Mitsubishi Outlander GS45X. Manual — part 1575

SERVICE SPECIFICATIONS

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ENGINE COOLING

14-3

<3.0L ENGINE>

SERVICE SPECIFICATIONS

M1141000302100

COOLANT

M1141000401955

NOTE: *similar high quality ethylene glycol based non-silicate, non-amine, non-nitrate and non-borate cool-
ant with long life hybrid organic acid technology.

AC808975AB

Radiator lower hose

Radiator
condenser tank
assembly

Radiator upper hose
assembly

Radiator assembly

A/T fluid cooler
feed hose assembly

Radiator fan
motor

Condenser fan
motor

Fan shroud

Item

Standard value

Limit

Valve opening pressure of radiator cap kPa (psi)

93

− 123 (14 − 18)

Minimum 83 (12)

Range of coolant antifreeze concentration of radiator %

30

− 60

-

Thermostat

Valve opening temperature
of thermostat

°C (°F)

2.4L ENGINE

87

± 1.5 (189 ± 3)

-

3.0L ENGINE

82

± 1.5 (180 ± 3)

-

Full-opening temperature of thermostat

°C (°F)

95 (203)

-

Valve lift mm (in)

2.4L ENGINE

8.5 (0.335) or more

-

3.0L ENGINE

9.0 (0.354) or more

-

Item

Recommended antifreeze

Quantity dm

3

(qt)

Engine coolant [includes
0.65 dm

3

(0.69 qt) in the

radiator condenser tank]

Automatic
transaxle

DIA QUEEN SUPER LONG LIFE COOLANT
PREMIUM or equivalent*

9.5 (10.0)

CVT

7.5 (7.9)

SEALANT

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ENGINE COOLING

14-4

SEALANT

M1141000501758

ENGINE COOLING DIAGNOSIS

INTRODUCTION

M1141005300411

The system cools the engine so that it does not over-
heat and maintains the engine at an optimum tem-
perature. The system components are the radiator,
water pump, thermostat, condenser fan assembly.
Possible faults include low coolant, contamination,
belt loosening and component damage.

TROUBLESHOOTING STRATEGY

M1141005200403

Use these steps to plan your diagnostic strategy. If
you follow them carefully, you will be sure to find
most of the engine cooling faults.
1. Gather information from the customer.

2. Verify that the condition described by the

customer exists.

3. Find and repair the malfunction by following the

SYMPTOM CHART.

4. Verify that the malfunction is eliminated.

SYMPTOM CHART

M1141005600694

Item

Specified sealant

Engine coolant temperature sensor

ThreeBond 1324N, Loctite 262 or equivalent

Symptom

Inspection
procedure

Reference page

Coolant leak

1

P.14-5

Engine overheating

2

P.14-6

Radiator fan and condenser fan do not operate <2.4L ENGINE>

3

P.14-7

Radiator fan and condenser fan do not operate <3.0L ENGINE>

4

P.14-15

ENGINE COOLING DIAGNOSIS

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ENGINE COOLING

14-5

SYMPTOM PROCEDURES

Inspection Procedure 1: Coolant Leak

DIAGNOSIS

STEP 1. Check for coolant leaks.

WARNING

When pressure testing the cooling system, slowly
release cooling system pressure to avoid getting
burned by hot coolant.

CAUTION

• Be sure to completely clean away any moisture from

the places checked.

• When the tester is removed, be careful not to spill any

coolant.

• When installing and removing the tester and when test-

ing, be careful not to deform the filler neck of the radia-
tor.

Check that the coolant level is up to the filler neck. Install a radi-
ator tester and apply 160 kPa (23 psi) pressure, and then check
for leakage from the radiator hose or connections.
Q: Is leakage present from the radiator hose or

connections?
YES : Repair or replace the appropriate part, then go to

Step 2.

NO : There is no action to be taken.

STEP 2. Retest the system.
Q: It there still coolant leakage?

YES : Return to Step 1.
NO : The procedure is complete.

AC702800

Cap adapter

Adapter

AB

ENGINE COOLING DIAGNOSIS

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ENGINE COOLING

14-6

Inspection Procedure 2: Engine Overheating

DIAGNOSIS

STEP 1. Remove the radiator cap and check for coolant
contamination.
Q: Is the coolant contaminated with rust and oil?

YES : Replace it. Refer to

P.14-26

.

NO : There is no action to be taken. Go to Step 2.

STEP 2. Check the radiator cap valve opening pressure.
NOTE: Be sure that the cap is clean before testing. Rust or
other foreign material on the cap seal will cause an improper
reading.
(1) Use a cap adapter to attach the cap to the tester.
(2) Increase the pressure until the gauge indicator stops

moving.

Minimum limit: 83 kPa (12 psi)
Standard value: 93

− 123 kPa (14 − 18 psi)

Q: Does the reading remain at or above the minimum limit?

YES : Go to Step 3.
NO : Replace the radiator cap. Then go to Step 5.

STEP 3. Check thermostat operation.
Refer to

P.14-38

.

Q: Does the thermostat operate correctly?

YES : Go to Step 4.
NO : Replace the thermostat, then go to Step 5.

STEP 4. Check the drive belt for slippage or damage.
Refer to GROUP 00, Maintenance Service

− Drive Belt (For

The Generator, Water Pump and Power Steering Pump)
(Check Condition)

P.00-74

.

Q: Is the drive belt loose or damaged?

YES : Adjust or replace the drive belt, then go to Step 5.
NO : There is no action to be taken.

STEP 5. Retest the system.
Check the engine coolant temperature.
Q: Is the engine coolant temperature abnormally high?

YES : Return to Step 2.
NO : The procedure is complete.

AC703098

Cap adapter

AB