Page 1

FOREWORD FOREWORD

1. Foreword A: FOREWORD These manuals are used when performing maintenance, repair, or diagnosis of the Subaru IMPREZA. 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


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 component. 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 information necessary for repair work (tightening torque, grease up points, etc.) is described on these illustrations. Information is described using symbol. To order the parts, refer to parts catalogue.

HU-2


HOW TO USE THIS MANUAL HOW TO USE THIS MANUAL

Example:

(7)

(5)

(20) (21)

T2

(5)

T6

(8)

(1)

T1

T3

(4)

(2) T8

T2

(3) (6)

T3

(1)

T5

T3

T2

T10

T3 (2)

T4 (4)

(4)

(3)

(12) (22) (23) (16) (14)

(9)

(6)

(10) (11)

(11) (10)

(9)

T3

(18) T1

(13) (15)

T2

(17) (19)

T6 (4)

(3) (7)

T4

(10) (4)

(15)

T2 T11

T5

(22)

T6

(3)

(12)

(35)

T4

(8)

T3

(26) (23)

(14)

T2

T5

(27)

T2

(10)

(34)

(24) (25)

T7 (24)

(36)

(25)

(13)

(31) (30)

T2

T5 (29)

(10) (17)

(16)

(37) (32)

(28)

(18) T3

(33)

T4 T1

:Selective part

T1

:Replacement part (21)

:Sealing point :Should be lubricated with oil.

(20) T9

:Should be lubricated with grease.

(19) T1

,

T2

.... :Tightening torque HU-00001

4. SPECIFICATIONS

5. INSPECTION

If necessary, specifications are also included.

Inspections are included to be carried out before and after maintenance.

HU-3


HOW TO USE THIS MANUAL HOW TO USE THIS MANUAL

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 reference are provided for each part. Example:

15.Main Shaft Assembly for Single-Range A: REMOVAL

(A)

(B)

1) Remove the manual transmission assembly from vehicie. <Ref. to MT-33, REMOVAL, Manual Transmission Assembly.> (C)

11) Tighten the lock nuts to the specified torque using ST1 and ST2. NOTE: Secure the lock nuts in two Places affer tightening. ST2 499987003 SOCKET WRENCH ST1 498937000 TRANSMISSION HOLDER (E)

(D)

(F)

Tightening torque: 118 N m (12.0 kgf-m, 86.8 ft-lb)

(G)

(H)

ST2

ST1

HU-00002

(A) (B) (C)

Component Process Reference

(D) (E) (F)

Caution Tool number of special tool Name of special tool

(G) (H)

Tightening torque Illustration

7. DIAGNOSIS

8. SI UNITS

Tables showing a step-by-step process make it easy to conduct diagnosis.

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)

HU-4


IMPREZA SPECIFICATIONS

1. Impreza A: DIMENSIONS Model Overall length Overall width Overall height (at C.W.) Length Width Compartment Height Wheelbase Tread

★2

1,740 (68.4) 1,440 (56.7) 1,890 (74.4)

mm (in)

1,180 (46.5), 1,125 (44.3)★2

Front

mm (in) mm (in)

Rear

mm (in)

Minimum road clearance ★1

Sedan mm (in) mm (in) mm (in) mm (in) mm (in)

mm (in)

1,485 (58.5) 1,475 (58.1), 1,480 (58.3)★1 150 (5.9), 155 (6.1)★1

Wagon

OUTBACK 4,415 (173.8) 1,695 (66.7) 1,710 (67.3) 1,485 (58.5) 1,495 (58.9) 1,845 (72.6) 1,380 (54.3) 1,200 (47.2), 1,200 (47.2), 1,150 (45.3)★2 1,150 (45.3)★2 2,525 (99.4) 1,465 (57.7) 1,460 (57.5)

STi 1,740 (68.1) 1,430 (56.3) 1,890 (74.4)

1,180 (46.5) 2,540 (100.0) 1,490 (58.7)

1,455 (57.3)

1,455 (57.3)

1,485 (58.5)

150 (5.9), 155 (6.1)★1

160 (6.3)

145 (5.7)

: WRX : With sun roof

B: ENGINE Model Engine type Valve arrangement Bore × Stroke

mm (in) 3

Displacement Compression ratio Firing order

cm (cu in)

1,994 (121.67) 8.0±0.2

Idle speed at Park/Neutral position Maximum output Maximum torque

Turbo 2.0 L 2.5 L STi Horizontally opposed, liquid cooled, 4-cylinder, 4-stroke gasoline engine Overhead camshaft type 92 × 75 (3.62 × 2.95) 99.5 × 79 (3.92 × 3.11)

rpm

kW (HP)/rpm N·m (kgf-m, ft-lb)/rpm

750±100 169 (227)/6,000 294 (30.0, 217)/4,000

2,457 (149.9) 10.0±0.2 1—3—2—4 MT: 650±100 AT: 700±100 123 (165)/5,600 226 (23.0, 166)/4,000

8.2±0.2

700±100 224 (300)/6,000 407 (41.5, 300)/4,000

C: ELECTRICAL Model

Turbo 2.0 L

Ignition timing at idling

Spark plug

BTDC

Type and manufacturer

Generator Battery

Type and capacity (5HR)

2.5 L MT: 10°±8° 12°±10° AT: 15°±8° CHAMPION: RC10YC4 (standard) NGK: PFR6G NGK: BKR5E-11 NGK: BKR6E-11 12 V — 75 A MT: 12 V — 48 AH MT: 12 V — 48 AH (55D23L) (55D23L) AT: 12 V — 52 AH AT: 12 V — 52 AH (65D23L) (75D23L)

SPC-2

STi 17°±10°

NGK: IFLR6B 12 V — 90 A 12 V — 48 AH (55D23L)


IMPREZA SPECIFICATIONS

D: TRANSMISSION Model Transmission type Clutch type

Gear ratio

1st reduction Reduction gear (Front drive)

Final reduction Transfer reduction

Reduction gear (Rear drive)

Final reduction

Turbo 2.0 L 5MT 4AT DSPD TCC

5MT DSPD

1st

3.454

2.785

3.454

2nd

1.947

1.545

2.062

1.366 0.972 0.738 — 3.333 — — — Hypoid

1.000 0.694 — — 2.272 — Helical 1.000 Hypoid

3.900

4.111

Helical 1.100 Hypoid

— — Hypoid

3.545

4.111

1.448 1.088 0.780 — 3.333 — — — Hypoid 3.900, 4.111★1 Helical 1.000 Hypoid 3.900, 4.111★1

3rd 4th 5th 6th Reverse Dual range Type of gear Gear ratio Type of gear Gear ratio Type of gear Gear ratio Type of gear Gear ratio

2.5 L

STi 6MT DSPD

4AT TCC 2.785, 3.027★1 1.545, 1.619★1 1.000 0.694 — — 2.272 — Helical 1.000 Hypoid 4.111, 4.444★1 — — Hypoid 4.111, 4.444★1

3.636 2.375 1.761 1.346 0.971 0.756 3.545 — — — Hypoid 3.900 Helical 1.000 Hypoid 3.900

5MT: 5-forward speeds with synchromesh and 1-reverse 4AT: Electronically controlled fully-automatic, 4-forward speeds and 1-reverse 6MT: 6-forward speeds with synchromesh and 1-reverse DSPD: Dry Single Plate Diaphragm TCC: Torque Converter Clutch ★1 : Sedan model

E: STEERING Model Type Turns, lock to lock Minimum turning circle

TS

Curb to curb m (ft) Wall to wall

3.2 10.2 (33.5) 11.1 (36.3)

RS, OUTBACK, WRX Rack and Pinion 3.0 10.8 (35.4) 11.7 (38.3)

STi 2.7

F: SUSPENSION Front Rear

Macpherson strut type, Independent, Coil spring Dual-link type, Independent, Coil spring

SPC-3


IMPREZA SPECIFICATIONS

G: BRAKE Model Service brake system Front Rear Parking brake

Turbo 2.0 L, 2.5 L STi Dual circuit hydraulic with vacuum suspended power unit Ventilated disc brake Disc brake Ventilated disc brake Mechanical on rear brakes

H: TIRE Model

TS 15 × 6JJ

STi

16 × 6 /2JJ 17 × 71/2JJ P195/60R15 87H P205/55R16 89V 225/45R17 90W Steel belted radial, Tubeless

Rim size Tire size Type

I:

RS, OUTBACK, WRX 1

CAPACITY Turbo 2.0 L 5MT 4AT

Model Fuel tank Total capacity Engine oil amount for refill Transmission gear oil ATF Front differential gear oil Rear differential gear oil Power steering fluid Engine coolant Engine oil

2 (US gal, Imp gal) 2 (US qt, Imp qt) 2 (US qt, Imp qt) 2 (US qt, Imp qt) 2 (US qt, Imp qt) 2 (US qt, Imp qt) 2 (US qt, Imp qt) 2 (US qt, Imp qt) 2 (US qt, Imp qt)

4.5 (4.8, 4.0)

2.5 L 5MT 4AT 60 (15.9, 13.2) 4.0 (4.2, 3.5)

STi 6MT

4.5 (4.8, 4.0) Approx. 4.5 Approx. 4.5 (4.8, 4.0) Approx. 4.0 (4.2, 3.5) (4.8, 4.0) 3.5 (3.7, 3.1) — 3.5 (3.7, 3.1) — 4.1 (4.3, 3.6) — 9.3 (9.8, 8.2) — 9.3 (9.8, 8.2) — — 1.2 (1.3, 1.1) — 1.2 (1.3, 1.1) — 0.8 (0.8, 0.7) 1.0 (1.1, 0.9) 0.7 (0.7, 0.6) 7.7 (8.1, 6.8) 7.6 (8.0, 6.7) 7.0 (7.4, 6.2) 6.9 (7.3, 6.1) 7.7 (8.1, 6.8)

SPC-4


IMPREZA SPECIFICATIONS

J: WEIGHT 1. FOR U.S. MODEL Sedan 2.5 L RS

Model Curb weight (C.W.) Gross axle weight (G.A.W.) Option

Front kgf (lb) Rear kgf (lb) Total kgf (lb) Front kgf (lb) Rear kgf (lb) Total kgf (lb) Power window Power door lock Cruise control ABS Air conditioner Cold W package Sun roof Dual airbag Side airbag Rear spoiler Seat in pure hide Front LSD Aluminum Gold color wheel Silver color

5MT 778 (1,715) 567 (1,250) 1,345 (2,965) 939 (2,070) 907 (2,000) 1,778 (3,920) ❍ ❍ ❍ ❍ ❍ — — ❍ — — — — — —

4AT 803 (1,770) 567 (1,250) 1,370 (3,020) 939 (2,070) 907 (2,000) 1,778 (3,920) ❍ ❍ ❍ ❍ ❍ — — ❍ — — — — — —

850 (1,875) 574 (1,265) 1,424 (3,140) 998 (2,200) 916 (2,020) 1,837 (4,050) ❍ ❍ ❍ ❍ ❍ — — ❍ ❍ — — — — —

Turbo 2.0 L WRX 4AT 857 (1,889) 586 (1,292) 1,443 (3,181) 998 (2,200) 916 (2,020) 1,837 (4,050) ❍ ❍ ❍ ❍ ❍ ❍ ❍ ❍ ❍ ❍ — — — —

Model Curb weight (C.W.) Gross axle weight (G.A.W.) Option

Front kgf (lb) Rear kgf (lb) Total kgf (lb) Front kgf (lb) Rear kgf (lb) Total kgf (lb) Power window Power door lock Cruise control ABS Air conditioner Cold W package Sun roof Dual airbag Side airbag Rear spoiler Seat in pure hide Front LSD Aluminum Gold color wheel Silver color

SPC-5

826 (1,820) 573 (1,265) 1,399 (3,085) 998 (2,200) 916 (2,020) 1,837 (4,050) ❍ ❍ ❍ ❍ ❍ — — ❍ ❍ — — — — —

Turbo 2.0L WRX 5MT 832 (1,834) 586 (1,292) 1,418 (3,126) 998 (2,200) 916 (2,020) 1,837 (4,050) ❍ ❍ ❍ ❍ ❍ ❍ ❍ ❍ ❍ ❍ — — — —

858 (1,891) 588 (1,297) 1,446 (3,188) 998 (2,200) 916 (2,020) 1,837 (4,050) ❍ ❍ ❍ ❍ ❍ ❍ ❍ ❍ ❍ ❍ ❍ — — —

Turbo 2.5 L STi 6MT 863 (1,903) 863 (1,903) 613 (1,351) 613 (1,351) 1,476 (3,254) 1,476 (3,254) 1,030 (2,271) 1,030 (2,271) 920 (2,028) 920 (2,028) 1,880 (4,145) 1,880 (4,145) ❍ ❍ ❍ ❍ ❍ ❍ ❍ ❍ ❍ ❍ — — — — ❍ ❍ ❍ ❍ — — — — ❍ ❍ ❍ — — ❍

833 (1,836) 588 (1,297) 1,421 (3,133) 998 (2,200) 916 (2,020) 1,837 (4,050) ❍ ❍ ❍ ❍ ❍ ❍ ❍ ❍ ❍ ❍ ❍ — — —


Thank you very much for your reading. Please Click Here Then Get More Information.

2004 Subaru Impreza WRX STi Service Repair Manual  
2004 Subaru Impreza WRX STi Service Repair Manual  
Advertisement