air filter SUBARU FORESTER 2004 Service Owner's Manual
[x] Cancel search | Manufacturer: SUBARU, Model Year: 2004, Model line: FORESTER, Model: SUBARU FORESTER 2004Pages: 2870, PDF Size: 38.67 MB
Page 2139 of 2870
EN(H4DOTC 2.5)-115
ENGINE (DIAGNOSTIC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
T: DTC P0171 SYSTEM TOO LEAN (BANK 1)
NOTE:
For diagnostic procedure, refer to DTC P0172.
U: DTC P0172 SYSTEM TOO RICH (BANK 1)
DTC DETECTING CONDITION:
Two consecutive driving cycles with fault
TROUBLE SYMPTOM:
Erroneous idling
Engine stalls.
Poor driving performance
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode
Step Check Yes No
1 CHECK EXHAUST SYSTEM.Are there holes or loose bolts
on exhaust system?Repair exhaust
system.Go to step 2.
2 CHECK AIR INTAKE SYSTEM.Are there holes, loose bolts or
disconnection of hose on air
intake system?Repair air intake
system.Go to step 3.
3 CHECK FUEL PRESSURE.
Warning:
Place “NO FIRE” signs near the working
area.
Be careful not to spill fuel.
1) Release the fuel pressure.
(1) Disconnect the connector from fuel
pump relay.
(2) Start the engine and run it until it stalls.
(3) After the engine stalls, crank it for five
more seconds.
(4) Turn the ignition switch to OFF.
2) Connect the connector to fuel pump relay.
3) Disconnect the fuel delivery hose from fuel
filter, and connect the fuel pressure gauge.
4) Install the fuel filler cap.
5) Start the engine and idle while gear posi-
tion is neutral.
6) Measure the fuel pressure while discon-
necting pressure regulator vacuum hose from
intake manifold.
Warning:
Release fuel pressure before removing the
fuel pressure gauge.
N
OTE:
If fuel pressure does not increase, squeeze the
fuel return hose 2 to 3 times, then measure fuel
pressure again.Is measured value 284 — 314
kPa (2.9 — 3.2 kg/cm
2, 41 —
46 psi)?Go to step 4.Repair the follow-
ing items.
Fuel pressure is
too high:
Clogged fuel
return line or
bent hose
Fuel pressure is
too low:
Improper fuel
pump discharge
Clogged fuel
supply line
Page 2283 of 2870
EN(H4DOTC 2.5)-259
ENGINE (DIAGNOSTIC)
General Diagnostic Table
*1: Check ignition coil & ignitor ASSY and spark plug.
*2: Indicate the symptom occurring only in cold temperatures.
*3: Ensure the secure installation.
*4: Check fuel injector, fuel pressure regulator and fuel filter.
*5: Inspect air leak in air intake system. 7. Spark knock1) Manifold absolute pressure sensor
2) Mass air flow and intake air temperature sensor
3) Engine coolant temperature sensor
4) Knock sensor
5) Fuel injection parts (*4)
6) Fuel pump and fuel pump relay
8. After burning in exhaust system1) Manifold absolute pressure sensor
2) Mass air flow and intake air temperature sensor
3) Engine coolant temperature sensor (*2)
4) Fuel injection parts (*4)
5) Fuel pump and fuel pump relay Symptom Problem parts
Page 2313 of 2870
AUTOMATIC TRANSMISSION
4AT
Page
1. General Description ....................................................................................2
2. Automatic Transmission Fluid ...................................................................30
3. Differential Gear Oil...................................................................................31
4. Road Test..................................................................................................32
5. Stall Test ...................................................................................................33
6. Time Lag Test ...........................................................................................35
7. Line Pressure Test ....................................................................................36
8. Transfer Clutch Pressure Test ..................................................................38
9. Automatic Transmission Assembly ...........................................................39
10. Transmission Mounting System ................................................................47
11. Extension Case Oil Seal ...........................................................................49
12. Differential Side Retainer Oil Seal.............................................................50
13. Inhibitor Switch ..........................................................................................51
14. Front Vehicle Speed Sensor .....................................................................55
15. Rear Vehicle Speed Sensor ......................................................................59
16. Torque Converter Turbine Speed Sensor .................................................60
17. Control Valve Body ...................................................................................61
18. Air Bleeding of Control Valve ....................................................................70
19.
Shift Solenoids, Duty Solenoids and ATF Temperature Sensor.........................71
20. Transfer Duty Solenoid and Valve Body ...................................................73
21. ATF Filter ..................................................................................................76
22. Transmission Control Module (TCM) ........................................................77
23. Dropping Resistor .....................................................................................78
24. ATF Cooler Pipe and Hose .......................................................................79
25. ATF Cooler (With Warmer Function).........................................................84
26. Air Breather Hose......................................................................................87
27. Oil Charger Pipe........................................................................................88
28. Torque Converter Clutch Assembly ..........................................................89
29. Extension Case .........................................................................................90
30. Transfer Clutch..........................................................................................92
31. Reduction Driven Gear..............................................................................97
32. Reduction Drive Gear................................................................................99
33. Parking Pawl ...........................................................................................101
34. Torque Converter Clutch Case ...............................................................102
35. Oil Pump Housing ...................................................................................105
36. Drive Pinion Shaft Assembly ...................................................................111
37. Front Differential......................................................................................117
38. AT Main Case .........................................................................................123
39. Transmission Control Device ..................................................................142
Page 2320 of 2870
4AT-8
AUTOMATIC TRANSMISSION
General Description
(1) ATF level gauge (19) Oil filter (41) Transmission case
(2) ATF charger pipe (20) Oil filter stud bolt (42) Plate ASSY
(3) O-ring (21) Drain plug (ATF) (43) Washer
(4) Transfer valve plate (22) Gasket (44) Bushing (turbo model)
(Non-turbo model) (23) Oil pan (45) ATF cooler inlet pipe (model with
ATF cooler (with warmer func-
tion)) (5) Transfer valve ASSY (24) Magnet
(Non-turbo model) (25) Stud bolt (Short)
(6) Transfer clutch seal
(Non-turbo model)(26) Stud bolt (Long) (46) ATF cooler outlet pipe (model
with ATF cooler (with warmer
function)) (27) Parking rod
(7) Transfer duty solenoid (non-turbo
model)(28) Manual plate
(29) Spring pin
(8) Straight pin (30) Detention springTightening torque: N
⋅m (kgf-m, ft-lb)
(9) Return spring (31) BallT1: 3.4 (0.35, 2.6)
(10) Shaft (32) SpringT2: 5 (0.5, 3.6)
(11) Parking pawl (33) GasketT3: 6 (0.6, 4.4)
(12) Parking support (34) ATF cooler outlet pipe (model
without ATF cooler (with warmer
function))T4: 8 (0.8, 6)
(13) Inlet filter (Non-turbo model)T5: 12 (1.2, 8.7)
(14) GasketT6: 13 (1.3, 10)
(15) ATF cooler inlet pipe (model with-
out ATF cooler (with warmer func-
tion))(35) Union screwT7: 14 (1.4, 10)
(36) Oil sealT8: 18 (1.8, 13)
(37) Range select leverT9: 25 (2.5, 18.1)
(16) Union screw (38) Inhibitor switch ASSYT10: 45 (4.6, 33.2)
(17) O-ring (39) NippleT11: 21 (2.1, 15.5)
(18) Test plug (40) Air breather hose
Page 2379 of 2870
4AT-66
AUTOMATIC TRANSMISSION
Control Valve Body
3) Remove the upper and lower control valve body
installing bolt.
NOTE:
While assembling, safekeeping the bolt to identify
bolt position, because the bolt length is different.
4) Remove the lower control valve body.
5) Remove the oil filter and separate plate.
6) Remove the six steel balls from middle control
valve body.
7) Remove the middle control valve body.8) Remove the upper separator plate from middle
control valve body.
9) Remove the four steel balls and accumulator
spring from upper control valve body.
10) Put the cloth to removing part of piston.
11) Remove the accumulator piston with slowly ap-
ply compressed air to each hole.
12) Remove the seal ring from accumulator piston.
(A) Oil filter
(B) Separate plate
(A) Steel ball
(B) Middle control valve body
AT-02125
B
B
BB D
C
B
D
AA
AA
AT-00068(A)(B)
AT-00069
(A)(B)
(A) Upper separate plate
(B) Side plate
AT-00070
(A)
(B)
AT-00071
AT-00072