check engine PONTIAC FIERO 1988 Service Repair Manual

2H-6 STATIONARY GLASS - F STYLE
all traces of factory installed adhesive must be
removed prior to reinstallation.
5. Wipe sanded mirror support with clean paper
towel saturated with alcohol and allow to dry.
6. Follow directions on manufacturer's kit to
prepare
rearview mirror support prior to
installation on glass.
7. Properly position support to its premarked
location, with rounded end pointed upward; press
support against glass for 30 to 60 seconds,
exerting steady pressure against glass. After five
minutes, any excess adhesive may be removed
with an alcohol moistened paper towel or glass
cleaning solution.
8. Reinstall mirror
4. LOCATING CIRCLE AND BASE OF SUPPORT
LINE ON OUTSIDE GLASS SURFACE
2. CIRCLE ON OUTSIDE GLASS SURFACE
INDICATES AREA TO BE CLEANED
G94301-11 B.BG
Fig. 8-Locating Bonded earv view Mirror Support on
Glass
REAR WlMBOW DEFOGGER
The optional rear window defogger system
consists of a tinted glass that has a number of
horizontal ceramic silver compound element lines and
two vertical bus bars baked into the inside surface
during the glass forming operation. The feed wire or
terminal is soldered to the bus bar on the side. The
ground wire or terminal is soldered to the bus bar on
the right side.
The system operates on 12 volts. Under some
conditions, heat from the glass may not be detected by
finger touch. The length of time required to remove
interior fog from the back glass will vary with such
conditions as vehicle speed, outside glass temperature
and atmospheric pressure and number of passengers. This
system uses an instrument panel mounted
switch with an integral indicator lamp; and will operate
for five to ten minutes and automatically turn off
through the use of an automatic timer. The system can
be turned off during this operating period by turning
either the instrument panel mounted switch or ignition
switch to off.
Testing Grid Lines
To locate inoperative grid lines, start engine and
turn on the rear window defogger system. Ground one
test lamp lead and lightly touch the other prod to each
grid line. Figure
9 illustrates the pattern of test lamp
brilliance to be expected with a properly functioning
grid.
If test lamp bulb shows full brilliance at both ends
of grid lines, check for loose ground wire contact to
body metal.
Fig. 9-Test Lamp Bulb Brilliance Zones - Normal
Operating Rear Window Defogger
The range of zones in Figure 9 may vary slightly
from one glass to another; however, the bulb brilliance
will decrease proportionately to the increased
resistance in the grid line as the prod is moved from the
left bus bar to the right.
All grid lines must be tested in at least two places
to eliminate the possibility of bridging a break. For best
results, contact each grid line a few millimeters (inches)
either side of the glass centerline. If an abnormal light
reading is apparent on a specific grid line, place test
lamp prod on that grid at the left bus bar and move
prod toward the right bus bar until light goes out. This
will indicate a break in the continuity of the grid line
(Fig.
10).
Grid Line Repair
Tools Required:
o Part No. 1052858 (or equivalent) - Rear Window
Defogger Repair Kit
e Heat gun - capable of 260°C (500°F)
Remove or Disconnect
Battery 'feed - rear window defogger system

UNDERBODY-F STYLE 3H-1
SECTION 3H
UNDERBODY
CONTENTS
General Body Construction .......................................................................................................... 3H- 1
Alignment Checking ................................................................................................................ 3H- I
Floor Pan Insulators ...................... .. ........................................................................................ 3H- 1
Floor Carpets ................................................................................................................................. 3H-2
metric-to-English dimensional conversion data.
Dimensions to gage holes are measured to dead center
GENERAL BODY CONSTRUCTION of the holes and flush to adjacent surface metal unless
Information in this section pertains to unitized otherwise specified.
body construction which
incorporates integral front
and rear frame side rails. FLOOR PAN INSULATORS
Consideration must be given when checking
underbody dimensions. The engine front suspension
lower control arms are supported by a cross member.
The cross member, in turn, is bolted to the body at six
locations
-- three on each side of the engine front
compartment lower rails. Mounting provisions for the
front suspension system are shared by chassis
components (suspension lower control arms and cross
member) and body components (engine compartment
side panels). The suspension strut towers must be
dimensionally correct in relation to the remainder of
the underbody in order to maintain specified
suspension strut and
castedcamber angles.
Since the individual underbody components also
contribute directly to the overall strength of the body,
it is essential that proper welding techniques be
observed during service repair operations. The
underbody components should be properly sealed and
rustproofed whenever body repair operations destroy
or damage the original sealing and rustproofing. When
rustproofing critical underbody components, it is
essential that a good quality type of air dry primer be
used (such as corrosion resistant chromate or
equivalent material). It is not advisable to use
combination type primer-surfacers.
ALIGNMENT CHECKING
An accurate method of determining the
alignment of the underbody utilizes a measuring tram
gage. The tram gage set required to perform the
recommended measuring checks must include a
vertical pointer capable of reaching 914 mm (36").
Two types of measurements can be made with
a
tram gage: direct point-to-point measurements and
measurements calculated on a horizontal
vlane (datum
line) parallel to the underbody. In the
latter case, the
vertical pointers must be set as specified for each point
to be measured (Fig. 3-1).
Point-to-point measurements are generally taken
only on engine compartment components (Fig. 3-2)
and simply require the vertical pointers to be equally
set.
Figure #3-3 describes the alphabetically
identified points of measurement. Figure 3-4 provides Floor
pan insulators have been designed for the
higher floor pan temperatures that result from the use
of the catalytic converter in the exhaust system.
Therefore, when servicing a vehicle in the field, it is
essential that any insulators that may have been
disturbed or removed be reinstalled in the original
sequence and location. Also, if it becomes necessary to
replace an insulator, the material specified for that
particular location on the floor pan must be used. The
types of materials are listed below. Items 1 and
2 are
rolled stock and are ordered by linear foot and cut to
fit.
1. Insulator floor pan
(cerra blanket thermal) -
consists of 10 mm (3/8") thick aluminum silica
(type 1).
2. Insulator floor pan (amberlite) - consists of 10
mm
(3/8") thick resinated fibers (type 2).
3. Insulator floor pan sheet (phenolic bonded fiber
glass)
305 mm x 457 mm (12" x 18") cut to size,
(type 3).
All of the above materials must meet
Motor Vehicle Safety Standard No. 302 for
flammability.
When servicing or replacing interior insulators,
the following instructions must be observed:
1. Insulators must be installed in the original
position and sequence. Pieces should be butted
together in order to avoid gapping or
overlapping.
2. If it is necessary to replace an insulator, the
specified material must be used.
3. Use original
part to determine the amount of
replacement material required and as a template
for cutting and fitting the new piece to the floor
pan.
4. When installing insulator, do not enlarge cutouts
or holes that are used for the attachment of
interior components such as seats or seat belts.
5. Cross body harnesses for interior components
such as power seats, lap belt warning light and
buzzer or rear speakers must be routed over the
floor pan insulators in the original location and
clipped in place.

REAR END - F STYLE 7H-1
SECTION 7H
REAR END
NOTICE: The anti-theft label found on some major sheet metal, engines, and transmissions must be masked
prior to painting, rustproofing, undercoating, etc. The mask
must be removed following the above operations.
Failure to keep the label clean and readable may result in liability for violation of Federal Vehicle Theft Prevention
Standard, and subject the vehicle owner to possible suspicion that the part was stolen.
CONTENTS
Moldings, Emblems and Name Plates ............ 7H- 1
Compartment Lift Window
.......................... ... 7H-2
Adjustments ........................... .. ................ 7H-2
Removal and Installation ............................. 7H-3
Removal of Lift Window Panel from
Glass
....................................................... 7H-3
Glass Replacement and Adjustment ........... 7H-5
Gas Support Assembly ............................. 7H-7
Lock Cylinder ....................... .. .............. 7H-8
REAR COMPARTMENT
The service operations for the removal,
installation, adjustment and sealing of the
compartment lift window assembly, individual
hardware components, moldings, emblems and name
plates attached to the compartment lift window or rear
end panel are contained in this section.
MOLDINGS, EMBLEMS AND NAME PLAES
The moldings, emblems and name plates used on
the rear compartment and rear end panels are adhesive
attached. Figure 1 illustrates the different types of
attachment.
Fig. 1 - Molding, Name Plate and Emblem Retention
General Precautions
When removing or installing any body exterior
molding, emblem or name plate, care should be
exercised.
1. Adjacent
finishes should be covered to prevent
damage to finish.
...................................... Pull Down Unit 7H-8
.......................................... Release Solenoid 7H-9
......... ..................................... Lock Striker ... 7H-9
................... ....................... Weatherstrip .. 7H- 1 1
.................................................. Trim Panel 7H- 1 1
..................... Lift Window Wiper System 7H- l l
......... Rear Compartment Trim and Electrical 7H- 1 1
............... Compartment Lift Window Spoilers 7H- 13
.......................................... Exterior Lamps 7H- 15
ADHESIVE-BACKED MOLDINGS, EMBLEMS
AND NAME PLATES
Adhesive-backed emblems and name plates can
be removed from the body with the use of a hot air gun.
Removal
1.
Hold hot air gun 300 mm (12") from the surface
of the part to be removed.
2. Apply heat using a circular motion for about 30
seconds; then using care, peel part from body
surface.
Installation
To install, body surface must be warm (21°C or
70"F), clean and wax free.
1. Check for proper alignment with adjacent
moldings, emblems and/or name plates if
applicable.
2. Remove backing from part to be installed and
press firmly in place.
3. If reinstalling previously removed part or
partially loosened emblem, apply a thin, even film
of Loctite 414 Adhesive or equivalent to adhesive
portion of emblem, align and press firmly in
place.
a. If a separation occurs between the
adhesive-backed tape and name plate or
emblem (tape remains on body panel), do
not remove tape from body. Wipe back of
name plate or emblem and adhesive tape
with oil-free naphtha.
b. Apply a thin even film of Loctite 414
Adhesive or equivalent to the adhesive
portion of the emblem or name plate.
c. Immediately align name plate or emblem
and press firmly in place. Hold in place with
tape strips.
2. Proper tools and care should be used to guard d. Allow to set 15 minutes. If cleanup of
against molding damage. cement squeeze-out is required, use a cloth

8- CHASSIS INDEX
Recommended Fluids and Lubricants ................ OB-6
Relay Rod
......................................................... 3B6-2
Remote Mirror Control
...... See Body Service Section
5H.1. 15
Repair Procedures
.......................................... 88-50
S
........................................ Scheduled Maintenance OB- 1
Seats (Power) ....................................... Lumbar Support 8A- 145-0
............................. Sequential Fuel Injection 6E3-C2- 1
Service Engine Soon Light
.................................... 8C-3
Sheet Metal and Grille
................................ Section 2C
......................................... General Description .2 C. 1
........................................... Service Procedures .2 C. 1
................................................................. Hood .2 C. 1
...................................................... Hood Hinge 2C-2
Hood Latch and Cable
...................................... 2C-2
Paint
.............................................. Color Matching 2C-5
................................................ Identification -32-6
Interior Plastic Parts ...................................... 2C-6
................................................ Shock Absorbers 3D-
1
Shoe and Lining Assembly
. Brake
............................................ 3000/3 100 Series 5B1-3
3548 Series ...................................................... 5B6-4
Side Marker Lights
.............................................. 8B-2
........ Speakers See 8A- 150-0 & Body
Manual Section
6H- 1
.................... Spark Plug Gap .. .................. 6E3-13-3
................................ Speaker and Speaker Grille 9A-9
Special Tools
............................................ Air Conditioning 1 B-3 5
Air Conditioning Compressor
................................................. Overhaul 1D1-21
........................ Automatic Transaxle AT-700-R4-64
................................................................ Brakes SF-1
Clutch ................................................................ 7C-8
................................................................ Rear 4B1-20
....................................... Rear (Borg Warner) 4B-20
........................... Driveability and Emissions .6 E. 17
................................................ Engine Cooling 6B- 14
Power Steering Pump
& Gear ...................... 3B7-17
............................................... Propeller Shaft .4 A. 12
Steering Wheels and Columns
.......................... 5-35
Specifications Automatic Transmission Unit
............................................ Repair AT-700-R4-59
..................................................... Battery 6D 1-7
................................................................ Brakes 5F-1
Bumpers
......................................................... 2B-5
Charging System
................ .. ................... 6D3-3
.............................................................. Clutch .7 (2.8
....................................... Cranking System 6D2- 1 1
Driveability and Emissions ............................ 6E-23
................................................ Engine (V-6) ..6A 2.26
Engine (V-8) .................................................. 683-28
........................................ Front Suspension 3C- 10
Power Steering Gear and Pump
.................. 3B7-18 ............................................. Propeller Shaft .4 A. 12 ........................................................ Rear Axle 4B-19 ............................ Rear Axle (Borg Warner) 4B 1- 19
Rear Suspension
.............................................. 3D-9
.......................................... Replacement Bulbs 8Br 10 .............................................. Steering Linkage 3B6-6
Steering Wheels and Columns
...................... 3B5-35
........................................ Wheel Alignments 3A-4
....................................................... Speedometer 8C-2
........................................ Speedometer (Removal) 8C-5
...................................................... Speed Sensors 8C-1
Starter ........................................ Section 6D2. 8A-30-0
............................................. Starter (Circuit) 8A-30-0
Steering Linkage ...................................... Section 3B6
....................................... General Description 3B6-1
........................ Maintenance and Adjustments 3B6-1
................................................ On-Car Service 3B6-2
..................................................... Idler Arm 3B6-4
................................................ Pitman Arm 3B6-5
.................................................... Relay Rod 3B6-3
Tie Rods
...................................................... 3B6-2
.................................................. Specifications 3B6-6
Steering, Suspension, Tires and
Wheels Diagnosis
............................................................. 3-1
Steering Wheels and Columns
............................ 3B5-1
..................................... General Information 3B5- 1
Maintenance and Adjustments
...................... 3B5-'
On-Car Service .............................. .. ........... 3B5
Checking for Accident Damage
.................. 3B5-5
Intermediate Shaft ............... .. .................... 3B5-3
Park Lock Cable .......................................... 3B5-4
Standard Column
............................. Automatic Transaxle 3B5-13
Manual Transaxle ................................. 3B5- 19
Tilt Column
.............................. Automatic Transaxle 3B5-27
.................................. Manual Transaxle 3B5-19
Unit Repair Intermediate Shaft
...................................................... Assembly 3B5-6
................................................. Special Tools 3B5-35
Torque Specifications
.................................... 3B5-35
............................................. Starting System 8A-30-0
........................................ Strut Assembly (Front) 3C-4
.................................... ..... Symbols Chart ... 8A-3-0
T
.......................................................... Tachometer 9G-1
Tail/Stop/Turn Signal/Lights .......................... 8B-2
Temperature Cable
.............................................. 112 A-
Temperature Warning Light ................................ 8C-3
Theft Deterrent (Circuit)
.............................. 8A-133-0
Tie Rods
.............................................................. 3B6-2
Tires and Wheels
........................................ Section 3E
Diagnosis
.................................................. Section 3
General Information
......................................... 3E-1
................................................... Metric Tires 3E-2
....................................... Replacement Tires .31 E-
.................................................... Tire Placard 3E-2
........................................................... Wheels 3E-2
Maintenance and Adjustments
.......................... 3E-2
.......................... Aluminum Wheel Cleaning 3E-9
............................. ......... Inflation of Tires .. 3E-3
........................................ Tire Chain Usage 3E-4
.................................................. Tire Rotation 3E-3
.............................................. Wheel Repair 3E-2
...................................... Wheel Studs/Nuts 3E-3
........................................... Service Operations 3E-4
........................ Aluminum Wheel Cleaning 3E-9
.................................... Balance Precautions 3E-7
............................ Balancing Tire and Wheel 3E-7
.............................................. Compact Spare 3E-6
........................ Correcting Nonuniform Tires 3E-8