Subaru 2002 Impreza User manual

2002 Model Year
PDF Service Manual
GENERAL INFORMATION SECTION (Pub.No.G1840GE1)
ENGINE 1 SECTION (Pub.No.G1840GE2)
ENGINE 2 SECTION (Pub.No.G1840GE3)
TRANSMISSION SECTION (Pub.No.G1840GE4)
CHASSIS SECTION (Pub.No.G1840GE5)
BODY SECTION (Pub.No.G1840GE6)
WIRING SYSTEM SECTION (Pub.No.G1840GE7)

FUJI HEAVY INDUSTRIES LTD. G1840GE1
2002 IMPREZA SERVICE MANUAL QUICK REFERENCE INDEX
GENERAL INFORMATION
SECTION
This service manual has been prepared
to provide SUBARU service personnel
with the necessary information and data
for the correct maintenance and repair
of SUBARU vehicles.
This manual includes the procedures
for maintenance, disassembling, reas-
sembling, inspection and adjustment of
components and diagnostics for guid-
ance of experienced mechanics.
Please peruse and utilize this manual
fully to ensure complete repair work for
satisfying our customers by keeping
their vehicle in optimum condition.
When replacement of parts during
repair work is needed, be sure to use
SUBARU genuine parts.
All information, illustration and specifi-
cations contained in this manual are
based on the latest product information
available at the time of publication
approval.
FOREWORD FW
HOW TO USE THIS MANUALS HU
SPECIFICATIONS SPC
PRECAUTION PC
NOTE NT
IDENTIFICATION ID
RECOMMENDED MATERIALS RM
PRE-DELIVERY INSPECTION PI
PERIODIC MAINTENANCE SERVICES PM

FOREWORD
FW
Page
1. Foreword .....................................................................................................2

FW-2
FOREWORD
FOREWORD
1. Foreword
A: FOREWORD
These manuals are used when performing mainte-
nance, repair, or diagnosis of the Subaru IMPRE-
ZA.
Applied model: GG***** and GD***** from 2002MY.
The additional manuals below are also available:
AUTOMATIC TRANSMISSION SERVICE MANU-
AL (Pub. No. G0864ZE)
The manuals contain the latest information at the
time of publication. Changes in specifications,
methods, etc. may be made without notice.

HOW TO USE THIS MANUALS
HU
Page
1. How to Use This Manuals ...........................................................................2

HU-2
HOW TO USE THIS MANUALS
HOW TO USE THIS MANUALS
1. How to Use This Manuals
A: HOW TO USE THIS MANUALS
1. STRUCTURE
Each section consists of SCT that are broken down
into SC that are divided into sections for each com-
ponent. The specification, maintenance and other
information for the components are included, and
diagnosis information has also been added where
necessary.
2. INDEX
The first page has an index with tabs. And at the
end of each section is an alphabetical index.
3. COMPONENTS
For each component, a composition drawing is in-
cluded.
4. SPECIFICATIONS
If necessary, specifications are also included.
5. INSPECTION
Inspections are included to be carried out before
and after maintenance.
6. MAINTENANCE
Maintenance instructions are provided for each
component. When multiple components comprise
one process, refer to the instructions for that pro-
cess for each component.
7. DIAGNOSIS
Tables showing a step-by-step process make it
easy to conduct diagnosis.
8. SI UNITS
Measurements in these manuals are according to
the SI units. Metric and yard/pound measurements
are also included.

SPECIFICATIONS
SPC
Page
1. Impreza SA08731 .......................................................................................2

SPC-2
SPECIFICATIONS
IMPREZA
1. Impreza SA08731
A: DIMENSIONS SA08731G28
★1: 1.6 L
★2: 2.0 L
★3: 2.0 L Turbo
★4: With roof rail
★5: With sun roof
B: ENGINE SA08731G29
Model Sedan Wagon OUTBACK
Overall length mm (in) 4,405 (173.4)
Overall width mm (in) 1,730 (68.1) 1,695 (66.7) 1,710 (67.3)
Overall height (at C.W.) mm (in) 1,440 (56.7) 1,465 (57.7),
1,485 (58.5)★4
1,475 (58.1),
1,495 (58.9)★4
Compartment Length mm (in) 1,890 (74.4) 1,845 (72.6)
Width mm (in) 1,380 (54.3)
Height mm (in) 1,180 (46.5),
1,125 (44.3)★5
1,200 (47.2),
1,150 (45.3)★5
1,200 (47.2),
1,150 (45.3)★5
Wheelbase mm (in) 2,525 (99.4)
Tread Front mm (in) 1,485 (58.5) 1,460 (57.5)★1,
1,465 (57.7) 1,460 (57.5)
Rear mm (in) 1,475 (58.1),
1,480 (58.3)★3
1,450 (57.1)★1,
1,455 (57.3) 1,455 (57.3)
Minimum road
clearance
Without catalytic
converter
mm (in) 150 (5.9),
155 (6.1)★2
150 (5.9),
155 (6.1)★2160 (6.3)
With catalytic
converter
mm (in) 150 (5.9),
155 (6.1)★3
150 (5.9),
155 (6.1)★3160 (6.3)
Model 1.6 L Non-Turbo 2.0 L Turbo 2.0 L 2.5 L
Engine type Horizontally opposed, liquid cooled, 4-cylinder, 4-stroke gasoline engine
Valve arrangement Overhead camshaft type
Bore ×Stroke mm (in) 87.9 ×65.8
(3.461 ×2.591)
92 ×75
(3.62 ×2.95)
99.5 ×79
(3.92 ×3.11)
Displacement cm3(cu in) 1,597 (97.45) 1,994 (121.67) 2,475 (151.03)
Compression ratio 10.0 ±0.2 8.0 ±0.2 10.0 ±0.2
Firing order 1 — 3 — 2 — 4
Idle speed at Park/Neutral
position
rpm 700 ±100 750 ±100 700 ±100
Maximum output kW (HP)/rpm 70 (94)/5,200 92 (123)/5,600 160 (215)/5,600 112 (150)/5,600
Maximum torque N·m (kgf-m, ft-lb)/rpm 143 (14.6, 105.5)
/3,600
184 (18.8, 136.0)
/3,600
292 (29.8, 215.4)
/3,600
223 (22.7, 164.5)
/3,600