Mitsubishi Galant (2004+). Manual - part 150

 

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Mitsubishi Galant (2004+). Manual - part 150

 

 

SPECIAL TOOLS

TSB Revision

ENGINE MECHANICAL <3.8L ENGINE>

11C-7

MB991454
Engine hanger balancer

MZ203827-01

When the engine hanger is used: 
Supporting the engine assembly 
during removal and installation of 
the transaxle assembly
NOTE: Special tool MB991454 is a 
part of engine hanger attachment 
set MB991453.

MB991895
Engine hanger

Tool not available

MB991928
Engine hanger

A: MB991929

Joint (50) 

×2

B: MB991930

Joint (90) 

×2

C: MB991931

Joint (140) 

×2

D: MB991932

Foot (standard) 

×4

E: MB991933

Foot (short) 

×2

F: MB991934

Chain and hook 
assembly

Tool not available

TOOL

TOOL NUMBER AND 
NAME

SUPERSESSION APPLICATION

B991454

MB991895

B991928

A

B

C

D

E

F

SLIDE BRACKET (HI)

ON-VEHICLE SERVICE

TSB Revision

ENGINE MECHANICAL <3.8L ENGINE>

11C-8

ON-VEHICLE SERVICE

DRIVE BELT TENSION CHECK AND 
ADJUSTMENT

M1111003100496

Refer to GROUP 00, Maintenance Service 

− Drive Belts 

(Check Condition) 

P.00-43

.

IGNITION TIMING CHECK

M1111001700500

Required Special Tool:
MB991958: Scan Tool (MUT-III Sub Assembly)

• MB991824: V.C.I.

• MB991827: MUT-III USB Cable

• MB991910: MUT-III Main Harness A

1. Before checks, set the vehicle in the following condition:

• Engine coolant temperature: 80 − 95°C (176 − 203°F)

• Lights and all accessories: OFF

• Transaxle: P range

NOTE: Vehicles for Canada, the headlight, taillight, etc. 
remain lit even when the lighting switch is in "OFF" position 
but this is no problem for checks.

CAUTION

To prevent damage to scan tool MB991958, always turn the 
ignition switch to the "LOCK" (OFF) position before con-
necting or disconnecting scan tool MB991958.
2. Connect scan tool MB991958 to the data link connector.
3. Set up a timing light.
4. Start the engine and run it at idle.
5. Check that the idle speed is approximately 680 r/min.
6. Select scan tool MB991958 actuator test "item number 17".
7. Check that basic ignition timing is within the standard value.

Standard value: 5

° BTDC ± 3°

8. If the basic ignition timing is not within the standard value, 

check the following items:

• Diagnostic output

• Timing belt cover and crankshaft position sensor installation 

conditions

• Crankshaft sensing blade condition

CAUTION

If the actuator test is not canceled, the forced drive will 
continue for 27 minutes. Driving in this state could lead to 
engine failure.
9. Press the clear key on scan tool MB991958 (select forced 

drive stop mode), and cancel the actuator test.

10.Check that the actual ignition timing is at the standard value.

Standard value: Approximately 10

° BTDC

NOTE: Ignition timing fluctuates about 

±

 7

°

 Before Top Dead 

Center, even under normal operating condition.
NOTE:  It is automatically further advanced by about 5

°

 to 

10

°

 Before Top Dead Center at higher altitudes.

AC302077
AC305412

AC306958AB

MB991824

MB991910

MB991668

DATA LINK

CONNECTOR

ON-VEHICLE SERVICE

TSB Revision

ENGINE MECHANICAL <3.8L ENGINE>

11C-9

CURB IDLE SPEED CHECK

M1111003500579

Required Special Tool:
MB991958: Scan Tool (MUT-III Sub Assembly)

• MB991824: V.C.I.

• MB991827: MUT-III USB Cable

• MB991910: MUT-III Main Harness A

1. Before checks, set the vehicle in the following condition:

• Engine coolant temperature: 80 − 95°C (176 − 203°F)

• Lights and all accessories: OFF

• Transmission: P range

NOTE: Vehicles for Canada, the headlight, taillight, etc. 
remain lit even when the lighting switch is in "OFF" position 
but this is no problem for checks.

CAUTION

To prevent damage to scan tool MB991958, always turn the 
ignition switch to the "LOCK" (OFF) position before con-
necting or disconnecting scan tool MB991958.
2. Connect scan tool MB991958 to the data link connector.
3. Check the basic ignition timing.

Standard value: 5

° BTDC ± 3°

4. Start the engine.
5. Run the engine at idle for 2 minutes.
6. Check the idle speed. Select item number 22 and take a 

reading of the idle speed.

Curb idle speed: 650 

± 100 r/min

NOTE: The idle speed is controlled automatically by the idle 
air control system.

7. If the idle speed is outside the standard value, refer to 

GROUP 13B, Multiport Fuel Injection (MFI) <3.8L Engine> 

− 

Multiport Fuel Injection (MFI) Diagnosis 

− Symptom Chart 

P.13B-37

.

IDLE MIXTURE CHECK

M1111002100329

Required Special Tool:
MB991958: Scan Tool (MUT-III Sub Assembly)

• MB991824: V.C.I.

• MB991827: MUT-III USB Cable

• MB991910: MUT-III Main Harness A

1. Before checks, set the vehicle in the following condition:

• Engine coolant temperature: 80 − 95°C (176 − 203°F)

• Lights and all accessories: OFF

• Transmission: P range

NOTE: Vehicles for Canada, the headlight, taillight, etc. 
remain lit even when the lighting switch is in "OFF" position 
but this is no problem for checks.

AC302077
AC305412

AC306958AB

MB991824

MB991910

MB991668

DATA LINK

CONNECTOR

ON-VEHICLE SERVICE

TSB Revision

ENGINE MECHANICAL <3.8L ENGINE>

11C-10

CAUTION

To prevent damage to scan tool MB991958, always turn the 
ignition switch to the "LOCK" (OFF) position before con-
necting or disconnecting scan tool MB991958.
2. Connect scan tool MB991958 to the data link connector.
3. Check that the basic ignition timing is within the standard 

value. 

Standard value: 5

° BTDC ± 3°

4. Start the engine and increase the engine speed to 2,500 

r/min for 2 minutes.

5. Set the CO, HC tester.
6. Check the CO contents and the HC contents at idle.

Standard value:

CO contents: 0.5% or less
HC contents: 100 ppm or less

7. If the CO and HC contents do not remain inside the standard 

value, check the following items:
NOTE: Replace the catalytic converter when the CO and HC 
contents do not remain inside the standard value, even 
though the result of the inspection is normal for all items.

• Diagnostic output

• Closed-loop control (When the closed-loop control is carried 

out normally, the output signal of the heated oxygen sensor 
changes between 0 

− 400 mV and 600 − 1,000 mV at idle.)

• Fuel pressures

• Injector

• Ignition coil, spark plug

• EGR system and EGR valve leak

• Evaporative emission system

• Compression pressure

COMPRESSION PRESSURE CHECK

M1111002600614

1. Before checks, check that the engine oil, starter and battery 

are normal. Also, set the vehicle in the following condition:

• Engine coolant temperature: 80 − 95°C (176 − 203°F)

• Lights and all accessories: OFF

• Transmission: P range

NOTE: Vehicles for Canada, the headlight, taillight, etc. 
remain lit even when the lighting switch is in "OFF" position 
but this is no problem for checks.

2. Remove all of the ignition coils.

AC302077
AC305412

AC306958AB

MB991824

MB991910

MB991668

DATA LINK

CONNECTOR

 

 

 

 

 

 

 

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