1988 PONTIAC FIERO Service Repair Manual

71.1-2 REAR END - F STYLE
dampened slightly with oil-free naphtha;
then remove tape strips.
COMPARTMENT LIFT WINDOW MOLDING
Refinishing
1. Mask off area(s) adjacent to molding(s).
2. Clean with Ditzler's DX-440 wax and grease
removing solvent or equivalent.
3. Sand with
#400 grit wet or dry sandpaper.
4. Clean
with wax and grease removing solvent.
5. Prime with Ditzler's
epoxy chromate primer DP
40/40 1 or equivalent.
6. Sand with
#500 grit wet or dry sandpaper.
7. Clean with wax and grease removing solvent.
8. Top
coat with flat black acrylic lacquer.
9. Remove masking tape.
When using any of the listed materials, follow the
manufacturer's label directions for application
procedures and drying time.
Removal
CAUTION: When working with glass
assemblies, the use of personal
protection items such as safety
glasses and work gloves is
recommended to minimize the chance
of personal injury should the glass
break.
1. Remove compartment lift window from body, as
described later in this section, and with the aid of
a helper, place upside down on a protected work
surface.
2. Remove upper hinges.
3. Remove screws retaining moldings to panel.
CAUTION: Perform the urethane
burn-out operation in a well ventilated
area and avoid direct inhalation of the
fumes being emitted as these fumes
may be hazardous.
4. Using an acetylene torch with a number 2 tip,
start at the top of either the right or left side
molding and apply heat for a distance of 200 mm
(8") to outboard edge of molding for 30 to 60
seconds using a back and forth motion (Fig. 2).
5. Immediately grasp heated section of molding
with pliers and pull molding away from glass.
6. Repeat steps
4 and 5 for the entire length of
molding.
7. Repeat steps 4 through 6 for opposite side
molding.
Installation
1. Clean adhesive from glass using a razor blade and
cloth dampened with alcohol or oil-free naphtha.
2. Seal original holes in panel where molding
retaining screws were removed in step 3 of
removal procedure.
3. Apply clear primer in urethane kit (9636067 or
equivalent) to glass as shown in Figure 7.
a. Apply
black primer over same areas. Allow
to air dry for five minutes.
Fig. 2 -Applying Heat to Edge of Molding
b. Apply
black primer to inside of molding
channels. Allow to air dry for five minutes.
c. Apply a 4.5 mm
(3/16") bead of urethane
from kit into channel of new molding. Do
not apply urethane for a distance of
25 mm
(1") from forward edge of right and
left-hand moldings (Fig. 8).
d. Place escutcheon inside of right and
left-hand molding.
e. Using a
clean rubber mallet, drive moldings
onto glass starting at upper corners. Be sure
to align holes in tabs of moldings with holes
in glass.
f. Apply cloth tape every 200 mm (8") over
moldings and glass sides to keep molding in
place while urethane cures. Allow six hours
of cure time.
4. Install moldings to panel using screws removed
in step 3 of removal procedure. It may be
necessary to drill new holes for screw installation.
CAUTION: Do not tighten nuts beyond
specified torque or glass breakage and
personal injury could result.
5. Install
upper hinges to glass. Torque nuts to 16
N-m (1 1 ft-lb).
6. With aid of helper, install compartment lift
window to body and make sure of proper
alignment of lift window to body. Torque nuts to
20 to 28
N-m (15 to 20 ft-lb).
COMPARTMENT LIFT WINDOW
The compartment lift window glass assembly
consists of a solid formed tempered safety glass with
two piece urethane attached black painted moldings. A
finishing panel is bolted to the bottom of the glass.
Mounted on each side of the lift glass assembly and
attached to the body are tubular gas supports which
assist in opening. Gas supports vary in output levels
depending on options such as a rear window wiper,
spoiler or both.
Adjustments
CAUTION: Glass side of hinge
assembly has slots. These slots are for
production build use and not intended
for service adjustment of
glass.
Follow recommended adjustment

procedure or glass breakage and
personal injury could occur.
The compartment lift window assembly height,
fore and aft and side adjustments are controlled at the
hinge-to-body location. This area of the body has
oversize hinge attaching holes (Fig. 3) in addition to
the hinge-to-body spacers. Adjustments at the hinge
location must be made with gas supports disengaged.
Additional height adjustment can also be made at the
lower panel by adjusting the rubber bumpers. Bolts
holding hinge to body should be tightened 20 to 28
N-m (15 to 20 ft-lb).
, ,' VIEW A
2
1. BOLT- GAS SUPPORT TO REAR
COMPARTMENT
LIFT WINDOW
2. BOLT- GAS SUPPORT
TO BODY
3. SPACER
4. BUSHING
Fig. 4 - Attaching Gas Support
REAR END - F STYLE 7W-3
Removal and Installation
1. Prop lid open and place protective covering along
edges of rear compartment opening to prevent
damage to painted surfaces.
2. Use
a 13 mm socket to remove nuts holding glass
to hinge (Fig. 3).
CAUTION: Do not attempt to remove
or loosen gas support assembly
attachments with lid in any position
other than fully open as personal
injury may result.
3. While helper supports glass, disengage gas
supports from lift window assembly (view A, Fig.
4) and disconnect harness connector for electric
grid defogger (if present).
4. With
aid of helper, remove lift window assembly
from body and place on a protected surface.
CAUTION: When installing bolts
(glass to hinge), be sure to torque only
to
16 N-m (1 1 ft-lb). Overtightening
could cause glass to break and
possible personal injury. Always wear
safety glasses during this operation.
5. To install, reverse the removal procedure. Torque
bolt holding gas support to body 5 to
7 N-m (48
to 60 in-lb).
Removal of Compartment Lift Window Panel from Glass
CAUTION: When performing the
following operations, personal
protection
iterns such as safety
glasses and work gloves should be
worn to minimize possible personal
injury.
1. Place protective coverings around body opening.
2. Place two jackstands in body to support glass.
Place protective covering over jackstands.
3. Disconnect electrical connectors from gas
support (if present) and remove bolts retaining
gas support to lower reinforcement.
4. Lower glass.
5. Remove a. Wiper motor and blade assembly (if
present)
b. Gas supports
c. Lock striker
d. Nuts
holding lower reinforcement to panel,
starting with outboard nuts
(2, Fig. 5)
e. Screws
retaining lift window molding to
panel
6. Remove panel from glass.
a. Mask
off top forward edge of panel next to
glass.
b. Using
a flat-bladed sharp tool, cut out foam
and butyl sealing strips between panel and
glass (1 and 2, Fig. 6). Clean tool frequently
to ease cutting operation.
c. Using a sharp-bladed utility knife, cut
urethane between nylon patches and glass.
New patches will be required when
installing panel to glass.

7H-4 REAR END - F STYLE
d. Lift upward on panel and pull from glass,
being careful not to distort ends of glass
molding.
1. LOWER REINFORCEMENT
2. RETAINING NUTS
3. COMPARTMENT LIFT WINDOW
4. GLASS TO REINFORCEMENT SEALS
5. PANEL ASSEMBLY
Fig. 5-Panel to Compartment Glass Assembly
Installation and Adjustment
1. Cleaning
a. Using
a razor blade and cloth dampened
with alcohol, clean all adhesive from glass.
b. Clean all adhesive from panel as a bench
operation if original panel is to be
reinstalled.
c. Place a small piece of butyl on the bushing
side of all black spacers with integral
bushings.
2. Install
a. Front sealing strip (part number 20328200
or equivalent) to forward edge of panel (1,
Fig. 6).
b. Butyl adhesive strip
(5/16 square - 3M, part
number 0863 1 or equivalent) next to sealing
strip (2, Fig. 6).
3. Seal original holes in panel where glass molding
retaining screws were installed with butyl.
4. Prime area shown in Figure 9 with black primer
from urethane kit. Allow to air dry for five
minutes.
5. Install urethane (part number 9636067 or
equivalent) to area primed in above step and
smooth material using a flat-bladed tool or
tongue depressor.
6. With aid of helper, locate panel to glass in
rearmost position.
VIEW A
1. FRONT SEALING STRIP PANEL TO GLASS
2. SEALING STRIP LIFT WINDOW PANEL TO
GLASS
3. SPACERS
4. URETHANE ADHESIVE
G94041-7H-F
Fig. 6-Installing Sealing Strip to Lift Window Panel
7. Assemble panel to glass.
a. Place black spacers with bushing over studs
with bushing end of spacer going through
glass.
b. Locate lower reinforcement over studs (1,
Fig.
5).
c. Hand tighten all nuts retaining panel to
glass.
d. Locate nylon patches to glass being sure of
right and left-hand installation.
8. Lower lift window and align panel to glass and to
body.
9. From
inside of car, tighten nuts (but not to
specified torque).
10. Raise
lift window and place jackstands in location
to support lid.
CAUTION: When performing next
step,
overtightening could cause glass
to break and personal injury could
result. Personal safety items such as
work gloves and safety glasses should
be worn to minimize possible personal
injury.
11. Using
a torque wrench, tighten retaining nuts to
16
N.m (1 1 ft-lb) in the following order:
a. Forward center
b. Rearward center
c. All remaining nuts
12. Install
molding to panel. It may be necessary to
drill new holes for retaining screws.
13. Installing gas supports.

REAR END. F STYLE 9H-5
a. Install
bolts - gas support to body at right
and left-hand gas supports. Make sure
electrical connector is facing inboard.
Torque bolts 20 to 28
N.m (15 to 20 ft-lb),
Figure 4, view
B).
b. Connect
electrical connector to gas support
(if present).
c. Install
bolts at rear of gas supports to lower
reinforcement. Torque bolts 5 to 7
N-m (40
to
60 in-lb) and connect electrical connector
(if present), Figure 4, view A.
14. Lift lid
and remove jackstands from body.
15. Install
a. Striker to panel
b. Wiper
motor and blade assembly. Torque
nut retaining wiper motor to glass 5 to 7
N-m (40 to 60 in-lb).
16. Align lock
a. Carefully
close lid and check striker-to-lock
engagement.
b. If
striker does not engage lock correctly,
loosen rear end trim panel and loosen bolts
holding lock assembly to rear end panel. If
equipped with electric lock release solenoid,
loosen bolt holding solenoid to rear end
panel.
c. Adjust lock for proper engagement to
striker.
d. Tighten lock and solenoid retaining bolts 9
to 12
N.m (7 to 9 ft-lb).
e. Replace rear end trim panel.
17. Replace lift window trim panel,
Glass Replacement and Adjustment
CAUTION: When removing glass
assemblies from car, the use of
personal protection items such as
work gloves and safely glasses is
recommended to minimize possible
personal injury.
Removal
1. Place protective covering along edges of rear
compartment to prevent damage to painted
surfaces.
2. If glass
is broken, remove all broken glass from
interior of car.
3. From
inside of car, remove plastic covers from
bolts holding gas supports to body.
4. If equipped with heated
back glass, remove wire
connectors from gas supports.
a. Unlock compartment lift window.
b. Have helper support lid in partially open
position.
5. Remove
a. Bolts holding
gas supports to body
b. Back body opening upper
garnish molding
c. Nuts
retaining lift window hinge to body
(Fig. 3)
6. With aid of helper remove lift window from car
and place upside down on a protected surface.
Note position of hinge shims (if present). 7.
Remove
a. Gas supports from lower reinforcement
(view A, Fig. 4)
b. Hinge assemblies from glass
c. Trim panel
d. Wiper and blade assembly (if present)
e. Lock striker
f. Electrical contact and wiring harness (if
present)
g. Lower reinforcement (1, Fig. 5)
h. Screws holding glass finishing molding to
panel
i. Nylon patches at radius joint of panel (Cut
through adhesive using a curved blade
utility knife.)
8. With aid of helper, turn lift window over and
place masking tape along top edge of panel.
a. If glass is being replaced for any reason
other than breakage, use a flat-bladed sharp
tool to cut out foam and butyl sealing strips
between panel and glass. Clean tool
frequently to ease cutting operation.
b. Lift upward on panel and pull from glass,
being careful not to distort ends of glass
molding.
9. Clean panel of foam sealing strip and all
adhesives. This can be done by using a cloth
dampened in alcohol.
10. Remove lower glass sealing strips (4, Fig.
5).
11. Remove
and discard plastic spacers.
Installation
1. When a new glass is installed, new glass finishing
moldings will be required. Use the following steps
to install moldings to glass.
a. Use clear
primer in urethane kit (9636067
or equivalent). Apply primer to glass as
shown in Figure 7.
b. Apply a 4.5
mm
(3/16") bead of urethane
from kit into molding channel as shown in
Figure 8. Do not apply urethane for a
distance of 25 mm (1") from center end of
each molding.
c. Place molding escutcheon inside right and
left-hand moldings.
d. Use
a rubber mallet and install moldings
onto glass making sure to align holes in tabs
of molding with holes in glass. Be sure
corner area is fully seated.
CAUTION: When performing next
step, overtightening could cause glass
to break and possible personal injury.
The use of personal protection items
such as safety glasses and work
gloves is recommended to minimize
possible personal in jury.
2. Install hinge to glass and torque bolts 16 N m (1 1
ft-lb).
3. Install the following items:
a. Glass to reinforcement seals to rear edge of
glass (4, Fig. 5).

7H-6 REAR END - F STYLE
SECTION A-A SECTION B-B
G92850-7H-F
Fig. 7-Priming Compartment Lift Window Glass
1. MOLDING
2. URETHANE
c.
Butyl adhesive strip (5/16" square, 3M -
part number 08631 or equivalent) next to
sealing strip
(2, Fig. 6). Seal holes in panel
where glass molding screws were installed
using above butyl.
d. Apply black primer (from kit) to panel (Fig.
9). Allow to air dry for five minutes.
e. Apply urethane (part number 9636067 or
equivalent) to area of panel primed in above
step. Smooth urethane with a flat-bladed
tool. If new panel is to be installed, also
apply to forward outer drain holes (4, Fig.
6).
ASSEMBLY
VIEW A
Fig. 9-Priming of Lift Window Panel
4. Install panel to glass.
a. Place new glass spacers over forward studs
on panel (if original glass was broken),
Figure 6, item
3.
b.
Place glass on panel by placing holes in glass
over studs on panel. Align panel to glass in
rearmost position.
c. Place spacers between glass and lower
reinforcement.
d. Place lower reinforcement over studs on
panel
(1, Fig. 5).
e. Apply nylon patches to glass (being sure of
right and left-hand part installation).
f. Hand tighten all nuts retaining the
Fig. 8-Compartment Lift Window Finishing Molding reinforcement to panel.
g. With the aid of a helper, install
b. Front sealing strip, part number 20328200 compartment
lift window assembly to the
or equivalent, (1, Fig. 6). body.
The holes for the hinge body bolts are
oversized which allows for some

REAR END - F STYLE 761-7
adjustment. Install original hinge shims to
body (Fig. 10). Once the glass is aligned,
torque hinge-to-body nuts 20 to 28
N-m (15
to 20 ft-lb).
h. From inside the car, loosen the lower
reinforcement-to-panel nuts.
i. From outside the car, position rear panel
center and forward 3 mm
(1/8") of final
desired position.
j. From
inside the car, hand tighten the lower
reinforcement-to-panel nuts.
k. Raise and prop open compartment lift
window.
1. HlNQE ASSEMBLY
2. SPACERS
3. ATTACHHQ NUTS, (HINBE TO BODY)
Fig. 10-Installing Lift Window Hinge to Body
CAUTION: Torque of 16 N-m (I I ft-lb)
must be maintained when tightening
retaining nuts, panel to glass (Fig.
5,
item 2) or glass breakage and personal
injury could result. Personal
protection
items such as safety
glasses and
work gloves should be
worn to minimize possible personal
injury.
1. Tighten retaining nuts in the follo~
order:
ea Forward center
e Rear center
e All remaining nuts
m. Install screws securing glass finishing
molding to panel. It may be necessary to
drill two small holes in panel for molding
retaining screws.
5. While helper supports lift window, install gas
supports to body.
Be sure that electrical contact
at forward edge of gas support (if present) is
inboard, then
a. Torque gas support-to-body bolts 20 to 28
N.m (15 to 20 ft-lb).
b. Torque gas support-to-lift window bolts
5 to
7 N-m (40 to 60 in-lb).
c. Reinstall wiring harness and upper
electrical contact to lift window panel
(~f
present).
d. Install wiper motor to lift window (if
present); torque all bolts
5 to 7 N-m (3.5 to
5 ft-lb).
e. Install lock striker to lift window panel and
carefully check lock striker-to-lock
engagement.
f. If it is necessary to adjust lock for proper
engagement of striker, remove rear end trim
panel.
g. Loosen bolts
holding lock to rear end panel
(and solenoid if present).
h. Adjust lock for proper engagement of
striker.
i. Tighten all bolts to torque of 9 to 12 N-m
(7 to 9 ft-lb).
j. Install trim previously removed.
GAS SUPPORT ASSEMBLY
The gas support assemblies used to assist opening
are attached to the lid and the body and are secured by
retaining bolts. The supports are color coded (lettering
on each support) for each option group. The original
gas supports have a specified output level and MUST
be replaced with a gas support with the same color
coded lettering
Removal and Installation
CAUTION:
Do not attempt Po remove
or loosen gas support assembly
attachments with lid in any position
other than fully open as personal
injury may result.
1. Prop lid in full-open position.
2. Remove
electrical connector (if present). While
helper supports lid, disengage gas supports from
lift window assembly (view a and b, Fig. 4).
3. Remove bolt covers, retaining bolts and
disengage gas supports.
4. To install, reverse removal procedure.
When reinstalling gas supports, torque the
support-to-body bolts 20 to 28
N-m (15 to 21
ft-lb). The support-to-lift window bolts should be
torqued 5 to
7 N-m (40 to 60 in-lb).
Testing Procedure
If the compartment lift window will not stay in
the full-open position or does not raise, follow the listed
steps to check if the gas
support(s) is worn.
In extremely cold temperatures, below
-29"C,
-20"F, it is normal for the gas pressure to be reduced
and this results in a decrease in the hold-open force
until warmer weather.
A buildup of snow on the lift