Mitsubishi Galant (2004+). Manual — part 1654

THERMOSTAT

TSB Revision

ENGINE COOLING

14-15

THERMOSTAT

REMOVAL AND INSTALLATION

M1141002400475

<2.4L ENGINE>

Pre-removal and Post-installation Operation
• Engine Coolant Draining and Refilling (Refer to

P.14-7

).

• Powertrain Control Module (PCM) Removal and Installa-

tion (Refer to GROUP 13A, Powertrain Control Module

(PCM)

P.13A-1121

).

• Air Cleaner Cover and Air Intake Hose Removal and

Installation (Refer to GROUP 15, Air Cleaner

P.15-4

).

• Battery and Battery Tray Removal and Installation.

AC306674

1

2

3

4

2

13 ± 2 N·m
111 ± 22 in-lb

11 ± 1 N·m
98 ± 8 in-lb

11 ± 1 N·m
98 ± 8 in-lb

AB

REMOVAL STEPS

<<A>> >>B<<

1.

RADIATOR LOWER HOSE
CONNECTION

2.

HARNESS BRACKET

3.

WATER INLET FITTING

>>A<<

4.

THERMOSTAT

REMOVAL STEPS (Continued)

THERMOSTAT

TSB Revision

ENGINE COOLING

14-16

<3.8L ENGINE>

Pre-removal and Post-installation Operation
• Engine Coolant Draining and Refilling (Refer to

P.14-7

).

• Engine Cover Removal and Installation (Refer to GROUP

11C, Engine Assembly

P.11C-15

).

• Powertrain Control Module (PCM) Removal and Installa-

tion (Refer to GROUP 13B, Powertrain Control Module

(PCM)

P.13B-1146

).

• Air Cleaner Removal and Installation (Refer to GROUP

15, Air Cleaner

P.15-4

).

• Strut Tower Bar Removal and Installation (Refer to

GROUP 42, Strut Tower Bar

P.42-12

).

• Battery and Battery Tray Removal and Installation

AC306935

5.0 ± 1.0 N·m
44 ± 9 in-lb

8

7

3

4

9

13

14

20

16

12

6

5

19

18

17

2

1

9.0 ± 2.0 N·m
80 ± 17 in-lb

15

5.0 ± 1.0 N·m
44 ± 9 in-lb

22 ± 4 N·m
16 ± 3 ft-lb

13

10

11

AB

REMOVAL STEPS

1.

LEFT BANK HEATED OXYGEN
SENSOR (REAR) CONNECTOR

2.

LEFT BANK HEATED OXYGEN
SENSOR (FRONT) CONNECTOR

3.

RIGHT BANK HEATED OXYGEN
SENSOR (REAR) CONNECTOR

4.

RIGHT BANK HEATED OXYGEN
SENSOR (FRONT) CONNECTOR

5.

THROTTLE BODY ASSEMBLY
CONNECTOR

6.

EVAPORATIVE EMISSION
PURGE SOLENOID CONNECTOR

7.

MANIFOLD ABSOLUTE
PRESSURE SENSOR
CONNECTOR

8.

POWER STEERING PRESSURE
SWITCH CONNECTOR

9.

CONTROL WIRING HARNESS
AND WIRING HARNESS
COMBINATION CONNECTOR

10. KNOCK SENSOR CONNECTOR
11. CRANKSHAFT POSITION

SENSOR CONNECTOR

12. EXHAUST GAS RECIRCULATION

VALVE CONNECTOR

13. INJECTOR CONNECTOR
14. ENGINE COOLANT

TEMPERATURE SENSOR
CONNECTOR

15. CAPACITOR CONNECTOR

REMOVAL STEPS (Continued)

THERMOSTAT

TSB Revision

ENGINE COOLING

14-17

REMOVAL SERVICE POINT

.

<<A>> RADIATOR LOWER HOSE DISCONNECTION
Make mating marks on the radiator hose and the hose clamp.
Disconnect the radiator hose.

16. CAMSHAFT POSITION SENSOR

CONNECTOR

17. INHIBITOR SWITCH SENSOR

CONNECTOR

18. A/T CONTROL SOLENOID VALVE

ASSEMBLY CONNECTOR

19. OUTPUT SHAFT SPEED

SENSOR CONNECTOR

20. INPUT SHAFT SPEED SENSOR

CONNECTOR

REMOVAL STEPS (Continued)

AC306959AB

19 ± 1 N·m
14 ± 1 ft-lb

21

22

23

REMOVAL STEPS

<<A>> >>B<<

21. RADIATOR LOWER HOSE

CONNECTION

22. WATER INLET FITTING

>>A<<

23. THERMOSTAT

REMOVAL STEPS (Continued)

AC200641AB

MATING MARKS

THERMOSTAT

TSB Revision

ENGINE COOLING

14-18

INSTALLATION SERVICE POINTS

.

>>A<< THERMOSTAT INSTALLATION

CAUTION

Make absolutely sure that no oil adheres to the rubber ring
of the thermostat. Also do not fold or scratch the rubber
ring during installation.
Install the thermostat so that the jiggle valve is facing straight
up. Be careful not to fold or scratch the rubber ring.

.

>>B<< RADIATOR LOWER HOSE CONNECTION
1. Insert each hose as far as the projection of the water inlet

fitting.

2. Align the mating marks on the radiator hose and hose

clamp, and then connect the radiator hose.

INSPECTION

M1141002500450

.

Thermostat Check
1. Immerse the thermostat in water, and heat the water while

stirring. Check the thermostat valve opening temperature.

Standard value:

Valve opening temperature:

<2.4L Engine> 82

± 1.5°C (180 ± 3°F)

<3.8L Engine> 88

± 1.5°C (190 ± 3°F)

AC000279

JIGGLE VALVE

RUBBER RING

AB

AC200642

MATING
MARKS

PROJECTION

WATER INLET
FITTING

AE

ACX00400