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Cooling (Service Information): Overview Lexus GS III рестайлинг

Cooling Fan 26 illustrations ~1860 words

Scheme 1

Scheme 1: REPLACEMENT
Scheme 1: REPLACEMENT

Scheme 2

Scheme 2
Scheme 2
  1. REMOVE ENGINE UNDER COVER . Refer to «REMOVAL - Step 3»(ref-387098-S40753053842011022400000)
  2. REMOVE V-BANK COVER SUB-ASSEMBLY . Refer to «REMOVAL - Step 13»(ref-387075-S29773902432011022400000)
  3. REMOVE COOL AIR INTAKE DUCT SEAL . Refer to «REMOVAL - Step 10»(ref-387075-S29773902432011022400000)
  4. REMOVE NO. 1 AIR CLEANER INLET . Refer to «REMOVAL - Step 22»(ref-387075-S29773902432011022400000)
  5. DRAIN ENGINE COOLANT (for Engine) WARNING: Do not remove the radiator cap while the engine and radiator are still hot. Pressurized, hot engine coolant and steam may be released and cause serious burns. Remove the radiator cap and reservoir cap. Loosen the radiator drain cock plug and 2 cylinder block drain cock plugs. Then drain the coolant. HINT: Collect the coolant in a container and dispose of it according to the regulations in your area. Tighten all the plugs. Torque: 13 N*m ( 133 kgf*cm, 10 ft.*lbf) for cylinder block drain cock plug
  6. ADD ENGINE COOLANT (for Engine) NOTE: Before adding engine coolant, turn the A/C switch OFF. Add engine coolant. Specified capacity 9.3 liters (9.8 US qts, 8.1 Imp. qts) HINT: TOYOTA vehicles are filled with TOYOTA SLLC at the factory. In order to avoid damage to the engine cooling system and other technical problems, only use TOYOTA SLLC or similar high quality ethylene glycol based non-silicate, non-amine, non-nitrite, non-borate coolant with long-life hybrid organic acid technology (coolant with long-life hybrid organic acid technology consists of a combination of low phosphates and organic acids). Please contact your TOYOTA dealer for further details. The thermostat open timing can be confirmed by pressing the inlet radiator hose by hand, and checking when the engine coolant starts to flow inside the hose. Slowly pour coolant into the radiator reservoir until it reaches the FULL line. Install the reservoir cap. Press the inlet and outlet radiator hoses several times by hand, and then check the level is low, add coolant. If the coolant level is low, add coolant. Install the radiator cap. Bleed air from the cooling system. NOTE: Before starting the engine to warm up the engine, turn the A/C switch OFF. Warm up the engine until the thermostat opens. While the thermostat is open, circulate the coolant for several minutes. HINT: The thermostat open timing can be confirmed by pressing the inlet radiator hose by hand, and checking when the engine coolant starts to flow inside the hose. WARNING: When pressing the radiator hose: Wear protective gloves. Be careful as the radiator hose is hot. Keep your hands away from the radiator fan. HINT: Maintain the engine speed at 2,000 to 2,500 rpm. Stop the engine, and wait until the engine coolant cools down to ambient temperature. WARNING: Do not remove the radiator cap while the engine and radiator are still hot. Pressurized, hot engine coolant and steam may be released and cause serious burns. Check the coolant level in the radiator reservoir. If the coolant level is low, add SLLC to the radiator reservoir FULL line.
  7. INSPECT FOR COOLANT LEAK (for Engine) . Refer to «ON-VEHICLE INSPECTION - Step 1»(/lexus/gs/iii-2007-2011/remont/cooling-system-mechanical/#cooling-inspection)
  8. INSTALL NO. 1 AIR CLEANER INLET . Refer to «INSTALLATION - Step 67»(ref-387075-S37092368962011022400000)
  9. INSTALL COOL AIR INTAKE DUCT SEAL . Refer to «INSTALLATION - Step 100»(ref-387075-S37092368962011022400000)
  10. INSTALL V-BANK COVER SUB-ASSEMBLY . Refer to «INSTALLATION - Step 97»(ref-387075-S37092368962011022400000)
  11. INSTALL ENGINE UNDER COVER . Refer to «INSTALLATION - Step 7»(ref-387098-S17527170762011022400000)

Scheme 3

Scheme 3: ILLUSTRATION
Scheme 3: ILLUSTRATION

Scheme 4

Scheme 4: ILLUSTRATION
Scheme 4: ILLUSTRATION

Scheme 5

Scheme 5: ILLUSTRATION
Scheme 5: ILLUSTRATION

Scheme 6

Scheme 6: REMOVAL
Scheme 6: REMOVAL

Scheme 7

Scheme 7
Scheme 7

Scheme 8

Scheme 8
Scheme 8

Scheme 9

Scheme 9
Scheme 9

Scheme 10

Scheme 10
Scheme 10

Scheme 11

Scheme 11
Scheme 11

Scheme 12

Scheme 12
Scheme 12
  1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL WARNING: Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to prevent airbag and seat belt pretensioner activation.
  2. REMOVE ENGINE UNDER COVER . Refer to «REMOVAL - Step 3»(ref-387098-S40753053842011022400000)
  3. REMOVE COOL AIR INTAKE DUCT SEAL . Refer to «REMOVAL - Step 5»(ref-387086-S38986613362011022400000)
  4. REMOVE ENGINE ROOM SIDE COVER LH . Refer to «REMOVAL - Step 12»(ref-387075-S29773902432011022400000)
  5. REMOVE V-BANK COVER SUB-ASSEMBLY . Refer to «REMOVAL - Step 13»(ref-387075-S29773902432011022400000)
  6. REMOVE NO. 1 AIR CLEANER INLET . Refer to «REMOVAL - Step 22»(ref-387075-S29773902432011022400000)
  7. DRAIN ENGINE COOLANT (for Engine) See step 5
  8. DISCONNECT RADIATOR HOSE INLET
  9. DISCONNECT RADIATOR HOSE OUTLET
  10. REMOVE FAN AND GENERATOR V-RIBBED BELT . Refer to «REMOVAL - Step 3»(ref-387075-S12615702712011022400000)
  11. REMOVE NO. 2 ENGINE COVER Remove the 3 nuts and engine harness cover (LH bank side). Remove the 3 nuts and cover.
  12. REMOVE NO. 1 ENGINE COVER . Refer to «REMOVAL - Step 5»(ref-387088-S12055907872011022400000)
  13. REMOVE INJECTOR DRIVER . Refer to «REMOVAL - Step 6»(ref-387088-S12055907872011022400000)
  14. REMOVE WATER INLET Disconnect the 5 hoses. Remove the 4 bolts, nut and water inlet. Remove the water inlet housing gasket and water outlet pipe's O-ring.
  15. REMOVE COMPRESSOR WITH MOTOR ASSEMBLY . Refer to «REMOVAL - Step 9»(ref-387082-S16844897582011022400000)
  16. REMOVE V-RIBBED BELT TENSIONER ASSEMBLY . Refer to «REMOVAL - Step 66»(ref-387075-S29773902432011022400000)
  17. REMOVE WATER PUMP PULLEY Using SST, hold the water pump pulley. SST: 09960-10010 09962-01000 09963-00700 Remove the 4 bolts and water pump pulley.
  18. REMOVE WATER PUMP ASSEMBLY Remove the 16 bolts, water pump and gasket.

Scheme 13

Scheme 13: INSPECTION
Scheme 13: INSPECTION
  1. INSPECT WATER PUMP ASSEMBLY Visually check the water hole for coolant leakage. If leakage is found, replace the water pump assembly. Turn the pulley and check that the water pump bearing moves smoothly and quietly. If necessary, replace the water pump assembly.

Scheme 14

Scheme 14: INSTALLATION
Scheme 14: INSTALLATION

Scheme 15

Scheme 15
Scheme 15

Scheme 16

Scheme 16
Scheme 16
  1. INSTALL WATER PUMP ASSEMBLY Install a new gasket and the water pump with the 16 bolts. Torque: 21 N*m ( 214 kgf*cm, 15 ft.*lbf) for bolt A Torque: 9.1 N*m ( 93 kgf*cm, 81 in.*lbf) for bolt B and C NOTE: Be sure to replace the 2 bolts labeled C with new ones or reuse them after applying adhesive. Adhesive Toyota Genuine Adhesive 1344, Three Bond 1344 or Equivalent Make sure that there is no oil on the threads of bolt A.
  2. INSTALL WATER PUMP PULLEY Temporarily install the pulley with the 4 bolts. Using SST, hold the pulley and tighten the 4 bolts. SST: 09960-10010 09962-01000 09963-00700 Torque: 21 N*m ( 214 kgf*cm, 15 ft.*lbf)
  3. INSTALL WATER INLET Install a new gasket to the water inlet housing. Install a new O-ring to the water outlet pipe. NOTE: Be careful not to allow the O-ring to get caught between other parts. Install the water inlet with the 4 bolts and nut. Torque: 10 N*m ( 192 kgf*cm, 7 ft.*lbf) Connect the 5 hoses.
  4. INSTALL COMPRESSOR WITH MOTOR ASSEMBLY . Refer to «INSTALLATION - Step 2»(ref-387082-S37061646732011022400000)
  5. INSTALL V-RIBBED BELT TENSIONER ASSEMBLY . Refer to «INSTALLATION - Step 24»(ref-387075-S37092368962011022400000)
  6. INSTALL INJECTOR DRIVER . Refer to «INSTALLATION - Step 1»(ref-387088-S06341191472011022400000)
  7. INSTALL NO. 1 ENGINE COVER . Refer to «INSTALLATION - Step 2»(ref-387088-S06341191472011022400000)
  8. INSTALL NO. 2 ENGINE COVER Install the cover with the 3 nuts. Install the engine wire harness cover with the 3 nuts. Torque: 10 N*m ( 102 kgf*cm, 7 ft.*lbf)
  9. INSTALL FAN AND GENERATOR V-RIBBED BELT . Refer to «INSTALLATION - Step 1»(ref-387075-S34017349342011022400000)
  10. CONNECT RADIATOR HOSE OUTLET
  11. CONNECT RADIATOR HOSE INLET
  12. INSTALL NO. 1 AIR CLEANER INLET . Refer to «INSTALLATION - Step 67»(ref-387075-S37092368962011022400000)
  13. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL
  14. ADD ENGINE COOLANT (for Engine) See step 6
  15. INSPECT FOR COOLANT LEAK (for Engine) . Refer to «ON-VEHICLE INSPECTION - Step 1»(/lexus/gs/iii-2007-2011/remont/cooling-system-mechanical/#cooling-inspection)
  16. INSTALL V-BANK COVER SUB-ASSEMBLY . Refer to «INSTALLATION - Step 97»(ref-387075-S37092368962011022400000)
  17. INSTALL ENGINE ROOM SIDE COVER LH . Refer to «INSTALLATION - Step 99»(ref-387075-S37092368962011022400000)
  18. INSTALL COOL AIR INTAKE DUCT SEAL . Refer to «INSTALLATION - Step 34»(ref-387086-S41526753622011022400000)
  19. INSTALL ENGINE UNDER COVER . Refer to «INSTALLATION - Step 7»(ref-387098-S17527170762011022400000)
  20. PERFORM INITIALIZATION Perform initialization . Refer to «INITIALIZATION»(ref-386951-S21829001392011022400000) . NOTE: Certain systems need to be initialized after disconnecting and reconnecting the cable from the negative (-) battery terminal.

Scheme 17

Scheme 17: ILLUSTRATION
Scheme 17: ILLUSTRATION

Scheme 18

Scheme 18: ILLUSTRATION
Scheme 18: ILLUSTRATION

Scheme 19

Scheme 19: REMOVAL
Scheme 19: REMOVAL
  1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL WARNING: Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to prevent airbag and seat belt pretensioner activation.
  2. REMOVE ENGINE UNDER COVER . Refer to «REMOVAL - Step 3»(ref-387098-S40753053842011022400000)
  3. REMOVE COOL AIR INTAKE DUCT SEAL . Refer to «REMOVAL - Step 10»(ref-387075-S29773902432011022400000)
  4. REMOVE NO. 1 AIR CLEANER INLET . Refer to «REMOVAL - Step 22»(ref-387075-S29773902432011022400000)
  5. DRAIN ENGINE COOLANT (for Engine) See step 5
  6. REMOVE V-BANK COVER SUB-ASSEMBLY . Refer to «REMOVAL - Step 13»(ref-387075-S29773902432011022400000)
  7. DISCONNECT RADIATOR HOSE OUTLET
  8. REMOVE WATER INLET SUB-ASSEMBLY WITH THERMOSTAT Remove the 3 nuts, water inlet with thermostat and gasket.

Scheme 20

Scheme 20: INSPECTION
Scheme 20: INSPECTION

Scheme 21

Scheme 21
Scheme 21

Scheme 22

Scheme 22
Scheme 22
  1. INSPECT WATER INLET SUB-ASSEMBLY WITH THERMOSTAT HINT: The water inlet with thermostat is stamped with the valve opening temperature. Immerse the water inlet with thermostat in water and gradually heat the water. Check the valve opening temperature. Standard valve opening temperature 80 to 84°C (176 to 183°F) If the valve opening temperature is not within the specified range, replace the water inlet sub-assembly with thermostat. Check the valve lift. Standard valve lift 8.0 mm (0.315 in.) or more at 95°C (203°F) If the valve lift is not as specified, replace the water inlet sub-assembly with thermostat. Check that the valve is fully closed when the water inlet with thermostat is at low temperature (below 40°C (104°F)). If not close, replace the water inlet sub-assembly with thermostat.

Scheme 23

Scheme 23: INSTALLATION
Scheme 23: INSTALLATION
  1. INSTALL WATER INLET SUB-ASSEMBLY WITH THERMOSTAT Install a new gasket and the water inlet with thermostat with the 3 nuts. Torque: 10 N*m ( 102 kgf*cm, 7 ft.*lbf)
  2. CONNECT RADIATOR HOSE OUTLET
  3. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL
  4. ADD ENGINE COOLANT (for Engine) See step 6
  5. INSPECT FOR COOLANT LEAK (for Engine) . Refer to «ON-VEHICLE INSPECTION - Step 1»(/lexus/gs/iii-2007-2011/remont/cooling-system-mechanical/#cooling-inspection)
  6. INSTALL V-BANK COVER SUB-ASSEMBLY . Refer to «INSTALLATION - Step 97»(ref-387075-S37092368962011022400000)
  7. INSTALL NO. 1 AIR CLEANER INLET . Refer to «INSTALLATION - Step 67»(ref-387075-S37092368962011022400000)
  8. INSTALL COOL AIR INTAKE DUCT SEAL . Refer to «INSTALLATION - Step 100»(ref-387075-S37092368962011022400000)
  9. INSTALL ENGINE UNDER COVER . Refer to «INSTALLATION - Step 7»(ref-387098-S17527170762011022400000)
  10. PERFORM INITIALIZATION Perform initialization . Refer to «INITIALIZATION»(ref-386951-S21829001392011022400000) . NOTE: Certain systems need to be initialized after disconnecting and reconnecting the cable from the negative (-) battery terminal.

Scheme 24

Scheme 24: ILLUSTRATION
Scheme 24: ILLUSTRATION

Scheme 25

Scheme 25: ON-VEHICLE INSPECTION
Scheme 25: ON-VEHICLE INSPECTION

Scheme 26

Scheme 26
Scheme 26
  1. CHECK NO. 1 COOLING FAN MOTOR Disconnect the No. 1 fan motor connector. Connect the battery and an ammeter to the No. 1 fan motor connector. HINT: Be careful if the positive and negative terminals of the battery are mistakenly connected to the connector in reverse, as the motor will operate in the opposite direction. Check that the No. 1 fan rotates smoothly, and then check the reading on the ammeter. Standard current 5.6 to 11.6 A at 20°C (68°F) If the result is not as specified, replace the No. 1 cooling fan motor. Connect the No. 1 cooling fan motor connector.
  2. CHECK NO. 2 COOLING FAN MOTOR Disconnect the No. 2 fan motor connector. Connect the battery and an ammeter to the No. 2 fan motor connector. HINT: Be careful if the positive and negative terminals of the battery are mistakenly connected to the connector in reverse, as the motor will operate in the opposite direction. Check that the No. 2 fan rotates smoothly, and then check the reading on the ammeter. Standard current 5.6 to 11.6 A at 20°C (68°F) If the result is not as specified, replace the No. 2 cooling fan motor. Connect the No. 2 cooling fan motor connector.

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