Mitsubishi Outlander XL. Manual - part 505

INSPECTION PROCEDURE 10: The select shock is large when the transmission range
is shifted from "N" to "D", and "N" to "R."

M12301000448USA0000010000

TROUBLESHOOTING HINTS (THE MOST LIKELY
CAUSES FOR THIS CONDITION:)

｠

Malfunction of the engine: Idle speed

｠

Poor adjustment of transmission range switch

｠

Malfunction of the TCM

｠

A/T  failure:  Hydraulic  system  (valve  body
assembly),  driving  force  transmission  system
(clutch/brake)

DIAGNOSIS

STEP 1. Check the engine performance.
Especially  check  that  the  idle  speed  does  not  exceed  the
specified value.

Q:Is the check result normal?

YES:

 Go to Step 2.

NO:

 Repair the failure, and perform adjustment.

STEP 2. Check and adjust the transmission range switch.
Refer to P.23A-157, P.23A-157.
If the transmission range switch has a failure, replace it, and then
check the trouble symptom again.

Q:Is the check result normal?

YES:

 The procedure is complete.

NO:

 Go to Step 3.

STEP 3. Replace the TCM.

Q:Is the failure resolved?

YES:

 The procedure is complete.

NO:

 Go to Step 4.

STEP 4. Compare with another same model vehicle.

Q:Is there a difference from the same model vehicle?

YES:

 Go to Step 5.

NO:

 The procedure is complete.

STEP 5. Remove the transaxle assembly from the vehicle.
Disassemble and check the transaxle assembly to check if there
is a foreign material inside.

Q:Is the check result satisfactory?

YES:

 Replace the transaxle assembly.

NO:

 Replace the failure part.

AUTOMATIC TRANSAXLE MECHANICAL

23A-135

AUTOMATIC TRANSAXLE DIAGNOSIS

INSPECTION PROCEDURE 11: Abnormal sound occurs during idling.

M12301000449USA0000010000

TROUBLESHOOTING HINTS (THE MOST LIKELY
CAUSES FOR THIS CONDITION:)

｠

Malfunction  of  the  engine:  Abnormal  sound  of
auxiliary parts

｠

Transmission fluid level

｠

Installation of torque converter

｠

A/T failure: Hydraulic system (valve body assembly,
hydraulic circuit)

NOTE:

Inspection items for abnormal sound

1.

Check  of  sound  source  and  incoming  route
(radiated  sound,  propagation  sound,  resonance,
etc.),  and  measurement  at  driver's  seat,  front
passenger's seat, and rear passenger's seat

2.

Change of sound during cold and after warm up
(Change of fluid, and hydraulic pressure)

3.

Change of sound with the engine speed

4.

Check  of  tone,  and  continuous/discontinuous
sound

DIAGNOSIS

STEP 1. Check the engine performance.
Check  the  sound  of  engine,  auxiliary  parts,  and  resonance/
nonresonance.

Q:Is the check result normal?

YES:

 Go to Step 2.

NO:

 Repair the failure, and perform adjustment.

STEP 2. Check the transmission fluid level.
Check if the transmission fluid level is adequate.

Q:Is the check result normal?

YES:

 Go to Step 4.

NO:

 Go to Step 3.

STEP 3. Check and repair the leakage point of the
transmission fluid.
Check and repair the leakage point of the transmission fluid, and
adjust the transmission fluid level. Then check if the abnormal
sound is generated.

Q:Is the check result normal?

YES:

 The procedure is complete.

NO:

 Go to Step 4.

STEP 4. Check the transmission fluid.
Check  the  transmission  fluid  for  burning,  fouling,  and  foreign
material.

Q:Is the check result normal?

YES:

 Go to Step 5.

NO:

 Go to Step 8.

STEP 5. Retest the system.
Check if the abnormal sound during idling occurs with vibration.

Q:Is the check result normal?

YES:

 Go to Step 6.

23A-136

AUTOMATIC TRANSAXLE MECHANICAL

AUTOMATIC TRANSAXLE DIAGNOSIS

NO:

 Go to Step 7.

STEP 6. Check the torque converter.
Check the torque converter installation, change the installation
phase, and then check the trouble symptom.

Q:Is the check result normal?

YES:

 The procedure is complete.

NO:

 Go to Step 7.

STEP 7. Compare with another same model vehicle.

Q:Is there a difference from the same model vehicle?

YES:

 Go to Step 8.

NO:

 The procedure is complete.

STEP 8. Remove the transaxle assembly from the vehicle.
Disassemble and check the transaxle assembly to check if there
is a foreign material inside.

Q:Is the check result satisfactory?

YES:

 Replace the transaxle assembly.

NO:

 Replace the failure part.

INSPECTION PROCEDURE 12: Abnormal sound occurs during driving.

M12301000450USA0000010000

TROUBLESHOOTING HINTS (THE MOST LIKELY
CAUSES FOR THIS CONDITION:)

｠

Engine- and body-related failures: Abnormal sound
of auxiliary parts, drive shaft, wheel bearing

｠

Installation of non-genuine aeroparts to the body

｠

Abnormal  incoming  route  of  sound:  Installation  of
transaxle  control  cable,  damping  device,  sound
isolation device

｠

Malfunction of the torque converter

｠

A/T  failure:  Driving  force  transmission  system
(gear),  hydraulic  system  (valve  body  assembly,
hydraulic circuit)

NOTE:

Inspection items for abnormal sound

1.

Check  of  sound  source  and  incoming  route
(radiated  sound,  propagation  sound,  resonance,
etc.),  and  measurement  at  driver's  seat,  front
passenger's seat, and rear passenger's seat

2.

Change of sound during cold and after warm up
(Change of fluid, and hydraulic pressure)

3.

Change  of  sound  with  the  engine  speed  (r/min
order change)

4.

Change  of  sound  with  the  vehicle  speed  (r/min
order change, wind noise)

5.

Change of sound with the throttle valve opening
(engine  output  change,  hydraulic  pressure
change)

DIAGNOSIS

STEP 1. Check the body and engine performance.

｠

Check if a non-genuine aeropart is installed to the body.

｠

Check  the  engine  auxiliary  parts,  drive  shaft,  and  wheel
bearing.

｠

Check if the abnormal sound changes in accordance with the
engine speed, or the vehicle speed.

Q:Is the check result normal?

YES:

 Go to Step 2.

AUTOMATIC TRANSAXLE MECHANICAL

23A-137

AUTOMATIC TRANSAXLE DIAGNOSIS

NO:

 Repair the failure, and perform adjustment.

STEP 2. Check the installation of the transaxle control
cable, damping device, and sound isolation device.

Q:Is the check result normal?

YES:

 Go to Step 3.

NO:

 Repair the failure, and perform adjustment.

STEP 3. Check the abnormal sound.

Q:Does the abnormal sound change in accordance with the

vehicle speed?

YES:

 Go to Step 5.

NO:

 Go to Step 4.

STEP 4. Check the abnormal sound.

Q:Does the abnormal sound change in accordance with the

throttle  valve  opening?  Or  is  it  the  transmission  fluid

sound especially caused at start-up?

YES:

 Replace the torque converter.

NO:

 Go to Step 5.

STEP 5. Compare with another same model vehicle.

Q:Is there a difference from the same model vehicle?

YES:

 Go to Step 6.

NO:

 The procedure is complete.

STEP 6. Remove the transaxle assembly from the vehicle.
Disassemble and check the transaxle assembly to check if there
is a foreign material inside.

Q:Is the check result satisfactory?

YES:

 Replace the transaxle assembly.

NO:

 Replace the failure part.

INSPECTION PROCEDURE 13: Abnormal sound occurs during gear shift.

M12301000451USA0000010000

TROUBLESHOOTING HINTS (THE MOST LIKELY
CAUSES FOR THIS CONDITION:)

｠

Abnormal  incoming  route  of  sound:  Installation  of
transaxle  control  cable,  damping  device,  sound
isolation device

｠

A/T  failure:  Driving  force  transmission  system
(gear),  hydraulic  system  (valve  body  assembly,
hydraulic circuit)

NOTE:

Inspection items for abnormal sound

1.

Check  of  sound  source  and  incoming  route
(radiated  sound,  propagation  sound,  resonance,

etc.),  and  measurement  at  driver's  seat,  front
passenger's seat, and rear passenger's seat

2.

Change of sound during cold and after warm up
(Change of fluid, and hydraulic pressure)

3.

Change of sound with the throttle valve opening
(engine  output  change,  hydraulic  pressure
change)

4.

Change  of  sound  on  a  flat  road,  upslope,  and
downslope

5.

Check of tone

DIAGNOSIS

23A-138

AUTOMATIC TRANSAXLE MECHANICAL

AUTOMATIC TRANSAXLE DIAGNOSIS