2004 SUBARU FORESTER spark plugs

PERIODIC MAINTENANCE SERVICE
PM
Page
1. General Description ....................................................................................2
2. Schedule .....................................................................................................3
3. Engine Oil....................................................................................................7
4. Engine Oil Filter...........................................................................................9
5. Spark Plugs ...............................................................................................10
6. V-belt .........................................................................................................11
7. Timing Belt ................................................................................................13
8. Fuel Line ...................................................................................................17
9. Fuel Filter ..................................................................................................18
10. Air Cleaner Element ..................................................................................19
11. Cooling System .........................................................................................20
12. Engine Coolant..........................................................................................21
13. Clutch System ...........................................................................................23
14. Transmission Gear Oil ..............................................................................24
15. Hill-holder System .....................................................................................25
16. ATF ...........................................................................................................26
17. Front & Rear Differential Oil ......................................................................28
18. Brake Line .................................................................................................30
19. Brake Fluid ................................................................................................32
20. Disc Brake Pads and Discs .......................................................................33
21. Brake Linings and Drums ..........................................................................34
22. Suspension ...............................................................................................36
23. Wheel Bearing...........................................................................................38
24. Axle Boots & Joints ...................................................................................39
25. Tire Rotation..............................................................................................40
26. Steering System (Power Steering) ............................................................41

PM-4
PERIODIC MAINTENANCE SERVICE
Schedule
2. EXCEPT FOR EUROPE AREA
For periodic maintenance of over 50,000 km (30,000 miles) or 48 months, carry out inspections by referring
to the following tables. For a maintenance period gone beyond these tables, apply them repeatedly as a set
of 50,000 km (30,000 miles) or 48 months.
For periodic maintenance of over 100,000 km (60,000 miles) or 48 months, carry out inspections by referring
to the following tables. For a maintenance period gone beyond these tables, apply them repeatedly as a set
of 100,000 km (60,000 miles) or 48 months.
Symbols used:
R: Replace
I: Inspection
(I): Recommended service for safe vehicle operation.
N
OTE:
(1) When the vehicle is used in extremely dusty conditions, the air cleaner element should be replaced more often.
(2) ATF filter is a maintenance free part. ATF filter needs replacement, when it is physically damaged or ATF leaked.Maintenance Interval
[Number of months or km (miles), whichever occurs first]
Months 12 24 36 48
Remarks ×1,000 km 5 12.5 25 37.5 50
×1,000 miles 3 7.5 15 22.5 30
1 Engine oil R R R R
2 Engine oil filter R R R R
Maintenance Interval
[Number of months or km (miles), whichever occurs first]
Months 12 24 36 48
Remarks ×1,000 km 1.6 25 50 75 100
×1,000 miles 1 15 30 45 60
3 Spark plugs For Turbo R
Others R R R R
4Drive belt(s) IIII
5 Camshaft drive belt R
6 Fuel line I I
7 Fuel filter R R
8 Air cleaner element I R I R
9 Cooling system I I
10 Coolant R R
11 Clutch system I I I I I
12 Hill-holder system I I I I I
13 Transmission oil R R
14 ATF R R
15 Front & rear differential oil R R
16 Brake line I I
17 Brake fluid R R
18 Disc brake pads & discs I I I I
19 Brake linings and drums I I
20 Parking brake I I I I
21 Suspension I I I I
22 Wheel bearing (I)
23 Axle boots & joints I I I I
24 Steering system (Power steering) I I I I

PM-10
PERIODIC MAINTENANCE SERVICE
Spark Plugs
5. Spark Plugs
A: REPLACEMENT
1) Remove the intake duct and intake chamber.
2) Remove the washer tank and put it aside.
3) Disconnect the spark plug cord.
4) Remove the spark plug with a plug-wrench.
5) Set the new spark plug.
Spark plug:
Non-turbo model
CHAMPION RC10YC4 (Standard)
NGK BKR5E-11 (Alternate)
2.0 L Turbo model
NGK PFR6G
2.5 L Turbo model
NGK ILFR6B
Spark plug gap:
Non-turbo model
1.0 — 1.1 mm (0.039 — 0.043 in)
Turbo model
0.7 — 0.8 mm (0.028 — 0.031 in)
6) Tighten the spark plug lightly with hand, and
then secure with a plug-wrench to the specified
torque.
Tightening torque:
21
±3 N·m (2.14±0.31 kgf-m, 15.49±2.21 ft-lb)
NOTE:
 Be sure to place the gasket between the cylinder
head and spark plug.
 If a torque wrench is not available, tighten the
spark plug until gasket contacts cylinder head; then
tighten further 1/4 to 1/2 turns.
PM-00001

FU(H4SO)-15
FUEL INJECTION (FUEL SYSTEM)
Intake Manifold
(7) Place the power steering pump on the right
side wheel apron.
8) Disconnect the spark plug cords from the spark
plugs.
9) Disconnect the PCV hose from the intake mani-
fold.
10) Disconnect the engine coolant hose (A) from
the throttle body.
11) Disconnect the brake booster hose.12) Remove the air cleaner case stay RH and en-
gine harness bracket, and disconnect the engine
harness connectors from the bulkhead harness
connectors.
13) Disconnect the connectors from the engine
coolant temperature sensor.
14) Disconnect the knock sensor connector.
15) Disconnect the connector from the crankshaft
position sensor.
FU-00021
FU-00141
FU-00361
(A)(A)
FU-00143
FU-00258
FU-00145
FU-00062
FU-00056

FU(H4SO)-18
FUEL INJECTION (FUEL SYSTEM)
Intake Manifold
10) Connect the brake booster hose.
11) Connect the engine coolant hose (A) to the
throttle body.
12) Connect the PCV hose to the intake manifold.
13) Connect the spark plug cords to the spark
plugs.
14) Install the power steering pump and reservoir
tank to bracket.
(1) Install the reservoir tank to bracket.(2) Connect the connector to the power steering
pump switch.
(3) Tighten the bolts which install power steer-
ing pump bracket.
Tightening torque:
22 N
⋅m (2.2 kgf-m, 15.9 ft-lb)
(4) Install the power steering pipes onto the
right side intake manifold protector.
(5) Install the front side V-belt. ME(H4SO)-43, INSTALLATION, V-belt.>
FU-00143
FU-00361
(A)(A)
FU-00141
FU-00020
FU-00017
FU-00139
FU-00255

FU(H4SO)-35
FUEL INJECTION (FUEL SYSTEM)
Fuel Injector
13.Fuel Injector
A: REMOVAL
1. RH SIDE
1) Release the fuel pressure.
PRESSURE, OPERATION, Fuel.>
2) Open the fuel flap lid, and remove the fuel filler
cap.
3) Disconnect the ground cable from battery.
4) Remove the resonator chamber. IN(H4SO)-8, REMOVAL, Resonator Chamber.>
5) Remove the spark plug cords from the spark
plugs (#1 and #3 cylinders).6) Remove the power steering pump and reservoir
tank from the brackets.
(1) Remove the front side V-belt. ME(H4SO)-43, REMOVAL, V-belt.>
(2) Remove the bolts which hold the power
steering pipes onto the intake manifold protec-
tor.
(3) Remove the bolts which install the power
steering pump to the bracket.
(4) Disconnect the connector from the power
steering pump switch.
FU-00009
FU-00302
FU-00255
FU-00139
FU-00017

FU(H4SO)-37
FUEL INJECTION (FUEL SYSTEM)
Fuel Injector
2. LH SIDE
1) Release the fuel pressure. 47, RELEASING OF FUEL PRESSURE, OPERA-
TION, Fuel.>
2) Open the fuel flap lid, and remove the fuel filler
cap.
3) Disconnect the ground cable from battery.
4) Remove the two bolts which install the washer
tank on the body.
5) Disconnect the connector from the front window
washer motor.
6) Disconnect the connector from the rear gate
glass washer motor.
7) Disconnect the rear window glass washer hose
from the washer motor, then plug the connection
with a suitable cap.8) Move the washer tank, and secure it away from
the working area.
9) Remove the spark plug cords from the spark
plugs (#2 and #4 cylinders).
10) Remove the fuel pipe protector LH.
11) Disconnect the connector from the fuel injector.
FU-00009
FU-00190
FU-00191
FU-00192
FU-00307
FU-00266
FU-00308

ME(H4SO)-25
MECHANICAL
Compression
2. Compression
A: INSPECTION
CAUTION:
After warming-up, engine becomes very hot. Be
careful not to burn yourself during measure-
ment.
1) After warming-up the engine, turn the ignition
switch to OFF.
2) Make sure that the battery is fully charged.
3) Release the fuel pressure. 47, RELEASING OF FUEL PRESSURE, OPERA-
TION, Fuel.>
4) Remove all the spark plugs. 5, REMOVAL, Spark Plug.>
5) Fully open the throttle valve.
6) Check the starter motor for satisfactory perfor-
mance and operation.
7) Hold the compression gauge tight against spark
plug hole.
NOTE:
When using a screw-in type compression gauge,
the screw (put into cylinder head spark plug hole)
should be less than 18 mm (0.71 in) long.
8) Crank the engine by means of starter motor, and
then read the maximum value on the gauge when
the pointer is steady.
9) Perform at least two measurements per cylinder,
and make sure that the values are correct.
Compression (350 rpm and fully open throttle):
Standard;
1,275 kPa (13.0 kgf/cm
2, 185 psi)
Limit;
1,020 kPa (10.4 kgf/cm
2, 148 psi)
Difference between cylinders;
49 kPa (0.5 kgf/cm
2, 7 psi), or less
ME-00192