Mitsubishi Galant. Manual - part 342

EXHAUST PIPE, MAIN MUFFLER AND CATALYTIC CONVERTER<2.4L>

TSB Revision

INTAKE AND EXHAUST

15-18

EXH A U ST PIPE, M A IN  M U FFLER  A N D  C ATA LYTIC  

C O N VER TER <2.4L>

REMOVAL AND INSTALLATION

M1151005400077

REMOVAL SERVICE POINT

<<A>> HEATED OXYGEN SENSOR (REAR) REMOVAL
Use special tool MD998770 to remove the oxygen sensor.

AC004227

1

2

3

4

5

6

7

8

9

10

10

N

N

N

49 N·m
36 ft-lb

12 N·m
106  in-lb

49 N·m
36 ft-lb

12 N·m
106 in-lb

12 N·m
106 in-lb

12 N·m
106 in-lb

12 N·m
106 in-lb

12 N·m
106 in-lb

34 N·m
25 ft-lb

44 N·m
32 ft-lb

AB

MAIN MUFFLER REMOVAL 
STEPS

1.

MAIN MUFFLER

2.

HANGER

3.

HANGER
CENTER EXHAUST PIPE RE-
MOVAL STEPS

4.

CENTER EXHAUST PIPE

5.

HANGER

6

.

HANGER

7.

PROTECTOR

FRONT EXHAUST PIPE 
REMOVAL STEPS

<<A>>

>>A<<

8.

HEATED OXYGEN SENSOR 
(REAR)

9.

FRONT EXHAUST PIPE 
(CATALYTIC CONVERTER 
INCORPORATED)

10

HANGER

ACX02426 AB

MD998770

EXHAUST PIPE, MAIN MUFFLER AND CATALYTIC CONVERTER<3.0L>

TSB Revision

INTAKE AND EXHAUST

15-19

INSTALLATION SERVICE POINT

>>A<< HEATED OXYGEN SENSOR (REAR) INSTALLATION
Use special tool MD998770 to installation the oxygen sensor.

EXH A U ST PIPE, M A IN  M U FFLER  A N D  C ATA LYTIC  

C O N VER TER <3.0 L>

REMOVAL AND INSTALLATION

M1151005400088

ACX02426 AB

MD998770

AC004228

44 N·m
32 ft-lb

N

44 N·m
32 ft-lb

12 N·m
106 in-lb

32 N·m
24 ft-lb

12 N·m
106 in-lb

N

44 N·m
32 ft-lb

N

N

N

34 N·m
25 ft-lb

12 N·m
106 in-lb

49 N·m
36 ft-lb

49 N·m
36 ft-lb

49 N·m
36 ft-lb

N

34 N·m
25 ft-lb

12 N·m
106 in-lb

12 N·m
106 in-lb

12 N·m
106 in-lb

34 N·m
25 ft-lb

AB

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

12 N·m
106 in-lb

32 N·m
24 ft-lb

MAIN MUFFLER REMOVAL 
STEPS

1.

MAIN MUFFLER

2.

HANGER

3.

HANGER
CENTER EXHAUST PIPE 
REMOVAL STEPS

4.

CENTER EXHAUST PIPE

5.

HANGER

6

.

HANGER

7.

PROTECTOR

FRONT EXHAUST PIPE 
REMOVAL STEPS (LEFT BANK 
SIDE)

8.

HANGER

<<A>>

>>A<<

9.

LEFT BANK HEATED OXYGEN 
SENSOR (REAR)

10. EXHAUST FITTING STAY (LH)
11. FRONT CATALYTIC CONVERTER

(LH)
FRONT EXHAUST PIPE 
REMOVAL STEPS (RIGHT BANK 
SIDE)

<<A>>

>>A<<

12. RIGHT BANK HEATED OXYGEN 

SENSOR (FRONT)

<<A>>

>>A<<

13. RIGHT BANK HEATED OXYGEN 

SENSOR (REAR)

14. EXHAUST FITTING STAY (RH)

SPECIFICATIONS

TSB Revision

INTAKE AND EXHAUST

15-20

REMOVAL SERVICE POINT

<<A>> LEFT BANK HEATED OXYGEN SENSOR (REAR)/
RIGHT BANK HEATED OXYGEN SENSOR (REAR)/RIGHT 
BANK HEATED OXYGEN SENSOR (FRONT) REMOVAL
Use special tool MD998770 to remove the oxygen sensor.

INSTALLATION SERVICE POINT

>>A<<RIGHT BANK HEATED OXYGEN SENSOR (FRONT)/
RIGHT BANK HEATED OXYGEN SENSOR (REAR)/LEFT 
BANK HEATED OXYGEN SENSOR (REAR) INSTALLATION
Use special tool MD998770 to installation the oxygen sensor.

SPECIFIC ATIO NS

FASTENER TIGHTENING SPECIFICATIONS

M1151006800078

15. FRONT CATALYTIC CONVERTER

(RH)

16. FRONT EXHAUST PIPE 

(CATALYTIC CONVERTER 
INCORPORATED)

FRONT EXHAUST PIPE 
REMOVAL STEPS (LEFT BANK 
SIDE) (Continued)

ACX02426 AB

MD998770

ACX02426 AB

MD998770

ITEMS

SPECIFICATIONS

Air cleaner

Air cleaner bolt

8.8 N

⋅

m (78 in-lb)

Air flow sensor nut

8.8 N

⋅

m (78 in-lb)

SPECIFICATIONS

TSB Revision

INTAKE AND EXHAUST

15-21

Air intake hose clamp bolt

3.9 N

⋅

m (35 in-lb)

Exhaust manifold <2.4L Engine>

Engine hanger nut

29 N

⋅

m (22 ft-lb)

Exhaust manifold bracket bolt

35 N

⋅

m (26 ft-lb)

Exhaust manifold nut

M8

29 N

⋅

m (22 ft-lb)

M10

49 N

⋅

m (35 ft-lb)

Front exhaust pipe nut

49 N

⋅

m (35 ft-lb)

Heat protector bolt

12 

−

 15 N

⋅

m

 (105 

−

 133 in-lb)

Heated oxygen sensor (front)

44 N

⋅

m (32 ft-lb)

Exhaust manifold <3.0L Engine>

EGR pipe bolt

59 N

⋅

m (44 ft-lb)

EGR pipe gasket bolt

17 N

⋅

m (13 ft-lb)

Exhaust manifold nut

44 N

⋅

m (32 ft-lb)

Heat front protector <right bank> bolt

13 N

⋅

m (115 in-lb)

Heat lower protector <left bank> bolt

13 N

⋅

m (115 in-lb)

Heat lower protector <right bank> bolt

13 N

⋅

m (115 in-lb)

Heat protector <left bank> bolt

13 N

⋅

m (115 in-lb)

Heat protector <right bank> bolt

13 N

⋅

m (115 in-lb)

Heat upper protector <left bank> bolt

13 N

⋅

m (115 in-lb)

Heat upper protector <right bank> bolt

13 N

⋅

m (115 in-lb)

Left bank heated oxygen sensor (front)

44 N

⋅

m (32 ft-lb)

Exhaust pipe and main muffler <2.4L Engine>

Center exhaust pipe bolt

34 N

⋅

m (25 ft-lb)

Front exhaust pipe nut

49 N

⋅

m (36 ft-lb)

Hanger bolt

12 N

⋅

m (106 in-lb)

Heated oxygen sensor (rear)

44 N

⋅

m (32 ft-lb)

Exhaust pipe and main muffler <3.0L Engine>

Center exhaust pipe bolt

34 N

⋅

m (25 ft-lb)

Exhaust fitting stay (LH)

M8

12 N

⋅

m (106 in-lb)

M12

32 N

⋅

m (24 ft-lb)

Exhaust fitting stay (RH)

M8

12 N

⋅

m (106 in-lb)

M12

32 N

⋅

m (24 ft-lb)

Front catalytic converter (LH) nut

34 N

⋅

m (25 ft-lb)

Front catalytic converter (RH) nut

34 N

⋅

m (25 ft-lb)

Front exhaust pipe nut

49 N

⋅

m (36 ft-lb)

Hanger bolt

12 N

⋅

m (106 in-lb)

Left bank heated oxygen sensor (rear)

44 N

⋅

m (32 ft-lb)

Right bank heated oxygen sensor (front)

44 N

⋅

m (32 ft-lb)

Right bank heated oxygen sensor (rear)

44 N

⋅

m (32 ft-lb)

ITEMS

SPECIFICATIONS