2004 ISUZU TF SERIES coolant

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Page 2514 of 4264

ISUZU TF SERIES 2004  Workshop Manual 6B-4  ENGINE COOLING 
  
 Antifreeze Solution 
  Calculating mixing ratio 
Mixing ratio 
 
=  Antifreeze solution (Lit/gal.) 
Antifreeze solution (Lit/gal.) + Water (Lit/gal.) 
 
NOTE: Antifreeze sol

Page 2515 of 4264

ISUZU TF SERIES 2004  Workshop Manual ENGINE COOLING  6B-5 
Diagnosis 
Engine Cooling Trouble 
Condition Possible cause Correction 
Engine overheating  Low Engine Coolant level  Replenish 
  Thermo mater unit faulty  Replace 
 Faulty ther

Page 2516 of 4264

ISUZU TF SERIES 2004  Workshop Manual 6B-6  ENGINE COOLING 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Draining and Refilling Cooling 
System 
Before draining the cooling system, inspect the system and 
perform any necessary service to ensure tha

Page 2517 of 4264

ISUZU TF SERIES 2004  Workshop Manual ENGINE COOLING  6B-7 
Water Pump 
Water Pump and Associated Parts 
 
 
 
 
 
 
 
 
Legend 
1 Water Pump Assembly 2 O-Ring 
3 Bolt 
 
2  3 1
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Removal 
1.  Disconnect ba

Page 2519 of 4264

ISUZU TF SERIES 2004  Workshop Manual ENGINE COOLING  6B-9 
Thermostat 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Removal 
1.  Disconnect battery ground cable. 
2.  Drain engine coolant from the radiator and engine. 
3.  D

Page 2521 of 4264

ISUZU TF SERIES 2004  Workshop Manual ENGINE COOLING  6B-11 
Radiator 
Radiator and Associated Parts 
 
 
 
Legend 
1 Radiator Hose 
2 Drain Plug 
3 Fan Guide, Lower 
4 Fan Guide 
5 Bracket 6 Reserve Tank Hose 
7 Reserve Tank 
8 Radiator

Page 2522 of 4264

ISUZU TF SERIES 2004  Workshop Manual 6B-12  ENGINE COOLING 
 
 
Inspection 
Radiator Cap 
Measure the valve opening pressure of the pressurizing valve 
with a radiator filler cap tester. 
Replace the cap if the valve opening pressure is

Page 2523 of 4264

ISUZU TF SERIES 2004  Workshop Manual ENGINE COOLING  6B-13 
 
Installation 
1.  Install radiator assembly, taking care not to damage the
radiator core. 
2.  Install the radiator assembly. 
3.  Connect reserve tank hose. 
4.  Connect radi