Toyota 4Runner 2001-06

Removal & Installation

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1GR-FE Engine



  1. Drain the cooling system.
  2.  
  3. Remove the engine appearance cover.
  4.  
  5. Disconnect the radiator outlet hose from the water inlet.
  6.  
  7. Remove the mounting nuts and water inlet with thermostat and gasket.
  8.  

To install:

  1. Install a new gasket to the water inlet with the thermostat.
  2.  
  3. Install the water inlet and tighten the mounting nuts to 80 inch lbs. (9 Nm).
  4.  
  5. Connect the radiator outlet hose.
  6.  
  7. Install the engine appearance cover.
  8.  
  9. Refill the cooling system to the correct level.
  10.  
  11. Start the engine and check for leaks.
  12.  

2uz-FE Engine



  1. Drain the cooling system.
  2.  
  3. Remove the mounting nuts and separate the water inlet from the water inlet housing.
  4.  
  5. Remove the thermostat.
  6.  

To install:

  1. Install a new gasket to the thermostat.
  2.  
  3. Insert the thermostat into the water inlet housing with the jiggle valve (brass button) facing upward.
  4.  
  5. Install the water inlet mounting nuts and tighten to t14 ft. lbs. (19 Nm).
  6.  
  7. Refill the cooling system to the correct level.
  8.  
  9. Start the engine and check for leaks.
  10.  

5vz-FE Engine



  1. Drain the cooling system.
  2.  
  3. Disconnect the lower radiator hose.
  4.  
  5. Remove the three nuts, wire clamp, water inlet and thermostat with the gasket from the water pump.
  6.  

To install:

  1. Place a new gasket to the thermostat. Install the thermostat with the jiggle valve (brass button) downward. Install the water inlet and tighten the three nuts to 14 ft. lbs. (20 Nm).
  2.  
  3. Connect the lower radiator hose.
  4.  
  5. Refill the cooling system to the correct level.
  6.  
  7. Start the engine and check for leaks.
  8.  

 
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