. To return the
seatback to an
upright position, raise the recliner release handle.
Fig. 15 - Seat Assembly Tubular Frame Construction
1. RECLINER MECHANISM UPPER
ATTACHING BOLTS
2. INERTIA LOCK RELEASE LEVER
3. RECLINER MECHANISM LOWER
ATTACHING BOLTS
4. RECLINER RELEASE LEVER
G93935-96-BG
Fig. 16 - Recliner Mechanism with Inertia Lock

SEATS - F STYLE 9H-7
~
RECLINER CONTROL MECHANISM
Removal and Installation (Fig. 17)
1. Place reclining seatback in full-up position.
2. Remove
upper recliner mechanism cover.
3. Remove lower recliner mechanism cover.
4. Remove two upper and two lower recliner
mechanism attaching bolts and remove recliner
control mechanism.
5. To install, reverse removal procedure.
FRONT SEATBACK
Removal and Installation (Fig. 17)
1. Place seatback in
full-up position.
2. Move seat to full-forward position.
3. Remove upper recliner mechanism cover.
4. Remove both recliner mechanism upper
attaching bolts.
5. Remove seatback inner hinge arm escutcheon
and attaching bolt and remove seatback.
6. To
install, reverse removal procedure.
1, INNER HINGE ARM ATTACHING BOLT
2. RECLINER MECHANISM UPPER ATTACHING
3. UPPER RECLINER MECHANISM COVER
4. LOWER RECLINER MECHANISM
G92857-9A-A
Fig. 17 - Recliner Mechanism Upper and Lower
Escutcheon
FRONT SEATBACK INERTIA LOCK CHECK
The inertia lock is an integral part of the seatback
recliner mechanism. If the inertia lock needs to be
replaced, the entire recliner mechanism must be
replaced. Operation of the front
seatback inertia lock
may be checked as follows.
When checking lock in either the in-car check or
out-of-car check, pull upward on the release lever; then
release the lever. Lever must return with no evidence of
binding or interference. Where required, replace
inertia lock assembly and repeat check after
installation.
In-Car Check
1. In an area clear of other cars or obstructions, with
driver buckled in restraint system and with aid of
an assistant in rear seat also buckled in restraint
system holding sides of passenger
seatback (near
top of seatback) with arms stiff and body relaxed,
drive car forward between
10 and 15 mph (16 to
24
km/h); then quickly apply brakes to stop car
as fast as possible without skidding wheels.
Seatback inertia lock should lock; top of seatback
should not move forward more than 38 mm
(1-1/2"). When performing this operation on
driver's seatback, driver should lean slightly
forward.
2. If either driver or passenger
seatback lock does
not lock on first locking position, perform the
following out-of-car check.
Out-of-Car Check
1.
Remove seat assembly from car and place right
side up on a clean surface.
2. Raise rear of seat until seatback is 6 degrees
forward of vertical position and place blocks
under rear of seat to hold seat in this position. Use
"angle meter" as shown in Figure
18. Angle
meters can be purchased at hardware or
department stores.
3. Check that seatbaclc lock locks seatback in
locking position. If lock does not
lock, remove
lock and install new lock assembly.
4. If installing a new lock, check that lock
mechanism moves freely prior to installation.
After installation, check lock as described in steps
1 through 3.
FRONT SEAT MANUAL RECLINER CHECK
1.
Operate recliner mechanism lever and apply force
in aft direction to adjust the
seatback into the
fully reclined position, checking ease of lever
operation and
seatback movement. Release
recliner lever, checking ease of lever operation
and that
seatback remains fully reclined.
2. Operate recliner lever and manually position
seatback forward to an intermediate reclined
position. Release recliner lever.
3. Apply manual force to the upper seatback in the
rearward direction to check for positive recliner
locking action.
4. Operate recliner mechanism lever to adjust the
seatback to normal position, checking ease of
lever operation and
seatback full return. Release
recliner lever.
5. Apply manual force to the upper seatback in the
rearward direction to check for positive recliner
locking action. Recliner release lever should
return to normal position without any assistance
from operator.

9H-8 SEATS. F STYLE Bolt or Nut Location and Torque
6O FORWARD Many service replacement assemblies such as
OF VERTICAL front seat cushion and back frame assemblies and rear
compartment pan assembly may have unthreaded nuts
for attachment of seat adjusters,
seatback and lap belts.
Threads must be formed in these unthreaded nuts with
either the original or a new proper size thread forming
ANGLE METER bolt. Apply 67 to 89 newtons (15 to 20 pounds) of
straight-in pressure to start thread forming action of
bolt into an unthreaded nut.
NOTIICE: See NOTICE on page 9H-1 of this
section.
1. Seat adjuster-to-floor pan or adjuster-to-seat
frame bolts or nuts
- 20 to 28 N-m (15 to 21 ft-lb).
2. Front seatback outer control assembly to
seatback frame - 15 to 20 N-m (1 1 to 15 ft-lb).
3. Front
seatback frame to recliner mechanism - 20
to 28
N-m (15 to 21 ft-lb). I 4. Front seatback inner pivot hinge arm to seai
cushion frame - 20 to 28 N.m (15 to 21 ft-lb).
5. Rear folding
seatback panel pivot support to
outer bottom of
seatback - 46 N-m (34 ft-lb).
6. Rear folding
seatback lock bolt - 12 to 16 N.m
(9 to 12 ft-lb).
7. Rear folding
seatback lock striker to wheelhouse
- 46 N.m (34 ft-lb).
Fig. 18 - Front Seatback Inertia Lock Check - Out of Car 8. Seat
motor and transmission support attaching
bolts or nuts
- 9 to 15 N.m (7 to 11 ft-lb).
SEAT TORQUE SPECIFICATIONS 9. Passenger and driver retractor seat belt bolt to
quarter inner panel
- 35 to 48 N-m (26 to 35
ft-lb).
10. Passenger and driver seat buckle side belt to body
The following torque specifications should be
- 35 to 48 N.m (26 to 35 ft-lb).
used when servicing seat assemblies:
11. Passenger and driver inner seat belt to floor pan
- 35 to 48 N.m (26 to 35 ft-lb).
12. Shoulder belt anchor bolt to rocker panel
- 35 to
48
Nam (26 to 35 ft-lb).
13. Rear inner seat belt anchor bolt to floor pan
- 3'
to 48
Nqm (26 to 35 ft-lb).
14. Rear seat retractor assembly anchor bolt to floor
pan
- 35 to 48 N-m (26 to 35 ft-lb).
MANUAL SEAT ADJUSTER - DIAGNOSIS CHART
CONDITION APPARENTCAUSE CORRECTION
1. Adjuster will not 1. Locking wire
too
1. Loosen locking wire ten-
lock. tight. sion enough to provide full
engagement of lock bar in
locking slots of adjuster
lower channel.
2. Adjuster lock bar 2. Connect spring or
in-
spring disconnected stall new spring (Fig.
or broken. 23).
3. Adjuster lock bar 3. Lubricate lock bar
sticking or binding.
pivot. If bar is binding,
eliminate cause of binding
or replace adjuster.

SEATS - F STYLE 9H-9
2. Adjuster will not
unlock. 1. Locking wire too
loose or discon-
nected.
2. Adjuster lock bar
sticking or binding.
1. Tighten locking wire
enough to allow lock bar to
disengage from locking
slots in adjuster lower
channel when lock control
lever is activated.
2. Lubricate lock bar
pivot. If bar is binding,
eliminate cause of binding
or replace adjuster.
3. When left adjuster 1. Right adjuster either 1. Loosen adjuster-to-floor
locks, right adjuster rearward or forward of pan bolts or nuts. Move
is between lock posi- left adjuster. one adjuster forward or
tions. rearward
as far as possible
and the other adjuster the
opposite direction.
- --
Seat hard to moye
lorward or rearward.
1. Adjusters new, not
broken in.
2. Adjuster(s) improperly
lubricated.
3. Adjuster(s) binding
due to bent or damaged
channels.
4. Adjusters not in par-
allel alignment with each
other.
1. Operate seat to full
forward and full rearward
positions several times to
work new tightness out of
channels.
2. Lubricate adjuster chan-
nels with Lubriplate
Auto-
Lube A or equivalent.
3. Replace adjuster.
4. Loosen floor pan attach-
ing bolts or nuts, align
adjusters parallel on floor
pan and retighten nuts.
POWER SIX-WAY SEAMADJUSTER MECHANICAL DIAGNOSIS CHART
If it is apparent or suspected that the trouble is in the electrical system, refer to chassis manual Section 8A.
CONDITION APPARENT CAUSE CORRECTION
1. Horizontal operation 1. Improper lubrication 1. Lubricate adjuster upper
of seat not smooth of
adjuster shoes and
channel and plastic shoes.
(jerky)
- apparent hard channels.
operation.
2. Adjuster horizontal 2. See Horizontal
actuator gear too tight
Actuator Adjustment.
to rack gear.
3. Adjuster shoes too 3. Install new shoes on
tight in upper channel.
adjuster lower channel.
2. Horizontal chuck 1. Horizontal actuator 1. See Horizontal Actuator
or looseness. improperly adjusted to Adjustment.
rack gear.
3. One adjuster will 1. Horizontal drive cable 1. Check horizontal drive
not operate horizon- disconnected or damaged. cables, replace if damaged.
tally.
2. Horizontal actuator 2. Replace horizontal
inoperative. actuator assembly.