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Section 26 (Thermostat): Installation

WARNING: This page is about a different car, the 2001 Lexus ES 300. However, it is still accessible from the selected car via links, so may be relevant.
  1. Place thermostat in water pump. 
    1. Install a new gasket on to the thermostat.
    2. Align the thermostat jiggle valve with the upper stud bolt, and insert the thermostat in the water inlet housing.
    NOTE: The jiggle valve may be set within 15° of either side of the prescribed position.
    Fig 1: Installing Thermostat Valve
    G03138792Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. Install water inlet.  Install the water inlet with the 3 nuts.
    1. Torque:  8 N.m (80 kgf.cm, 69 in. lbf)
  3. Install water inlet pipe. 
    1. Install a new O-ring to the water inlet pipe.
    2. Apply soapy water to the O-ring.
    3. Connect the water inlet pipe to the water inlet.
    4. Install the bolt holding the water inlet pipe to the LH cylinder head.
      1. Torque:  19.5 N.m (200 kgf.cm, 14 ft.lbf)
  4. Install engine wire protector. 
  5. Connect No. 2 ECT switch connector. 
  6. Connect heater hoses. 
  7. Reinstall air cleaner hose with resonator. 
  8. Install V-bank cover. 
    1. Using 5 mm hexagon wrench, install the V-bank cover with the 3 cap nuts.
    2. Press down the V-bank cover fastener.
  9. Fill with engine coolant. 
  10. Start engine and check for leaks. 
  11. Recheck engine coolant level. 
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