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Section 26 (Thermostat): Removal

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.
CAUTION: Removal of the thermostat would have an adverse effect, causing a lowering of cooling efficiency. Do not remove the thermostat, even if the engine tends to overheat.
  1. Drain engine coolant. 
    Fig 1: Removing V-Bank Cover
    G03138785Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. Remove V-bank cover. 
    1. Using a 5 mm hexagon wrench, remove the 3 cap nuts.
    2. Loosen the V-bank cover fastener counterclockwise.
    3. Remove the V-bank cover.
  3. Warm up engine.  Allow the engine to warm up to normal operating temperature.
  4. Remove air cleaner hose with resonator. 
  5. Disconnect heater hoses. 
  6. Disconnect No. 2 ECT switch connector. 
    Fig 2: Locating No. 2 ECT Switch Connector & Engine Wire Protector
    G03138786Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  7. Disconnect engine wire protector from water inlet & RH cylinder head.  Remove the nut and disconnect the clamp, and disconnect the engine wire protector from the water inlet and cylinder head.
    Fig 3: Disconnecting Water Inlet Pipe
    G03138787Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  8. Disconnect water inlet pipe from water inlet and LH cylinder head. 
    1. Remove the bolt, and disconnect the inlet pipe from the water inlet.
    2. Remove the O-ring from the inlet pipe.
  9. Remove water inlet and thermostat. 
    1. Remove the 3 nuts, water inlet and thermostat.
    2. Remove the gasket from the thermostat.
    10. Fig 4: Removing Water Inlet & Thermostat
    G03138788Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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