TROUBLE DIAGNOSIS
AT-45
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4. Securely engage the parking brake so that the tires do not turn.
5. Start the engine, then measure the line pressure at both idle and
the stall speed.
CAUTION:
lKeep the brake pedal pressed all the way down during
measurement.
lWhen measuring the line pressure at the stall speed.
Refer toAT-43, "
STALL TEST".
6. After the measurements are complete, install the oil pressure
detection plug and tighten to the specified torque. Refer toAT-
251, "Components".
CAUTION:
lDo not reuse O-ring.
lApply ATF to O-ring.
Line Pressure
Judgement of Line Pressure Test
SAT513G
SAT493G
Engine speedLine pressure [kPa (bar, kg/cm
2,psi)]
“R” position “D” position
At idle speed 425 - 465 (4.3 - 4.6, 4.3 - 4.7, 62 - 67) 379 - 428 (3.8 - 4.3, 3.9 - 4.4, 55 - 62)
At stall speed 1,605 - 1,950 (16.0 - 19.5, 16.4 - 19.9, 233 - 283) 1,310 - 1,500 (13.1 - 15.0, 13.4 - 15.3, 190 - 218)
Judgement Possible cause
Idle speedLow for all positions
(“P”, “R”, “N” and “D”)Possible causes include malfunctions in the pressure supply system and low oil pump output.
For example
lOil pump wear
lPressure regulator valve or plug sticking or spring fatigue
lOil straineroil pumppressure regulator valve passage oil leak
lEngine idle speed too low
Only low for a specific
positionPossible causes include an oil pressure leak in a passage or device related to the position
after the pressure is distributed by the manual valve.
HighPossible causes include a sensor malfunction or malfunction in the line pressure adjustment
function.
For example
lAccelerator pedal position signal malfunction
lA/T fluid temperature sensor malfunction
lLine pressure solenoid malfunction (sticking in OFF state, filter clog, cut line)
lPressure regulator valve or plug sticking
AT-46
TROUBLE DIAGNOSIS
ROAD TEST
Description
lThe road test inspects overall performance of A/T and analyzes possible malfunction causes.
lThe road test is perform in the following three stages.
1. Check before engine is started. Refer toAT-46
.
2. Check at idle. Refer toAT-47
.
3. Cruise test.
lInspect all the items from Part 1 to Part 3. Refer toAT-48,AT-50,AT-51.
lBefore beginning the road test, check the test procedure and inspection items.
lTest all inspection items until the symptom is uncovered. Diagnose NG items when all road tests are com-
plete.
CheckBeforeEngineIsStartedECS00FX1
1.CHECK OD OFF INDICATOR LAMP
1. Park vehicle on level surface.
2. Move selector lever to “P” position.
3. Turn ignition switch OFF and wait at least 10 seconds.
4. Turn ignition switch ON. (Do not start engine.)
Does OD OFF indicator lamp light up for about 2 seconds?
YES >> 1. Turn ignition switch OFF.
2. Perform self-diagnosis and record all NG items onAT-38, "
DIAGNOSTIC WORKSHEET".
Refer toAT-80, "
SELF-DIAGNOSTIC RESULT MODE",AT-89, "TCM SELF-DIAGNOSTIC
PROCEDURE (WITHOUT CONSULT-II)".
3. Go toAT-47, "
Check at Idle".
NO >> Stop the road test and go toAT- 1 7 7 , "
OD OFF Indicator Lamp Does Not Come On".
Stall speedOil pressure does not
rise higher than the oil
pressure for idle.Possible causes include a sensor malfunction or malfunction in the pressure adjustment
function.
For example
lAccelerator pedal position signal malfunction
lTCM malfunction
lLine pressure solenoid malfunction (shorting, sticking in ON state)
lPressure regulator valve or plug sticking
lPilot valve sticking or pilot filter clogged
The pressure rises, but
does not enter the stan-
dard position.Possible causes include malfunctions in the pressure supply system and malfunction in the
pressure adjustment function.
For example
lAccelerator pedal position signal malfunction
lLine pressure solenoid malfunction (sticking, filter clog)
lPressure regulator valve or plug sticking
lPilot valve sticking or pilot filter clogged
Only low for a specific
positionPossible causes include an oil pressure leak in a passage or device related to the position
after the pressure is distributed by the manual valve. Judgement Possible cause
EC-314
INTAKE AIR CONTROL VALVE CONTROL SOLENOID VALVE
INTAKE AIR CONTROL VALVE CONTROL SOLENOID VALVE
PFP:16188
DescriptionEBS01KM5
Vibration when stopping the engine can be controlled by cutting
intake air right before the fuel is cut. The intake air control valve con-
trol solenoid valve (1) controls the ON-OFF load of the intake air
control valve actuator. As a result, the intake air control valve control
solenoid valve will be turned ON when the ignition switch is turned
OFF with the engine running and when the engine stalls. After the
engine has stopped, the intake air control valve control solenoid
valve will return to fully open.
l: Vehicle front
lElectronic controlled engine mount control solenoid valve (2)
lOil filter (3)
ECM Terminals and Reference ValueEBS01KM6
Specification data are reference valves, and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may damage the
ECM's transistor. Use a ground other than ECM terminals, such as the ground.
MBIB1226E
TERMI-
NAL
NO.WIRE
COLORITEM CONDITIONDATA
(DC Voltage and Pulse Signal)
15 GRIntake air control valve
control solenoid valve[Engine is running]BATTERY VOLTAGE
(11 - 14V)
[Engine is running]
[Ignition switch OFF]
lFor a few seconds after turning ignition
switch OFFApproximately 0.3V
105
11 3BR
BRECM relay (self shut-off)[Ignition switch OFF]
lFor a few seconds after turning ignition
switch OFFApproximately 1.0V
[Ignition switch OFF]
lMore than a few seconds after turning igni-
tion switch OFFBATTERY VOLTAGE
(11 - 14V)
11 9
120R
GPower supply for ECM[Ignition switch ON]BATTERY VOLTAGE
(11 - 14V)
INTAKE AIR CONTROL VALVE CONTROL SOLENOID VALVE
EC-317
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4.CHECK INTAKE AIR CONTROL VALVE CONTROL SOLENOID VALVE POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect intake air control valve control solenoid valve (1)
harness connector.
–: Vehicle front
–Electronic controlled engine mount control solenoid valve (2)
–Oil filter (3)
3. Turn ignition switch ON.
4. Check voltage between intake air control valve control solenoid
valve terminal 2 and ground with CONSULT-II or tester.
OK or NG
OK >> GO TO 6.
NG >> GO TO 5.
5.DETECT MALFUNCTIONING PART
Check the following.
lHarness connectors E9, F4
lHarness for open or short between IPDM E/R and intake air control valve control solenoid valve
lHarness for open or short between ECM and intake air control valve control solenoid valve
>> Repair open circuit or short to power in harness or connectors.
6.CHECK INTAKE AIR CONTROL VALVE CONTROL SOLENOID VALVE OUTPUT SIGNAL CIRCUIT
FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between ECM terminal 15 and intake air control valve control solenoid valve ter-
minal 1. Refer to Wiring Diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 7.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
7.CHECK INTAKE AIR CONTROL VALVE CONTROL SOLENOID VALVE
Refer toEC-318, "
Component Inspection".
OK or NG
OK >> GO TO 8.
NG >> Replace intake air control valve control solenoid valve.
MBIB1226E
Voltage: Battery voltage
PBIB0192E
Continuity should exist.
EC-318
INTAKE AIR CONTROL VALVE CONTROL SOLENOID VALVE
8.CHECK VACUUM PUMP
Refer toEM-42, "
VACUUM PUMP".
OK or NG
OK >> GO TO 9.
NG >> Replace vacuum pump assembly.
9.CHECK INTAKE AIR CONTROL VALVE ACTUATOR
1. Turn ignition switch OFF.
2. Install a vacuum pump A to intake air control valve actuator (1).
3. Make sure that the intake air control valve actuator rod moves
smoothly when applying vacuum of -53.3 kPa (-533 mbar, -400
mmHg, -15.75 inHg) and releasing it.
OK or NG
OK >> GO TO 10.
NG >> Replace intake air control valve actuator.
10.CHECK INTERMITTENT INCIDENT
Refer toEC-70, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT".
>>INSPECTION END
Component InspectionEBS01KM9
INTAKE AIR CONTROL VALVE CONTROL SOLENOID VALVE
1. Disconnect intake air control valve control solenoid valve (1)
harness connector.
l: Vehicle front
lElectronic controlled engine mount control solenoid valve (2)
lOil filter (3)
2. Apply 12V direct current between turbocharger boost control
solenoid valve terminals.
3. Check air passage continuity of intake air control valve control
solenoid valve under the following conditions.
Operation takes less than 1 second.
If NG, replace intake air control valve control solenoid valve.
MBIB1239E
MBIB1226E
CONDITIONSAir passage continuity
between (A) and (B)Air passage continuity
between (A) and (C)
12V direct current supply
between terminals (1) and (2)Ye s N o
No supply No Yes
MEC488B
EM-1
ENGINE MECHANICAL
B ENGINE
CONTENTS
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ENGINE MECHANICAL
PRECAUTIONS .......................................................... 4
Precautions for Draining Engine Coolant ................. 4
Precautions for Disconnecting Fuel Piping .............. 4
Precautions for Removal and Disassembly ............. 4
Precautions for Inspection, Repair and Replace-
ment ......................................................................... 4
Precautions for Assembly and Installation ............... 4
Parts Requiring Angle Tightening ............................. 4
Precautions For Liquid Gasket ................................. 5
REMOVAL OF LIQUID GASKET .......................... 5
LIQUID GASKET APPLICATION PROCEDURE..... 5
PREPARATION ........................................................... 6
Special Service Tools ............................................... 6
Commercial Service Tools ........................................ 8
NOISE, VIBRATION AND HARSHNESS (NVH)
TROUBLESHOOTING .............................................. 10
NVH Troubleshooting — Engine Noise .................. 10
Use the Chart Below to Help You Find the Cause
of the Symptom. ...................................................... 11
DRIVE BELTS ........................................................... 12
Checking Drive Belts .............................................. 12
Deflection Adjustment ............................................ 13
POWER STEERING OIL PUMP BELT ............... 13
A/C COMPRESSOR, ALTERNATOR AND
WATER PUMP BELT .......................................... 14
Removal and Installation ........................................ 14
REMOVAL ........................................................... 14
INSTALLATION ................................................... 14
AIR CLEANER AND AIR DUCT ............................... 15
Components ........................................................... 15
Removal and Installation ........................................ 15
REMOVAL ........................................................... 15
INSTALLATION ................................................... 16
CHANGING AIR CLEANER FILTER ................... 17
CHARGE AIR COOLER ........................................... 18
Components ........................................................... 18
Removal and Installation ........................................ 18
REMOVAL ........................................................... 18
INSPECTION AFTER REMOVAL ....................... 19
INSTALLATION ................................................... 19INTAKE MANIFOLD ................................................. 20
Components ........................................................... 20
Removal and Installation ........................................ 21
REMOVAL ........................................................... 21
INSPECTION AFTER REMOVAL ....................... 22
INSTALLATION ................................................... 22
INSPECTION AFTER INSTALLATION ................ 25
CATALYST ................................................................ 26
Components ........................................................... 26
Removal and Installation ........................................ 26
REMOVAL ........................................................... 26
INSTALLATION ................................................... 27
TURBO CHARGER ................................................... 28
Components ........................................................... 28
Removal and Installation ........................................ 29
REMOVAL ........................................................... 29
INSPECTION AFTER REMOVAL ....................... 30
TROUBLE DIAGNOSIS OF TURBOCHARGER... 32
INSTALLATION ................................................... 33
EXHAUST MANIFOLD ............................................. 34
Components ........................................................... 34
Removal and Installation ........................................ 34
REMOVAL ........................................................... 34
INSPECTION AFTER REMOVAL ....................... 35
INSTALLATION ................................................... 35
INSPECTION AFTER INSTALLATION ................ 35
OIL PAN AND OIL STRAINER ................................. 36
Components ........................................................... 36
Removal and Installation ........................................ 36
REMOVAL ........................................................... 36
INSPECTION AFTER REMOVAL ....................... 38
INSTALLATION ................................................... 38
INSPECTION AFTER INSTALLATION ................ 40
GLOW PLUG ............................................................ 41
Components ........................................................... 41
Removal and Installation ........................................ 41
REMOVAL ........................................................... 41
INSTALLATION ................................................... 41
VACUUM PUMP ........................................................ 42
INTAKE MANIFOLD
EM-21
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lRefer toGI-10, "Components"for symbol marks except in the above.
Removal and InstallationEBS01EJF
REMOVAL
WARNING:
To avoid the danger of being scalded, do not drain engine coolant when engine is hot.
1. Drain engine coolant. Refer toCO-7, "
Changing Engine Coolant".
2. Remove engine cover (1).
CAUTION:
Be careful not to damage engine cover surface.
3. Disconnect air inlet hose from throttle chamber. Refer toEM-18, "
CHARGE AIR COOLER".
4. Remove fuel filter. Refer toFL-4, "
FUEL FILTER".
5. Remove oil level gauge guide. Refer toEM-36, "
OIL PAN AND OIL STRAINER".
6. Remove fuel hoses and fuel gallery. Refer toEM-44, "
INJECTION TUBE AND FUEL INJECTOR".
lTo prevent fuel from flowing out, plug the opening of the hose with plug after disconnection.
CAUTION:
Be careful not to spill fuel in the engine component.
lAdd marks as necessary for easier installation.
7. Remove vacuum galleries and vacuum hoses.
lAdd marks as necessary for easier installation.
8. Disconnect EGR volume control valve water hoses and wiring harness.
9. Disconnect heater feed hose, water hoses, and remove heater feed pipe.
10. Remove EGR cooler (A/T models) or EGR tube (M/T models).
11. Remove injection tube center. Refer toEM-44, "
Removal and Installation".
CAUTION:
Be careful not to spill fuel in the engine component.
12. Remove water pipe.
1. Vacuum hose 2. Vacuum gallery 3. Vacuum hose
4. Bracket 5. Bracket 6. Gasket
7. Bracket 8. Intake manifold 9. Water hose
10. Heater feed pipe (M/T models) 11. O-ring 12. Vacuum hose
13. Vacuum gallery 14. Vacuum hose 15. Gasket
16. Throttle chamber 17. Gasket 18. Gasket
19. EGR passage 20. Gasket 21. Bracket
22. EGR volume control valve 23. Vacuum gallery 24. Bracket
25. Washer 26. Gasket 27. EGR tube (M/T models)
28. Water hose 29. Water hose 30. Clip (A/T models)
31. Water hose (A/T models) 32. Heater feed pipe (A/T models) 33. Water hose (A/T models)
34. EGR cooler (A/T models) 35. Gasket (A/T models) 36. EGR tube (A/T models)
37. Bracket (A/T models)
C. To heater return pipe E. To cylinder head F. To water outlet
G. To exhaust manifold H. To air inlet hose
Vehicle front
PBIC3409E
EM-44
INJECTION TUBE AND FUEL INJECTOR
INJECTION TUBE AND FUEL INJECTOR
PFP:00018
ComponentsEBS01EK6
lRefer toGI-10, "Components"for symbol marks except in the above.
Removal and InstallationEBS01E63
REMOVAL
1. Remove engine cover. Refer toEM-20, "INTAKE MANIFOLD".
2. Remove fuel filter. Refer toFL-4, "
FUEL FILTER".
CAUTION:
Be careful not to allow leaked fuel to contaminate engine room. Especially, ensure to keep engine
mounting insulator clear of fuel.
1. Eye-bolt 2. Cooper washer 3. Spill tube
4. Nozzle support 5. Pin 6. Fuel injector
7. O-ring 8. Nozzle gasket 9. Rocker cover
10. Nozzle oil seal 11. Washer 12. Injection tube No. 4
13. Injection tube No. 3 14. Injection tube No. 2 15. Injection tube No. 1
16. Insert rubber 17. Clip 18. Injection tube center
19. Spill hose 20. Fuel gallery 21. Spill hose
22. Fuel hose 23. Fuel pump 24. Cylinder head
25. Cooper washer 26. Fuel hose 27. Fuel rail
A. To fuel filter B.To fuel cooler (under floor) (4WD
models)
To fuel tank (2WD models)
Vehicle front
PBIC4046E