Acura TSX / Honda Accord CL. Manual - part 395

Fig. 11: Pouring Coolant Into The Radiator Up To The Base Of The Filler Neck 

8. Install the radiator cap loosely.  

9. Start the engine, and let it run until it warms up (the radiator fan comes on at least twice).  

10. Turn off the engine. Check the level in the radiator and add Honda All Season Antifreeze/Coolant Type 2 

if needed.  

11. Put the radiator cap on tightly, then run the engine again and check for leaks.  

THERMOSTAT REPLACEMENT 

1. Drain the engine coolant (see COOLANT REPLACEMENT ). 

 

2004 Acura TSX 

2004 ENGINES Cooling System - TSX

  

 

2. Remove the splash shield (see step 18 of TRANSMISSION REMOVAL ).  

3. Remove the lower hose, then remove the thermostat. 

Fig. 12: Removing The Lower Hose & The Thermostat 

4. Install the thermostat with a new O-ring, then install the lower hose.  

5. Install the splash shield (see step 25 of TRANSMISSION REMOVAL ).  

6. Refill the radiator with engine coolant, and bleed air from the cooling system with the heater valve open 

(see COOLANT REPLACEMENT ).  

WATER PASSAGE REPLACEMENT 

1. Drain the engine coolant (see COOLANT REPLACEMENT ).  

2. Remove the alternator (see ALTERNATOR ).  

3. Remove the condenser fan shroud assembly (see CONDENSER REPLACEMENT ).  

4. Remove the splash shield (see step 18 of TRANSMISSION REMOVAL ).  

5. Remove the A/C compressor without disconnecting the A/C hoses (see step 22 of ENGINE 

REMOVAL ).  

 

2004 Acura TSX 

2004 ENGINES Cooling System - TSX

  

 

6. Remove the intake manifold (see REMOVAL ).  

7. Remove a bolt (A) securing the connecting pipe. 

Fig. 13: Removing Bolt Securing The Connecting Pipe 

8. Remove the lower hose (B), connecting pipe (C), water bypass hose (D), and positive crankcase 

ventilation (PCV) hose (E).  

9. Remove the water passage (A). 

 

2004 Acura TSX 

2004 ENGINES Cooling System - TSX

  

 

Fig. 14: Removing The Water Passage 

10. Remove the thermostat housing (B).  

11. Remove the water pump (see WATER PUMP REPLACEMENT ).  

12. Clean and dry the water passage mating surfaces.  

13. Apply liquid gasket, P/N 08718-0009, evenly to the cylinder block mating surface of the water passage 

and to the cylinder block mating surface of the water passage and to the inner threads of the bolt holes. 

NOTE:

Do not install the parts if 4 minutes or more have elapsed since applying 
liquid gasket. Instead, reapply liquid gasket after removing the old residue.

 

2004 Acura TSX 

2004 ENGINES Cooling System - TSX