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ON-VEHICLE SERVICE

ENGINE COOLING

14-15

ON-VEHICLE SERVICE

ENGINE COOLANT LEAK CHECK

M1141001000388

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 mois-
ture from the places checked.

When the tester is taken out, be careful not to 
spill any coolant.

ACX01844 AB

Cap adapter

Adapter

Be careful when installing and removing the 
tester and when testing not to deform the 
filler neck of the radiator.

1. Check that the coolant level is up to the filler neck. 

Install a radiator tester and apply 160 kPa 
pressure, and then check for leakage from the 
radiator hose or connections.

2. If there is leakage, repair or replace the 

appropriate part.

RADIATOR CAP PRESSURE CHECK

M1141001300453

NOTE: Be sure that the cap is clean before testing. 
Rust or other foreign material on the cap seal will 
cause an improper reading.

AC211643 AB

Cap adapter

1. Use a cap adapter to attach the cap to the tester.
2. Increase the pressure until the indicator of the 

gauge stops moving.

Minimum limit: 83 kPa
Standard value: 93 

 123 kPa

3. Replace the radiator cap if the reading does not 

remain at or above the minimum limit.

ENGINE COOLANT REPLACEMENT

M1141001200553

1. Remove the under cover (Refer to GROUP 51, 

Front Bumper 

P.51-2

).

WARNING

When removing the radiator cap, use care to 
avoid contact with hot coolant or steam. 
Place a shop towel over the cap and turn the 
cap anti-clockwise a little to let the pressure 
escape through the vinyl tube. After relieving 
the steam pressure, remove the cap by 
slowly turning it anti-clockwise.

2. Drain the water from the radiator, heater core and 

engine after unplugging the radiator drain plug 
and removing the radiator cap.

AC210639AB

44 ± 5 N·m

Water inlet pipe

3. Drain the water in the water jacket by unplugging 

the drain plug of the cylinder block.

4. Remove the reserve tank and drain the coolant.
5. Drain the cooling water then clean the path of the 

cooling water by injecting water into the radiator 
from the radiator cap area.

Summary of Contents for Lancer Evolution IX 2006

Page 1: ...AP PRESSURE CHECK 14 15 ENGINE COOLANT REPLACEMENT 14 15 CONCENTRATION MEASUREMENT 14 16 FAN CONTROLLER CHECK 14 16 FAN CONTROL RELAY CONTINUITY CHECK 14 17 COOLING FAN MOTOR CHECK 14 17 THERMOSTAT 14...

Page 2: ...cool ing fan is controlled by the fan controller and engine ECU depend on driving conditions Item Specification Radiator Performance kJ h 216 700 SERVICE SPECIFICATIONS M1141000300483 Item Standard va...

Page 3: ...ng A Connector pin contact pressure inspection B Power circuit inspection C Power circuit inspection D Commercial tester connection MB992006 MB992006 Extra fine probe Making voltage and resistance mea...

Page 4: ...nge GR Grey R Red P Pink V Violet PU Purple INPUT SIGNAL A C SWITCH ENGINE COOLANT TEMPERATURE SENSOR VEHICLE SPEED SENSOR ENGINE ECU ENGINE CONTROL RELAY SMOOTHING CIRCUIT FIELD EFFECT TRANSISTOR CIR...

Page 5: ...ATURE DETECTION CURRENT DETECTION RADIATOR FAN MOTOR FAN CONTROLLER ENGINE CONTROL SYSTEM FUSIBLE LINK 2 FAN CONTROL RELAY AC505139 Cooling fan drive circuit R H drive vehicles AB TROUBLESHOOTING ENGI...

Page 6: ...itive voltage when the ignition switch is turned to the ON position YES Go to Step 7 NO Go to Step 2 STEP 2 Check the fan control relay Refer to P 14 17 Q Is the fan control relay in good condition YE...

Page 7: ...If intermediate connector A 13 LHD C 31 RHD and J C 6 C 105 are damaged repair or replace them Refer to GROUP 00 How to Use Troubleshooting Inspection Service Points P 00 5 AC310900AB Connector A 09X...

Page 8: ...h AC210859 Connector A 17 A 17 GR AD Fan controller Component side Q Are the harness wires between fan controller connector A 17 and earth damaged YES Repair or replace them then go to Step 13 NO Go t...

Page 9: ...vice Points P 00 5 AC505254 AC Connector C 121 LHD C 121 GR Engine ECU 15 29 2221 23 3534 7 8 16 18 19 17 20 31 32 33 30 5 6 11 10 12 13 14 26 2827 25 3 4 2 9 24 1 JAE Component side AC505255AC Connec...

Page 10: ...to Step 13 STEP 13 Check the symptoms Q Does the cooling fan operate correctly YES The procedure is complete NO Return to Step 1 INSPECTION PROCEDURE 2 Cooling fan does not change speed or does not st...

Page 11: ...e between fan control relay connector A 09X and fan controller connector A 17 damaged YES Repair or replace the part then go to Step 6 NO Go to Step 3 STEP 3 Measure the output circuit voltage at engi...

Page 12: ...1 9 2 4 27 13 26 11 3 12 2829 1415 3031 1718 33 32 6 20 5 19 21 35 34 8 23 7 22 JAE AB Connector C 121 RHD Harness side C 121 GR Engine ECU 1 Do not disconnect engine ECU connector C 121 2 Start the...

Page 13: ...rvice Points P 00 5 AC505254 AC Connector C 121 LHD C 121 GR Engine ECU 15 29 2221 23 3534 7 8 16 18 19 17 20 31 32 33 30 5 6 11 10 12 13 14 26 2827 25 3 4 2 9 24 1 JAE Component side AC505255AC Conne...

Page 14: ...Step 8 NO Go to Step 7 STEP 7 Check the fan controller at engine ECU connector C 121 AC505254 16 25 10 24 1 9 2 4 27 13 26 11 3 12 2829 1415 3031 1718 33 32 6 20 5 19 21 35 34 8 23 7 22 JAE AB Connec...

Page 15: ...AC211643 AB Cap adapter 1 Use a cap adapter to attach the cap to the tester 2 Increase the pressure until the indicator of the gauge stops moving Minimum limit 83 kPa Standard value 93 123 kPa 3 Repl...

Page 16: ...13 Remove the radiator cap after the engine has become cold and pour in coolant up to the brim Reinstall the cap CAUTION Do not overfill the reserve tank 14 Add coolant to the reserve tank between the...

Page 17: ...tage between the cooling fan motor connector terminals while the fan is running The voltage should repeat the values 1 and 2 below Standard value 1 8 2 2 6 V 2 Battery positive voltage 2 6 V 11 If the...

Page 18: ...val Operation Under Cover Removal Refer to GROUP 51 Front Bumper P 51 2 Engine Coolant Draining Refer to P 14 15 Intake Air Duct Removal Refer to GROUP 15 Air Cleaner P 15 5 Air Hose E Air Pipe C and...

Page 19: ...tting AB 1 Insert each hose as far as the projection of the water outlet fitting 2 Align the mating marks on the radiator hose and hose clamp and then connect the radiator hose INSPECTION M11410025004...

Page 20: ...fer to P 14 15 Timing Belt Tensioner Adjuster Removal Refer to GROUP 11A Timing Belt P 11A 36 Post installation Operation Timing Tensioner Adjuster Belt Installation Refer to GROUP 11A Timing Belt P 1...

Page 21: ...o not let the O ring get contaminated with grease or engine oil AC103005 Water pump O ring Water inlet pipe AC Fit an O ring into the O ring groove located at the end of the water inlet pipe and apply...

Page 22: ...GROUP 15 Air Cleaner P 15 5 Battery and Battery Tray Installation Engine Coolant Refilling Refer to P 14 15 Under Cover Installation Refer to GROUP 51 Front Bumper P 51 2 AC504959 11 1 N m 23 4 N m 10...

Page 23: ...pump for insertion B WATER INLET PIPE INSTALLATION Temporarily install the water inlet pipe After installing the water outlet fitting and thermostat case assembly tighten the mounting bolt of the wat...

Page 24: ...OUP 51 Front Bumper P 51 2 AC210706 3 5 0 4 N m 5 0 1 0 N m 5 0 1 0 N m 5 0 1 0 N m 12 2 N m 12 2 N m AC 5 4 0 5 N m 4 5 0 4 N m 1 19 18 17 16 15 14 13 12 10 9 8 7 6 5 11 4 3 2 22 20 21 N 11 12 2 N m...

Page 25: ...pipe B out of the way so that the pipe does not interfere with the radia tor assembly or the cooling fan motor the fan and shroud assembly INSTALLATION SERVICE POINT A RADIATOR LOWER HOSE RADIA TOR UP...

Page 26: ...NOTES...

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