Toyota Tundra 2005 Service - Repair - Maintenance page 2037

COOLING (1GR−FE) − THERMOSTAT
THERMOSTAT
REMOVAL
HINT:
If the thermostat was not installed, cooling efficiency would be
harmed. If the engine should tend to overheat, do not remove
the thermostat.
1. DRAIN ENGINE COOLANT (See page CO−2)
2. REMOVE V−BANK COVER
3. DISCONNECT RADIATOR OUTLET, NO.2 HOSE
CLAMP OR CLIP
4. REMOVE WATER INLET W/THERMOSTAT
(a) Remove the 3 nuts, water inlet w/ thermostat and gasket.
A23122
CO−11
CO1DA−01