Thermostat Removal


  1. REMOVE UPPER RADIATOR SUPPORT SEAL

  2. REMOVE FRONT BUMPER COVER LOWER

  3. REMOVE NO. 1 ENGINE UNDER COVER SUB-ASSEMBLY

  4. DRAIN ENGINE COOLANT

  5. REMOVE FAN AND GENERATOR V BELT

  6. DISCONNECT VANE PUMP ASSEMBLY

  7. DISCONNECT NO. 2 RADIATOR HOSE

  8. REMOVE WATER INLET

  9. REMOVE THERMOSTAT

Thermostat -- Removal



1. REMOVE UPPER RADIATOR SUPPORT SEAL

  1. Remove the 13 clips and upper radiator support seal.



2. REMOVE FRONT BUMPER COVER LOWER

  1. Remove the clip, 5 bolts and front bumper cover lower.



3. REMOVE NO. 1 ENGINE UNDER COVER SUB-ASSEMBLY


    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155

  1. Remove the 4 bolts.

  1. Unhook the No. 1 engine under cover sub-assembly from the vehicle body as shown in the illustration.



4. DRAIN ENGINE COOLANT


CAUTION:
Do not remove the radiator cap sub-assembly while the engine and radiator are still hot. Pressurized, hot engine coolant and steam may be released and cause serious burns.


Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.2Tr-Fe Cooling.Cooling System.Thermostat Removal


Text in Illustration
*1
Reservoir Cap
*2
Radiator Cap Sub-assembly
*3
Cylinder Block Drain Cock Plug
*4
Radiator Drain Cock Plug


    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.2Tr-Fe Cooling.Cooling System.Thermostat Removal

  1. Install a vinyl hose to the radiator side.

    Text in Illustration
    *a
    		Vinyl Hose


    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.2Tr-Fe Cooling.Cooling System.Thermostat Removal

  1. Install a vinyl hose to the engine side.

    Text in Illustration
    *a
    		Vinyl Hose

  1. Loosen the radiator drain cock plug.

  1. Remove the radiator cap sub-assembly and drain the coolant.

    HINT:
    Collect the coolant in a container and dispose of it according to the regulations in your area.

  1. Loosen the cylinder block drain cock plug and drain the coolant from the engine.



5. REMOVE FAN AND GENERATOR V BELT


    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155

  1. Use the hexagonal part indicated by the arrow in the illustration to move the tensioner pulley downward and decrease the tension in the fan and generator V belt. Then remove the fan and generator V belt.

    NOTICE:
    When removing the fan and generator V belt, do not use the bolt of the idle pulley.
    HINT:
    After removing the fan and generator V belt, move the tensioner upward to the maximum amount.


6. DISCONNECT VANE PUMP ASSEMBLY


    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155

  1. Remove the bolt and disconnect the pressure feed tube.



    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155

  1. Disconnect the 2 connectors.

  1. Remove the 2 bolts and disconnect the vane pump assembly.

    HINT:
    It is not necessary to completely remove the vane pump assembly. With the hoses connected to the vane pump assembly, hang the vane pump assembly on the vehicle body with a rope.


7. DISCONNECT NO. 2 RADIATOR HOSE


    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155

  1. Slide the hose clamp and disconnect the No. 2 radiator hose from the water inlet.



8. REMOVE WATER INLET


    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155

  1. Remove the bolt and 2 nuts, and then remove the water inlet.

  1. Remove the gasket from the timing chain cover sub-assembly.



9. REMOVE THERMOSTAT


    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155

  1. Remove the thermostat from the timing chain cover sub-assembly.

  1. Remove the gasket from the thermostat.