Engine Cooling System: Other Mitsubishi Outlander III

COOLANT

COOLANT SPECIFICATIONS

SEALANT

SEALANT SPECIFICATION

ENGINE COOLANT LEAK CHECK

Scheme 21

1. Check that the engine coolant level is up to the filler neck. Install a radiator tester and apply 160 kPa (23 psi) pressure, and then check for engine coolant leakage from the radiator hose or connections.
2. If there is engine coolant leakage, repair or replace the appropriate part.

Scheme 22

1. Use a cap adapter to attach the radiator cap to the tester. NOTE: Be sure that the radiator cap is clean before testing. Rust or other foreign material on the radiator cap seal will cause an improper reading.
2. Increase the pressure until the indicator of the gauge stops moving. Minimum limit: 83 kPa (12 psi) Standard value: 93 - 123 kPa (14 - 18 psi)
3. Replace the radiator cap if the reading does not remain at or above the limit.

WATER PUMP COOLANT LEAK CHECK

Even when the water pump is normal, a residue of the engine coolant draining may be found on the drain hole, the vapor hole and the installation surface of the water pump. If a residue of the engine coolant draining is found, check the water pump leakage by following method.

1. Wipe off the residue of the engine coolant draining on the water pump. WARNING: Make sure that the engine coolant is cold when removing the radiator cap.
2. Remove the radiator cap. CAUTION: Do not pressures 100 kPa (15 psi) or more.
3. Install the radiator tester and pressures at 100 kPa (15 psi.)
4. Hold the pressurized state for 20 minutes, and check that the engine coolant leakage from the drain hole, the vapor hole or the installation surface of the water pump.
5. Remove the radiator tester, and install the radiator cap.
6. Warm up the engine, let it idle for 20 minutes and stop it.
7. After stopping the engine, and check that the engine coolant leakage from the drain hole, the vapor hole or the installation surface of the water pump.
8. If the engine coolant leakage is found in step 4 or 7 , replace the water pump (Refer to «REMOVAL AND INSTALLATION»(ref-593034-S20526010052014011300000) .

FAN CONTROL RELAY CHECK

FAN CONTROL RELAY CHECK

Scheme 23

RADIATOR FAN RELAY CHECK

RADIATOR FAN RELAY CHECK

Scheme 24

CONDENSER FAN RELAY CHECK

CONDENSER FAN RELAY CHECK

Scheme 25

Scheme 26

Scheme 27

Scheme 28

1. Disconnect the fan motor connector.
2. Check that the fan motor runs when a positive battery terminal is connected to the fan motor-side connector terminal number 1, and terminal number 2 is grounded. Also check to see that there is no abnormal sound emitted from the fan motor at this time.
3. If the fan motor is defective, replace it (Refer to «REMOVAL AND INSTALLATION»(ref-593034-S24947225992014011300000) .
4. Connect the fan motor connector.

Scheme 29

Scheme 30

Scheme 31

1. Make mating marks on the radiator lower hose and the hose clip (as shown in illustration) to install them in the original position.
2. Break off the tip of hose clip claw and spread out the hose clip, then disconnect the radiator lower hose. NOTE: If there is a hose clip claw, the hose clip cannot spread to capacity because the claw contacts the hose clip.

>> B << RADIATOR LOWER HOSE/HOSE CLIP CONNECTION

Scheme 32

1. Make mating mark on a new hose clip in the same position as the remove one.
2. Insert the radiator lower hose until the protrusion of the water inlet fitting.
3. Align the mating marks on the radiator lower hose and hose clip.
4. Remove the hose clip claw and shorten the hose clip, then install the radiator lower hose.

Scheme 33

Scheme 34

1. Immerse the thermostat in water, and heat the water while stirring. Check the thermostat valve opening temperature. Standard value: 87 ± 1.5°C (189 ± 3°F)
2. Check that the amount of valve lift is at the standard value when the water is at the full-opening temperature. NOTE: Measure the valve height when the thermostat is fully closed, and use this measurement to compare the valve height when the thermostat is fully open. Standard value: Full-opening temperature: 95°C (203°F) Amount of valve lift: 8.5 mm (0.33 inch) or more

Scheme 35

Scheme 36

Required Special Tool

1. MB992042: Water Temperature Sensor Wrench

<< A >> HOSE CLIP/RADIATOR UPPER HOSE DISCONNECTION

1. Make mating marks on the radiator upper hose and the hose clip (as shown in illustration) to install them in the original position.
2. Break off the tip of hose clip claw and spread out the hose clip, then disconnect the radiator upper hose. NOTE: If there is a hose clip claw, the hose clip cannot spread to capacity because the claw contacts the hose clip.

>> C << RADIATOR UPPER HOSE/HOSE CLIP CONNECTION

Scheme 37

1. Make mating mark on a new hose clip in the same position as the remove one.
2. Insert the radiator upper hose until the protrusion of the water outlet fitting.
3. Align the mating marks on the radiator upper hose and hose clip.
4. Remove the hose clip claw and shorten the hose clip, then install the radiator upper hose.

WATER PIPE AND HOSE CHECK

Check the water pipe and hose for cracks, damage and clogs. Replace them if necessary.

Scheme 38

>> A << RADIATOR UPPER HOSE/RADIATOR LOWER HOSE/HOSE CLIP CONNECTION

Scheme 39

1. Make mating mark on a new hose clip in the same position as the remove one.
2. Insert the radiator hose until the protrusion of the pipe.
3. Align the mating marks on the radiator hose and hose clip.
4. Remove the hose clip claw and shorten the hose clip, then install the radiator hose.