Home ReviewsRefund
Home/Acura/TSX/Acura TSX II (2008-2014)/Repair manual/Cooling Fan/Engine Cooling System (v6)
Contents Wiring diagrams Section: Cooling Fan All sections

Engine Cooling System (v6) Acura TSX II

Cooling Fan 32 illustrations ~2039 words

Scheme 1

Scheme 1: Component Location Index
Scheme 1: Component Location Index

Scheme 2

Scheme 2: Radiator Cap Test
Scheme 2: Radiator Cap Test
  1. Remove the engine compartment covers (see «ENGINE COMPARTMENT COVER REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/exteriorinterior-trim/#exterior-trim-v6__engine-compartment-cover-replacement) ).
  2. Wait until the engine is cool, then carefully remove the radiator cap (A). Wet the radiator cap seal with engine coolant, then install it on a commercially available pressure tester (B).
  3. Apply a pressure of 93-123 kPa (0.95-1.25 kgf/cm 2 , 13.5-17.8 psi).
  4. Check for a drop in pressure.
  5. If the pressure drops, replace the radiator cap.
  6. Install the engine compartment covers (see «ENGINE COMPARTMENT COVER REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/exteriorinterior-trim/#exterior-trim-v6__engine-compartment-cover-replacement) ).

Scheme 3

Scheme 3: Radiator Test
Scheme 3: Radiator Test
  1. Remove the engine compartment covers (see «ENGINE COMPARTMENT COVER REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/exteriorinterior-trim/#exterior-trim-v6__engine-compartment-cover-replacement) ).
  2. Wait until the engine is cool, then carefully remove the radiator cap, and fill the radiator with engine coolant to the base of the filler neck.
  3. Attach a commercially available pressure tester (A) to the radiator, and apply a pressure of 93-123 kPa (0.95-1.25 kgf/cm 2 , 13.5-17.8 psi).
  4. Inspect for engine coolant leaks and a drop in pressure.
  5. Remove the tester, then reinstall the radiator cap.
  6. Install the engine compartment covers (see «ENGINE COMPARTMENT COVER REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/exteriorinterior-trim/#exterior-trim-v6__engine-compartment-cover-replacement) ).

Scheme 4

Scheme 4: Fan Motor Test
Scheme 4: Fan Motor Test
  1. Remove the engine compartment covers (see «ENGINE COMPARTMENT COVER REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/exteriorinterior-trim/#exterior-trim-v6__engine-compartment-cover-replacement) ).
  2. Disconnect the 2P connectors from the radiator fan motor (A) and the A/C condenser fan motor (B).
  3. Test each motor by connecting battery power to terminal No. 2 and ground to terminal No. 1.
  4. If either motor fails to run or does not run smoothly, replace it (see «FAN, FAN MOTOR, AND SHROUD REMOVAL AND INSTALLATION»(/acura/tsx/ii-2008-2014/remont/cooling-fan/#engine-cooling-system-v6) ).
  5. Install the engine compartment covers (see «ENGINE COMPARTMENT COVER REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/exteriorinterior-trim/#exterior-trim-v6__engine-compartment-cover-replacement) ).

Thermostat Test

Replace the thermostat if it is stuck in the open position at room temperature.

To test a closed thermostat

Scheme 5

Scheme 5: Thermostat Test
Scheme 5: Thermostat Test
  1. Suspend the thermostat (A) in a container of water. Do not let the thermostat and the thermometer (B) touch the bottom of the hot container.
  2. Heat the water and check the temperature with a thermometer. Check the temperature at which the thermostat first opens, and at which it is fully open.
  3. Measure the lift height of the thermostat when it is fully open. Standard Thermostat Lift Height: Above 10.0 mm (0.394 in) Starts Opening: 169-176°F (76-80°C) Fully Open: 194°F (90°C)

Scheme 6

Scheme 6: Water Pump Inspection
Scheme 6: Water Pump Inspection
  1. Remove the timing belt (see «TIMING BELT REMOVAL»(/acura/tsx/ii-2008-2014/remont/mechanical/#cylinder-head-v6) ).
  2. Turn the water pump pulley counterclockwise, and check that it turns freely. If it does not turn freely, replace the water pump (see «WATER PUMP INSPECTION»(/acura/tsx/ii-2008-2014/remont/cooling-fan/#engine-cooling-system-v6) ). NOTE: When you check the water pump, you may see a small amount of "weeping" from the bleed holes (A). This is normal.
  3. Install the timing belt (see «TIMING BELT INSTALLATION»(/acura/tsx/ii-2008-2014/remont/mechanical/#cylinder-head-v6__timing-belt-installation) ).

Scheme 7

Scheme 7: Water Pump Replacement
Scheme 7: Water Pump Replacement
  1. Drain the engine coolant (see «COOLANT CHECK»(/acura/tsx/ii-2008-2014/remont/cooling-fan/#engine-cooling-system-v6) ).
  2. Remove the timing belt (see «TIMING BELT REMOVAL»(/acura/tsx/ii-2008-2014/remont/mechanical/#cylinder-head-v6) ).
  3. Remove the timing belt adjuster (see «TIMING BELT ADJUSTER REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/mechanical/#cylinder-head-v6) ).
  4. Remove the five bolts securing the water pump (A), then remove the water pump.
  5. Inspect and clean the mating surface of the engine block.
  6. Install the water pump with a new O-ring (B).
  7. Clean up any spilled engine coolant.
  8. Install the timing belt adjuster (see «TIMING BELT ADJUSTER REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/mechanical/#cylinder-head-v6) ).
  9. Install the timing belt (see «TIMING BELT INSTALLATION»(/acura/tsx/ii-2008-2014/remont/mechanical/#cylinder-head-v6__timing-belt-installation) ).
  10. Refill the radiator with engine coolant, and bleed the air from the cooling system (see «COOLANT CHECK»(/acura/tsx/ii-2008-2014/remont/cooling-fan/#engine-cooling-system-v6) ).

Scheme 8

Scheme 8: Coolant Check
Scheme 8: Coolant Check
  1. Remove the engine compartment covers (see «ENGINE COMPARTMENT COVER REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/exteriorinterior-trim/#exterior-trim-v6__engine-compartment-cover-replacement) ).
  2. Check the coolant level in the coolant reservoir. Make sure it is between the MAX mark (A) and the MIN mark (B).
  3. If the coolant level in the coolant reservoir is at or below the MIN mark, add coolant to bring it between the MIN and MAX marks, then inspect the cooling system for leaks.
  4. Check the coolant level in the radiator, and add Acura Long Life Antifreeze/Coolant Type 2 into the radiator up to the base of the filler neck, if needed: NOTE: Always use Acura Long Life Antifreeze/Coolant Type 2. Using a non-Acura coolant can result in corrosion, causing the cooling system to malfunction or fail. Acura Long Life Antifreeze/Coolant Type 2 is a mixture of 50 % antifreeze and 50 % water. Do not add water.
  5. Install the engine compartment covers (see «ENGINE COMPARTMENT COVER REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/exteriorinterior-trim/#exterior-trim-v6__engine-compartment-cover-replacement) ).

Scheme 9

Scheme 9: Coolant Replacement
Scheme 9: Coolant Replacement

Scheme 10

Scheme 10
Scheme 10

Scheme 11

Scheme 11
Scheme 11

Scheme 12

Scheme 12
Scheme 12
  1. Remove the engine compartment covers (see «ENGINE COMPARTMENT COVER REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/exteriorinterior-trim/#exterior-trim-v6__engine-compartment-cover-replacement) ).
  2. Wait until the engine is cool, then carefully remove the radiator cap.
  3. Loosen the drain plug (A), and drain the coolant.
  4. Install a rubber hose (A) on the drain bolt (B) located at the rear of the engine block, then loosen the drain bolt.
  5. When the coolant stops draining, tighten the drain bolt. Remove the rubber hose.
  6. Tighten the radiator drain plug securely.
  7. Remove, drain, and reinstall the coolant reservoir.
  8. Fill the coolant reservoir to the MAX mark (A) with Acura Long Life Antifreeze/Coolant Type 2.
  9. Pour Acura Long Life Antifreeze/Coolant Type 2 into the radiator up to the base of the filler neck. NOTE: Always use Acura Long Life Antifreeze/Coolant Type 2. Using a non-Acura coolant can result in corrosion, causing the cooling system to malfunction or fail. Acura Long Life Antifreeze/Coolant Type 2 is a mixture of 50 % antifreeze and 50 % water. Do not add water. Engine Coolant Refill Capacities (Including the coolant reservoir capacity of 0.74 L (0.195 US gal)) At Coolant Change: 6.7 L (1.77 US gal) After Engine Overhaul: 8.7 L (2.30 US gal)
  10. Loosely install the radiator cap.
  11. Start the engine, and let it run until it warms up (the radiator fan comes on at least twice).
  12. Turn off the engine. Check the level in the radiator, and add the recommended coolant, if needed.
  13. Put the radiator cap on securely, then run the engine again, and check for leaks.
  14. Clean up any spilled engine coolant.
  15. Inspect for engine coolant leaks.
  16. Install the engine compartment covers (see «ENGINE COMPARTMENT COVER REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/exteriorinterior-trim/#exterior-trim-v6__engine-compartment-cover-replacement) ).
  17. If the Maintenance Minder required replacing the engine coolant, reset the Maintenance Minder (see «MAINTENANCE MINDER™»(/acura/tsx/ii-2008-2014/remont/reset-procedures/#maintenance-v6) ), and this procedure is complete. If the Maintenance Minder did not require engine coolant replacement, go to step 18 .
  18. Turn the ignition switch to LOCK (0).
  19. Connect the HDS to the DLC (see «GENERAL TROUBLESHOOTING INFORMATION»(/acura/tsx/ii-2008-2014/remont/testing-diagnostics/#fuel-and-emissions-systems-v6) ).
  20. Turn the ignition switch to ON (II).
  21. Make sure the HDS communicates with the vehicle and the PCM. If it does not communicate, troubleshoot the DLC circuit (see «DLC CIRCUIT TROUBLESHOOTING»(/acura/tsx/ii-2008-2014/remont/testing-diagnostics/#pgm-fi-system-v6__dlc-circuit-troubleshooting) ).
  22. Select GAUGES in the BODY ELECTRICAL with the HDS.
  23. Select ADJUSTMENT in the GAUGES with the HDS.
  24. Select MAINTENANCE MINDER in the ADJUSTMENT with the HDS.
  25. Select RESET in the MAINTENANCE MINDER with the HDS.
  26. Select MAINTENANCE SUB ITEM 5 RESET with the HDS.

Scheme 13

Scheme 13: Thermostat Replacement
Scheme 13: Thermostat Replacement

Scheme 14

Scheme 14
Scheme 14
  1. Remove the engine compartment covers (see «ENGINE COMPARTMENT COVER REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/exteriorinterior-trim/#exterior-trim-v6__engine-compartment-cover-replacement) ).
  2. Drain the engine coolant (see «COOLANT CHECK»(/acura/tsx/ii-2008-2014/remont/cooling-fan/#engine-cooling-system-v6) ).
  3. Do the battery removal procedure (see «RECONNECTION»(/acura/tsx/ii-2008-2014/remont/body-electrical/#battery-v6__reconnection) ).
  4. Remove harness clamps (A) and disconnect the positive starter cable (B).
  5. Disconnect the A/T clutch pressure control solenoid valve C connector (C), and remove the bolt (D) and the harness holder (E).
  6. Remove the thermostat cover (A), then remove the thermostat (B).
  7. Install the new thermostat with a new rubber seal (C) in the reverse order of the removal.
  8. Do the battery installation procedure (see «RECONNECTION»(/acura/tsx/ii-2008-2014/remont/body-electrical/#battery-v6__reconnection) ).
  9. Refill the radiator with engine coolant, and bleed the air from the cooling system (see «COOLANT CHECK»(/acura/tsx/ii-2008-2014/remont/cooling-fan/#engine-cooling-system-v6) ).
  10. Clean up any spilled engine coolant.
  11. Install the engine compartment covers (see «ENGINE COMPARTMENT COVER REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/exteriorinterior-trim/#exterior-trim-v6__engine-compartment-cover-replacement) ).

Scheme 15

Scheme 15: Water Passage Replacement
Scheme 15: Water Passage Replacement

Scheme 16

Scheme 16
Scheme 16

Scheme 17

Scheme 17
Scheme 17
  1. Remove the engine compartment covers (see «ENGINE COMPARTMENT COVER REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/exteriorinterior-trim/#exterior-trim-v6__engine-compartment-cover-replacement) ).
  2. Drain the engine coolant (see «COOLANT CHECK»(/acura/tsx/ii-2008-2014/remont/cooling-fan/#engine-cooling-system-v6) ).
  3. Do the battery removal procedure (see «RECONNECTION»(/acura/tsx/ii-2008-2014/remont/body-electrical/#battery-v6__reconnection) ).
  4. Remove the air cleaner (see «THROTTLE BODY CLEANING»(/acura/tsx/ii-2008-2014/remont/mechanical/#intake-air-system-v6__throttle-body-cleaning) ).
  5. Remove the intake manifold (see «REMOVAL»(/acura/tsx/ii-2008-2014/remont/exhaust/#intake-manifold-and-exhaust-system-v6) ).
  6. Disconnect the upper radiator hose (A), the lower radiator hose (B), the ECT sensor 1 connector (C), and the EGR valve connector (D).
  7. Disconnect the water bypass hose (A) and the heater hose (B).
  8. Remove the EGR pipe (see «EGR PIPE REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/auxiliary-emission-control-systems/#egr-system-v6) ).
  9. Remove the water passage (A), then remove the EGR valve (B), ECT sensor 1 (C), and the water bypass hose (D).
  10. Install the water passage with new gaskets (E) and new O-rings (F) in the reverse order of the removal.
  11. Do the battery installation procedure (see «RECONNECTION»(/acura/tsx/ii-2008-2014/remont/body-electrical/#battery-v6__reconnection) ).
  12. Refill the radiator with engine coolant, and bleed the air from the cooling system (see «COOLANT CHECK»(/acura/tsx/ii-2008-2014/remont/cooling-fan/#engine-cooling-system-v6) ).
  13. Clean up any spilled engine coolant.
  14. Install the engine compartment covers (see «ENGINE COMPARTMENT COVER REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/exteriorinterior-trim/#exterior-trim-v6__engine-compartment-cover-replacement) ).

Scheme 18

Scheme 18: Removal
Scheme 18: Removal

Scheme 19

Scheme 19
Scheme 19

Scheme 20

Scheme 20
Scheme 20

Scheme 21

Scheme 21
Scheme 21

Scheme 22

Scheme 22
Scheme 22
  1. Remove the engine compartment covers (see «ENGINE COMPARTMENT COVER REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/exteriorinterior-trim/#exterior-trim-v6__engine-compartment-cover-replacement) ).
  2. Do the battery removal procedure (see «RECONNECTION»(/acura/tsx/ii-2008-2014/remont/body-electrical/#battery-v6__reconnection) ).
  3. Remove the battery base (see «ENGINE REMOVAL»(/acura/tsx/ii-2008-2014/remont/mechanical/#engine-assembly-v6__engine-removal) ).
  4. Remove the intake air separator (see «ENGINE REMOVAL»(/acura/tsx/ii-2008-2014/remont/mechanical/#engine-assembly-v6__engine-removal) ).
  5. Remove the intake air duct (see «IMT ACTUATOR REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/mechanical/#intake-air-system-v6) ).
  6. Raise the vehicle on the lift.
  7. Remove the front splash shield (see «FRONT SPLASH SHIELD REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/exterior-body-panels/#fenderwell-v6__front-splash-shield-replacement) ).
  8. Disconnect the A/C condenser fan motor connector (A), and remove the harness clamp (B).
  9. Loosen the A/C condenser fan shroud mounting bolts (C).
  10. Disconnect the radiator fan motor connector (A).
  11. Lower the vehicle on the lift.
  12. Remove the A/C condenser fan shroud assembly (A).
  13. Remove the upper brackets (A).
  14. Remove the radiator fan shroud assembly (B). NOTE: Pull-up the radiator, then move the radiator fan shroud assembly toward the right side of the vehicle to allow for enough space to lift it up and away from the A/C condenser fan shroud assembly.
  15. Disassemble the fan shrouds.

Scheme 23

Scheme 23: Installation
Scheme 23: Installation

Scheme 24

Scheme 24
Scheme 24

Scheme 25

Scheme 25
Scheme 25

Scheme 26

Scheme 26
Scheme 26

Scheme 27

Scheme 27
Scheme 27
  1. Assemble the fan shrouds.
  2. Install the radiator fan shroud assembly (A).
  3. Install the upper brackets (B).
  4. Install the A/C condenser fan shroud assembly (A).
  5. Raise the vehicle on the lift.
  6. Connect the radiator fan motor connector (A).
  7. Tighten the A/C condenser fan shroud mounting bolts (A).
  8. Connect the A/C condenser fan motor connector (B), and install the harness clamp (C).
  9. Install the front splash shield (see «FRONT SPLASH SHIELD REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/exterior-body-panels/#fenderwell-v6__front-splash-shield-replacement) ).
  10. Lower the vehicle on the lift.
  11. Install the intake air duct (see «IMT ACTUATOR REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/mechanical/#intake-air-system-v6) ).
  12. Install the intake air separator (see «SIDE ENGINE MOUNT REMOVAL AND INSTALLATION»(/acura/tsx/ii-2008-2014/remont/mechanical/#engine-assembly-v6) ).
  13. Install the battery base (see «SIDE ENGINE MOUNT REMOVAL AND INSTALLATION»(/acura/tsx/ii-2008-2014/remont/mechanical/#engine-assembly-v6) ).
  14. Do the battery installation procedure (see «RECONNECTION»(/acura/tsx/ii-2008-2014/remont/body-electrical/#battery-v6__reconnection) ).
  15. Install the engine compartment covers (see «ENGINE COMPARTMENT COVER REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/exteriorinterior-trim/#exterior-trim-v6__engine-compartment-cover-replacement) ).

Scheme 28

Scheme 28: Radiator Replacement
Scheme 28: Radiator Replacement

Scheme 29

Scheme 29
Scheme 29

Scheme 30

Scheme 30
Scheme 30

Scheme 31

Scheme 31
Scheme 31

Scheme 32

Scheme 32
Scheme 32
  1. Remove the engine compartment covers (see «ENGINE COMPARTMENT COVER REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/exteriorinterior-trim/#exterior-trim-v6__engine-compartment-cover-replacement) ).
  2. Drain the engine coolant (see «COOLANT CHECK»(/acura/tsx/ii-2008-2014/remont/cooling-fan/#engine-cooling-system-v6) ).
  3. Remove the intake air separator (see «ENGINE REMOVAL»(/acura/tsx/ii-2008-2014/remont/mechanical/#engine-assembly-v6__engine-removal) ).
  4. Remove the intake air duct (see «IMT ACTUATOR REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/mechanical/#intake-air-system-v6) ).
  5. Raise the vehicle on the lift.
  6. Remove the front splash shield (see «FRONT SPLASH SHIELD REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/exterior-body-panels/#fenderwell-v6__front-splash-shield-replacement) ).
  7. Disconnect the A/C condenser fan motor connector (A), and remove the harness clamp (B).
  8. Loosen the A/C condenser fan shroud mounting bolts (C).
  9. Disconnect the radiator fan motor connector (A) and the ECT sensor 2 connector (B), then remove the harness clamp (C).
  10. Lower the vehicle on the lift.
  11. Disconnect the upper radiator hose (A), then remove the radiator fan shroud assembly (B) and the A/C condenser fan shroud assembly (C).
  12. Raise the vehicle on the lift.
  13. Disconnect the lower radiator hose (A).
  14. Disconnect the ATF cooler hoses (B) from the radiator (see «ATF COOLER HOSE REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/automatic-trans/#automatic-transmission-v6) ), then plug the ATF cooler hoses and the lines.
  15. Lower the vehicle on the lift.
  16. Remove the upper brackets (A), then pull up the radiator (B).
  17. Remove the other parts from the radiator.
  18. Install radiator in the reverse order of removal. Make sure the upper and lower cushions are set securely.
  19. Fill the radiator with engine coolant, and bleed the air from the cooling system (see «COOLANT CHECK»(/acura/tsx/ii-2008-2014/remont/cooling-fan/#engine-cooling-system-v6) ).
  20. Clean up any spilled engine coolant.
  21. Install the engine compartment covers (see «ENGINE COMPARTMENT COVER REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/exteriorinterior-trim/#exterior-trim-v6__engine-compartment-cover-replacement) ).

More articles — Engine