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2004 Model Year
PDF Service Manual
GENERAL INFORMATION SECTION (Pub.No.G1870GE1)
ENGINE SECTION 1 (Pub.No.G1870GE2)
ENGINE SECTION 2 (Pub.No.G1870GE3)
TRANSMISSION SECTION (Pub.No.G1870GE4)
CHASSIS SECTION (Pub.No.G1870GE5)
BODY SECTION (Pub.No.G1870GE6)
WIRING SYSTEM SECTION (Pub.No.G1870GE7)
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2004 IMPREZA SERVICE MANUAL QUICK REFERENCE INDEX GENERAL INFORMATION SECTION FOREWORD FW HOW TO USE THIS MANUAL HU SPECIFICATIONS SPC PRECAUTION PC This service manual has been prepared to provide SUBARU service personnel NOTE NT with the necessary information and data for the correct maintenance and repair of SUBARU vehicles. IDENTIFICATION ID This manual includes the procedures for maintenance, disassembling, reas- sembling, inspection and adjustment of RECOMMENDED MATERIALS RM components an
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FOREWORD FW Page 1. Foreword .....................................................................................................2
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Foreword FOREWORD 1. Foreword A: FOREWORD These manuals are used when performing mainte- nance, repair, or diagnosis of the Subaru IMPRE- ZA. Applied model: GD*****, GG***** from 2004MY The manuals contain the latest information at the time of publication. Changes in specifications, methods, etc. may be made without notice. FW-2
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HOW TO USE THIS MANUAL HU Page 1. How to Use This Manual .............................................................................2
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How to Use This Manual HOW TO USE THIS MANUAL 1. How to Use This Manual A: HOW TO USE THIS MANUAL 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. 3. COMPONENTS Illustrations are listed for each component. The in- formation nec
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How to Use This Manual HOW TO USE THIS MANUAL Example: T2 (3) (6) T3 (7) (5) T3 (4) (2) (8) T8 (20) T1 (1) (21) T3 T2 (5) T6 T2 T10 (1) T3 T5 (2) (12) (23) (22) T3 (16) (6) (9) (14) T4 (18) (10) (3) (11) (11) T1 (4) (4) (13) (10) (15) (9) T2 (17) (19) T6 T4 (4) (10) (3) (4) (7) (15) T2 T5 T11 (22) T6 (3) (12) (35) (34) T4 T5 (8) (27) T3 T2 (10) (26) (23) (24) (25) (14) T2 T7 (24) (36) (25) (31) (13) (30) T2 T5 (10) (29) (37) (33) (17) (28) (32) (16) (18) T4 T3 T1 :Selective part T1 :Replacement
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How to Use This Manual HOW TO USE THIS MANUAL 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 for serviceable parts describes work area and detailed steps with illustration. It also describes the use of special tool, tightening torque, cautions for each procedure. If many serviceable parts are included in one service procedure, appropriate referen
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How to Use This Manual HOW TO USE THIS MANUAL 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. Example: Tightening torque: 44 N·m (4.5 kgf-m, 33 ft-lb) Item SI Units Conventional unit Remarks Force N (Newton) kgf 1 kgf = 9.80655 N Mass (Weight) kg, g kg, g 3 3 Capacity 2 or cc 2, m2 or cm 1 cc = 1 cm = 1 m2 Torque N·m kgf-m, kgf-cm
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How to Use This Manual HOW TO USE THIS MANUAL 9. EXPLANATION OF TERMINOLOGY List AAI : Air Assist Injection LH : LH (Left Hand) A/B : Airbag LSD : Limited Slip Differential ABS : Antilock Brake System M/B : Main Fuse & Relay Box A/C : Air conditioner MD : Mini Disc A/F : Air Fuel Ratio MPi : Multi Point injection ALT : Generator MP-T : Multi-Plate Transfer ASSY : Assembly MT : Manual transmission AT : Automatic transmission Non- : Natural Aspiration turbo ATF : Automatic transmission fluid AVC
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SPECIFICATIONS SPC Page 1. Impreza .......................................................................................................2
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Impreza SPECIFICATIONS 1. Impreza A: DIMENSIONS Model Sedan Wagon OUTBACK STi Overall length mm (in) 4,415 (173.8) Overall width mm (in) 1,740 (68.4) 1,695 (66.7) 1,710 (67.3) 1,740 (68.1) Overall height (at C.W.) mm (in) 1,465 (57.7), 1,475 (58.1), 1,440 (56.7) 1,440 (56.7) 4 4 1,485 (58.5) 1,495 (58.9) Compartment Length mm (in) 1,890 (74.4) 1,845 (72.6) 1,890 (74.4) Width mm (in) 1,380 (54.3) Height mm (in) 1,180 (46.5), 1,200 (47.2), 1,200 (47.2), 1,180 (46.5) 5 5 5 1,125 (44.3) 1,150
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Impreza SPECIFICATIONS B: ENGINE Model 1.6 L Non-turbo 2.0 L Turbo 2.0 L 2.5 L STi 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 92 × 75 99.5 × 79 92 × 75 (3.461 × 2.591) (3.62 × 2.95) (3.92 × 3.11) (3.62 × 2.95) 3 Displacement 1,597 (97.45) 1,994 (121.67) 2,457 (149.9) 1,994 (121.67) cm (cu in) Compression ratio 10.0±0.2 8.0±0.2 10.0±0.2 8.0±0.2 Firing order 1 — 3 — 2 — 4 2 2 Id
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Impreza SPECIFICATIONS D: TRANSMISSION Model 1.6 L Non-turbo 2.0 L Turbo 2.0 L 2.5 L STi Transmission type 5MT 4AT 5MT 4AT 5MT 4AT 5MT 4AT 6MT Clutch type DSPD TCC DSPD TCC DSPD TCC DSPD TCC DSPD Gear ratio 1st 3.454, 3.454 2.785 3.454 2.785 2.785 3.454 2.785 3.636 1 3.166 2nd 1.947, 2.062 1.545 2.062 1.545 1.545 2.062 1.545 2.375 1 1.882 3rd 1.366, 1.448 1.000 1.448 1.000 1.000 1.448 1.000 1.761 1 1.296 4th 1.088 0.694 1.088 0.694 0.972 0.694 1.088 0.694 1.346 5th 0.871, 0.971, 0.825 — 0
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Impreza SPECIFICATIONS G: BRAKE Model 1.6 L Non-turbo 2.0 L, 2.5 L Turbo 2.0 L, STi Service brake system Dual circuit hydraulic with vacuum suspended power unit Front Ventilated disc brake Rear Drum brake Disc brake Ventilated disc brake Parking brake Mechanical on rear brakes H: TIRE Model BASE, TS GX, TS RS, WRX OUTBACK WRX STi 1 1 1 1 Rim size 14 × 5 / JJ 15 × 6JJ 16 × 6 / JJ 16 × 6 / JJ 17 × 7JJ 17 × 7 / JJ 2 2 2 2 Tire size 185/70R14 88H 195/60R15 88H 205/50R16 87V P205/55R16 89V 215/45R17
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Impreza SPECIFICATIONS J: WEIGHT 1. LHD MODEL Sedan 1 E2 K0 Option code EC K4 KS Model 1.6 L FWD AWD Base TS 5MT 4AT 5MT Curb weight (C.W.) Front kgf (lb) 720 765 770 735 755 750 750 740 (1,587) (1,687) (1,698) (1,620) (1,664) (1,654) (1,654) (1,631) Rear kgf (lb) 470 470 470 520 520 520 520 535 (1,036) (1,036) (1,036) (1,146) (1,146) (1,146) (1,146) (1,179) Total kgf (lb) 1,190 1,235 1,240 1,255 1,275 1,270 1,270 1,275 (2,624) (2,723) (2,734) (2,756) (2,810) (2,800) (2,800) (2,810) Maximum
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Impreza SPECIFICATIONS 1 EC K0 KS Option code K4 EC Model 1.6 L 2.0 L AWD TS GX 4AT 5MT Curb weight (C.W.) Front kgf (lb) 755 775 770 770 760 750 770 765 (1,644) (1,709) (1,698) (1,698) (1,676) (1,654) (1,698) (1,687) Rear kgf (lb) 520 520 520 520 530 535 535 535 (1,146) (1,146) (1,146) (1,146) (1,168) (1,179) (1,179) (1,179) Total kgf (lb) 1,275 1,295 1,290 1,290 1,295 1,285 1,305 1,300 (2,810) (2,855) (2,844) (2,844) (2,855) (2,833) (2,877) (2,866) Maximum permissible Front kgf (lb) 890 89
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Impreza SPECIFICATIONS 1 E2 K4 K0 EC Option code KS Model 2.0 L AWD GX 5MT 4AT Curb weight (C.W.) Front kgf (lb) 770 765 770 765 760 765 775 795 (1,698) (1,687) (1,698) (1,687) (1,676) (1,687) (1,709) (1,753) Rear kgf (lb) 535 535 535 530 525 560 530 530 (1,179) (1,179) (1,179) (1,168) (1,157) (1,235) (1,168) (1,168) Total kgf (lb) 1,305 1,300 1,305 1,295 1,285 1,325 1,305 1,325 (2,877) (2,866) (2,877) (2,855) (2,833) (2,921) (2,877) (2,921) Maximum permissible Front kgf (lb) 950 950 950 950
