See if your rad is plugged
To change the thermostat in this Lexus model, follow the upper radiator hose to the aluminum housing--the thermostat is located in that housing.
replace upper radiator hose and install a new thermostat. see what happens. or turn it on without the thermostat for a while and see if it still overheats.
The Lexus GS 300 thermostat is located on the front of the engine. You can find the thermostat by following the radiator hose to the thermostat.
To change the thermostat on a 1996 Lexus ES300, first, ensure the engine is cool and disconnect the negative battery cable. Drain the coolant and remove the upper radiator hose connected to the thermostat housing. Unbolt the thermostat housing, replace the old thermostat with a new one (ensuring the gasket is in place), and reassemble the housing and hose. Finally, refill the coolant, reconnect the battery, and check for leaks.
The thermostat on a 2001 Lexus RX300 is replaced by removing the upper radiator hose and unbolting the thermostat housing. The thermostat can then be removed, a new gasket installed, and the replacement thermostat placed in the housing.
if you have a 3.0 you have to remove the windshield wiper water tank and the cooling tank and it will be right behind the alternator
On the 1994 Lexus 300es, the thermostat is located in the front of the engine. Look for a radiator hose just below the location of the water pump. The thermostat is inside the end of that hose.
1992 Lexus es300 wear the thermostat is located
You can find the thermostat on a 1995 Lexus GS300 near the radiator. To locate it, remove the upper hose assembly where it hooks to the radiator.
1992 Lexus es300 wear the thermostat is located
Air inside the engine.
The thermostat can be found on the front of the engine, near the bottom. A diagram of the thermostat can be obtained from most auto-parts stores.