Scheme 1
Scheme 2
- Remove the engine compartment covers (see «ENGINE COMPARTMENT COVER REPLACEMENT»(/acura/tl/iv-2011-2014/remont/exteriorinterior-trim/#exterior-trim__engine-compartment-cover-replacement) ).
- 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).
- Apply a pressure of 93- 123 kPa (0.95- 1.25 kgf/cm 2 , 13.5- 17.8 psi)
- Check for a drop in pressure.
- If the pressure drops, replace the radiator cap.
- Install the engine compartment covers (see «ENGINE COMPARTMENT COVER REPLACEMENT»(/acura/tl/iv-2011-2014/remont/exteriorinterior-trim/#exterior-trim__engine-compartment-cover-replacement) ).
Scheme 3
- Remove the engine compartment covers (see «ENGINE COMPARTMENT COVER REPLACEMENT»(/acura/tl/iv-2011-2014/remont/exteriorinterior-trim/#exterior-trim__engine-compartment-cover-replacement) ).
- 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.
- 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).
- Inspect for engine coolant leaks and a drop in pressure.
- Remove the tester, then reinstall the radiator cap.
- Install the engine compartment covers (see «ENGINE COMPARTMENT COVER REPLACEMENT»(/acura/tl/iv-2011-2014/remont/exteriorinterior-trim/#exterior-trim__engine-compartment-cover-replacement) ).
Scheme 4
- Remove the engine compartment covers (see «ENGINE COMPARTMENT COVER REPLACEMENT»(/acura/tl/iv-2011-2014/remont/exteriorinterior-trim/#exterior-trim__engine-compartment-cover-replacement) ).
- Disconnect the 2P connectors from the radiator fan motor (A) and the A/C condenser fan motor (B).
- Test each motor by connecting battery power to terminal No. 2 and ground to terminal No. 1.
- If either motor fails to run or does not run smoothly, replace it (see «FAN, FAN MOTOR, AND SHROUD REMOVAL AND INSTALLATION»(/acura/tl/iv-2011-2014/remont/cooling-fan/#engine-cooling-system) ).
- Install the engine compartment covers (see «ENGINE COMPARTMENT COVER REPLACEMENT»(/acura/tl/iv-2011-2014/remont/exteriorinterior-trim/#exterior-trim__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
- 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.
- 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.
- 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
- Remove the timing belt: J35Z6 engine (see «TIMING BELT REMOVAL»(/acura/tl/iv-2011-2014/remont/mechanical/#cylinder-head-j35z6) ) J37A4 engine (see «TIMING BELT REMOVAL»(/acura/tl/iv-2011-2014/remont/mechanical/#cylinder-head-j37a4) )
- 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 REPLACEMENT»(/acura/tl/iv-2011-2014/remont/cooling-fan/#engine-cooling-system) ). NOTE: When you check the water pump, you may see a small amount of "weeping" from the bleed holes (A). This is normal.
- Install the timing belt: J35Z6 engine (see «TIMING BELT INSTALLATION»(/acura/tl/iv-2011-2014/remont/mechanical/#cylinder-head-j35z6__timing-belt-installation) ) J37A4 engine (see «TIMING BELT INSTALLATION»(/acura/tl/iv-2011-2014/remont/mechanical/#cylinder-head-j37a4__timing-belt-installation) )
Scheme 7
- Drain the engine coolant (see «COOLANT CHECK»(/acura/tl/iv-2011-2014/remont/cooling-fan/#engine-cooling-system) ).
- Remove the timing belt: J35Z6 engine (see «TIMING BELT REMOVAL»(/acura/tl/iv-2011-2014/remont/mechanical/#cylinder-head-j35z6) ) J37A4 engine (see «TIMING BELT REMOVAL»(/acura/tl/iv-2011-2014/remont/mechanical/#cylinder-head-j37a4) )
- Remove the timing belt adjuster: J35Z6 engine (see «TIMING BELT ADJUSTER REPLACEMENT»(/acura/tl/iv-2011-2014/remont/mechanical/#cylinder-head-j35z6) ) J37A4 engine (see «TIMING BELT ADJUSTER REPLACEMENT»(/acura/tl/iv-2011-2014/remont/mechanical/#cylinder-head-j37a4) )
- Remove the five bolts securing the water pump (A), then remove the water pump.
- Inspect and clean the mating surface of the engine block.
- Install the water pump with a new O-ring (B).
- Clean up any spilled engine coolant.
- Install the timing belt adjuster: J35Z6 engine (see «TIMING BELT ADJUSTER REPLACEMENT»(/acura/tl/iv-2011-2014/remont/mechanical/#cylinder-head-j35z6) ) J37A4 engine (see «TIMING BELT ADJUSTER REPLACEMENT»(/acura/tl/iv-2011-2014/remont/mechanical/#cylinder-head-j37a4) )
- Install the timing belt: J35Z6 engine (see «TIMING BELT INSTALLATION»(/acura/tl/iv-2011-2014/remont/mechanical/#cylinder-head-j35z6__timing-belt-installation) ) J37A4 engine (see «TIMING BELT INSTALLATION»(/acura/tl/iv-2011-2014/remont/mechanical/#cylinder-head-j37a4__timing-belt-installation) )
- Refill the radiator with engine coolant, then bleed the air from the cooling system (see «COOLANT CHECK»(/acura/tl/iv-2011-2014/remont/cooling-fan/#engine-cooling-system) ).
Scheme 8
- Remove the engine compartment covers (see «ENGINE COMPARTMENT COVER REPLACEMENT»(/acura/tl/iv-2011-2014/remont/exteriorinterior-trim/#exterior-trim__engine-compartment-cover-replacement) ).
- Check the coolant level in the coolant reservoir. Make sure it is between the MAX mark (A) and the MIN mark (B).
- 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.
- 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.
- Install the engine compartment covers (see «ENGINE COMPARTMENT COVER REPLACEMENT»(/acura/tl/iv-2011-2014/remont/exteriorinterior-trim/#exterior-trim__engine-compartment-cover-replacement) ).
Scheme 9
Scheme 10
Scheme 11
Scheme 12
- Remove the engine compartment covers (see «ENGINE COMPARTMENT COVER REPLACEMENT»(/acura/tl/iv-2011-2014/remont/exteriorinterior-trim/#exterior-trim__engine-compartment-cover-replacement) ).
- Wait until the engine is cool, then carefully remove the radiator cap.
- Loosen the drain plug (A), and drain the coolant.
- Install a rubber hose (A) on the drain bolt (B) located at the rear of the engine block, then loosen the drain bolt.
- When the coolant stops draining, tighten the drain bolt. Remove the rubber hose.
- Tighten the radiator drain plug securely.
- Remove, drain, and reinstall the coolant reservoir.
- Fill the coolant reservoir to the MAX mark (A) with Acura Long Life Antifreeze/Coolant Type 2.
- 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 0.69 L (0.182 US gal)) At Coolant Change: 6.3 L (1.66 US gal) After Engine Overhaul: 8.3 L (2.19 US gal)
- Loosely install the radiator cap.
- Set the heater temperature control to maximum heat.
- Start the engine, and let it run until it warms up (the radiator fan comes on at least twice).
- Turn off the engine. Check the level in the radiator, and add the recommended coolant, if needed.
- Put the radiator cap on securely, then run the engine again, and check for leaks.
- Clean up any spilled engine coolant.
- Install the engine compartment covers (see «ENGINE COMPARTMENT COVER REPLACEMENT»(/acura/tl/iv-2011-2014/remont/exteriorinterior-trim/#exterior-trim__engine-compartment-cover-replacement) ).
- If the Maintenance Minder required replacing the engine coolant, reset the Maintenance Minder (see «RESETTING THE MAINTENANCE MINDER»(/acura/tl/iv-2011-2014/remont/schedule/#maintenance) ), and this procedure is complete. If the Maintenance Minder did not require engine coolant replacement, go to step 18.
- Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.
- Connect the HDS to the DLC (see «HOW TO USE THE HDS (HONDA DIAGNOSTIC SYSTEM)»(/acura/tl/iv-2011-2014/remont/testing-diagnostics/#fuel-and-emissions-systems__how-to-use-the-hds-honda) ).
- Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.
- Make sure the HDS communicates with the vehicle and the ECM/PCM. If it does not communicate, troubleshoot the DLC circuit (see «DLC CIRCUIT TROUBLESHOOTING»(/acura/tl/iv-2011-2014/remont/testing-diagnostics/#pgm-fi-system__dlc-circuit-troubleshooting) ).
- Select GAUGES in the BODY ELECTRICAL with the HDS.
- Select ADJUSTMENT in the GAUGES with the HDS.
- Select MAINTENANCE MINDER in the ADJUSTMENT with the HDS.
- Select RESET in the MAINTENANCE MINDER with the HDS.
- Select MAINTENANCE SUB ITEM 5 RESET with the HDS.
Scheme 13
Scheme 14
Scheme 15
- Remove the engine compartment covers (see «ENGINE COMPARTMENT COVER REPLACEMENT»(/acura/tl/iv-2011-2014/remont/exteriorinterior-trim/#exterior-trim__engine-compartment-cover-replacement) ).
- Drain the engine coolant (see «COOLANT CHECK»(/acura/tl/iv-2011-2014/remont/cooling-fan/#engine-cooling-system) ).
- Do the battery removal procedure (see «BATTERY REMOVAL AND INSTALLATION»(/acura/tl/iv-2011-2014/remont/body-electrical/#battery) ).
- A/T model: Remove harness clamps (A) and disconnect the positive starter cable (B).
- A/T model: Remove the bolt (A) and the harness holder (B).
- Remove the thermostat cover (A), then remove the thermostat (B).
- Install the new thermostat with a new rubber seal (C) in the reverse order of the removal.
- Do the battery installation procedure (see «BATTERY REMOVAL AND INSTALLATION»(/acura/tl/iv-2011-2014/remont/body-electrical/#battery) ).
- Refill the radiator with engine coolant, and bleed the air from the cooling system (see «COOLANT CHECK»(/acura/tl/iv-2011-2014/remont/cooling-fan/#engine-cooling-system) ).
- Clean up any spilled engine coolant.
- Install the engine compartment covers (see «ENGINE COMPARTMENT COVER REPLACEMENT»(/acura/tl/iv-2011-2014/remont/exteriorinterior-trim/#exterior-trim__engine-compartment-cover-replacement) ).
Scheme 16
Scheme 17
Scheme 18
- Remove the engine compartment covers (see «ENGINE COMPARTMENT COVER REPLACEMENT»(/acura/tl/iv-2011-2014/remont/exteriorinterior-trim/#exterior-trim__engine-compartment-cover-replacement) ).
- Drain the engine coolant (see «COOLANT CHECK»(/acura/tl/iv-2011-2014/remont/cooling-fan/#engine-cooling-system) ).
- Do the battery removal procedure (see «BATTERY REMOVAL AND INSTALLATION»(/acura/tl/iv-2011-2014/remont/body-electrical/#battery) ).
- Remove the intake manifold (see «REMOVAL»(/acura/tl/iv-2011-2014/remont/mechanical/#intake-manifold-and-exhaust-system) ).
- Disconnect the upper radiator hose (A), the lower radiator hose (B), the ECT sensor 1 connector (C), and the EGR valve connector (D).
- Disconnect the water bypass hose (A) and the heater hose(B).
- Remove the EGR pipe (see «EGR VALVE REPLACEMENT»(/acura/tl/iv-2011-2014/remont/auxiliary-emission-control-systems/#egr-system) ).
- Remove the water passage (A), then remove the EGR valve (B), the ECT sensor 1 (C), and the water bypass hose (D).
- Install the water passage with new gaskets (E) in the reverse order of the removal.
- Do the battery installation procedure (see «BATTERY REMOVAL AND INSTALLATION»(/acura/tl/iv-2011-2014/remont/body-electrical/#battery) ).
- Refill the radiator with engine coolant, and bleed the air from the cooling system (see «COOLANT CHECK»(/acura/tl/iv-2011-2014/remont/cooling-fan/#engine-cooling-system) ).
- Clean up any spilled engine coolant.
- Install the engine compartment covers (see «ENGINE COMPARTMENT COVER REPLACEMENT»(/acura/tl/iv-2011-2014/remont/exteriorinterior-trim/#exterior-trim__engine-compartment-cover-replacement) ).
Scheme 19
Scheme 20
Scheme 21
Scheme 22
Scheme 23
- Remove the engine compartment covers (see «ENGINE COMPARTMENT COVER REPLACEMENT»(/acura/tl/iv-2011-2014/remont/exteriorinterior-trim/#exterior-trim__engine-compartment-cover-replacement) ).
- Do the battery removal procedure (see «BATTERY REMOVAL AND INSTALLATION»(/acura/tl/iv-2011-2014/remont/body-electrical/#battery) ).
- Remove the battery base (see «BATTERY REMOVAL AND INSTALLATION»(/acura/tl/iv-2011-2014/remont/body-electrical/#battery) ).
- Remove the air intake duct splash separator (see «ENGINE REMOVAL»(/acura/tl/iv-2011-2014/remont/mechanical/#engine-assembly__engine-removal) ).
- Raise the vehicle on the lift.
- Remove the front splash shield (see «FRONT SPLASH SHIELD REPLACEMENT»(/acura/tl/iv-2011-2014/remont/exterior-body-panels/#fenderwell__front-splash-shield-replacement) ).
- Disconnect the A/C condenser fan motor connector (A), and remove the harness clamps (B).
- Loosen the A/C condenser fan shroud mounting bolts (C).
- A/T model: Remove the harness clamps (D).
- Disconnect the radiator fan motor connector (A), and remove the harness clamps (B).
- Lower the vehicle on the lift.
- Remove the coolant reservoir (A), then remove the A/C condenser fan shroud assembly (B).
- Remove the upper brackets (A). A
- 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.
- Disassemble the fan shrouds.
Scheme 24
Scheme 25
Scheme 26
Scheme 27
Scheme 28
- Assemble the fan shrouds.
- Install the radiator fan shroud assembly (A).
- Install the upper brackets (B).
- Install the A/C condenser fan shroud assembly (A), then install the coolant reservoir (B).
- Raise the vehicle on the lift.
- Connect the radiator fan motor connector (A), and install the harness clamps (B).
- A/T model: Install the harness clamp (A).
- Tighten the A/C condenser fan shroud mounting bolts (B).
- Connect the A/C condenser fan motor connector (C), and install the harness clamp (D).
- Install the front splash shield (see «FRONT SPLASH SHIELD REPLACEMENT»(/acura/tl/iv-2011-2014/remont/exterior-body-panels/#fenderwell__front-splash-shield-replacement) ).
- Lower the vehicle on the lift.
- Install the air intake duct splash separator (see «ENGINE INSTALLATION»(/acura/tl/iv-2011-2014/remont/mechanical/#engine-assembly__engine-installation) ).
- Install the battery base (see «BATTERY REMOVAL AND INSTALLATION»(/acura/tl/iv-2011-2014/remont/body-electrical/#battery) ).
- Do the battery installation procedure (see «BATTERY REMOVAL AND INSTALLATION»(/acura/tl/iv-2011-2014/remont/body-electrical/#battery) ).
- Install the engine compartment covers (see «ENGINE COMPARTMENT COVER REPLACEMENT»(/acura/tl/iv-2011-2014/remont/exteriorinterior-trim/#exterior-trim__engine-compartment-cover-replacement) ).
Scheme 29
Scheme 30
Scheme 31
Scheme 32
Scheme 33
- Remove the engine compartment covers (see «ENGINE COMPARTMENT COVER REPLACEMENT»(/acura/tl/iv-2011-2014/remont/exteriorinterior-trim/#exterior-trim__engine-compartment-cover-replacement) ).
- Drain the engine coolant (see «COOLANT CHECK»(/acura/tl/iv-2011-2014/remont/cooling-fan/#engine-cooling-system) ).
- Remove the air intake duct splash separator (see «ENGINE REMOVAL»(/acura/tl/iv-2011-2014/remont/mechanical/#engine-assembly__engine-removal) ).
- Raise the vehicle on the lift.
- Remove the front splash shield (see «FRONT SPLASH SHIELD REPLACEMENT»(/acura/tl/iv-2011-2014/remont/exterior-body-panels/#fenderwell__front-splash-shield-replacement) ).
- Disconnect the A/C condenser fan motor connector (A), and remove the harness clamp (B).
- Disconnect the radiator fan motor connector (A) and the ECT sensor 2 connector (B), then remove the harness clamps (C).
- Disconnect the lower radiator hose (A).
- A/T model: Remove the harness clamp (B). Disconnect the ATF cooler hoses (C) from the radiator, then plug the cooler hoses and the lines (see «ATF COOLER HOSE REPLACEMENT»(/acura/tl/iv-2011-2014/remont/automatic-trans/#automatic-transmission) ).
- Lower the vehicle on the lift.
- Disconnect the upper radiator hose (A) and remove the coolant reservoir (B).
- Remove the upper brackets (A), then pull up the radiator (B) with fan shrouds (C).
- Remove the fan shrouds and other parts from the radiator.
- Install the radiator in the reverse order of removal. Make sure the upper and lower cushions are set securely.
- A/T model: Refill the transmission with ATF (see «ATF REPLACEMENT»(/acura/tl/iv-2011-2014/remont/automatic-trans/#automatic-transmission__atf-replacement) ).
- Fill the radiator with engine coolant, and bleed the air from the cooling system (see «COOLANT CHECK»(/acura/tl/iv-2011-2014/remont/cooling-fan/#engine-cooling-system) ).
- Clean up any spilled engine coolant.
- Install the engine compartment covers (see «ENGINE COMPARTMENT COVER REPLACEMENT»(/acura/tl/iv-2011-2014/remont/exteriorinterior-trim/#exterior-trim__engine-compartment-cover-replacement) ).
See also:
• ENGINE COMPARTMENT COVER REPLACEMENT
• TIMING BELT REMOVAL
• TIMING BELT REMOVAL
• TIMING BELT INSTALLATION
• TIMING BELT INSTALLATION
• RESETTING THE MAINTENANCE MINDER
• HOW TO USE THE HDS (HONDA DIAGNOSTIC SYSTEM)
• DLC CIRCUIT TROUBLESHOOTING
• BATTERY REMOVAL AND INSTALLATION
• REMOVAL
• EGR VALVE REPLACEMENT
• ENGINE REMOVAL
• FRONT SPLASH SHIELD REPLACEMENT
• ENGINE INSTALLATION
• ATF COOLER HOSE REPLACEMENT
• ATF REPLACEMENT
• FAN, FAN MOTOR, AND SHROUD REMOVAL AND INSTALLATION