Probably in a housing at the engine end of the upper radiator hose
sc300 Lexus is the same as Toyota Avalon or v6 sedan.open the hood locate your drive belts follow the lower radiator hose at the end right by the water pump inlet is the thermostat two10mmbolts need to come out .removed the alt-a/c belt for easy acces
It should be right beside the thermostat housing unit.
I'm not exactly sure on a '94. In a '91 it's like this... You open the hood, put your right hand down and there should be a big black hose coming out of the radiator right close to it. Follow the hose to where it connects to the engine. This shold be the thermostat housing. It's usually aluminum and has two or three bolts holding it in. Kinda bulbous looking. Try that and see what you find.
In replacing the power steering pump on a 1993 Toyota Camry wagon with V6 engine, make sure to replace the steering pressure hose and clamp also. The leaks on both the hose and the clamp are the cause of the broken power steering pump.
Thermostat housing
follow the coolant hose that goes under the distributor.
gap is 045.0
on the valve cover
On a Jeep Grand Cherokee v6, the thermostat is located in the thermostat housing. The housing can be easily located by following the upper radiator hose to it.
The thermostat on my 95 pathfinder v6 is located in the thermostat housing on the front of the engine. The lower radiator hose connects to the housing. .
where is the thermostat located on a 2003 toyota highlander
140 H.P.
if you have a 3.3l v6, then you follow the upper radiator hose to where it connects to the block. It's around the throttle. The place where the hose connects can be removed, and the thermostat is in there.
On the 2.5L V6 the thermostat is located under the housing where the lower raditor hose is hooked the the engine.
Where is the thermostat located at on a 2004 Chevy Malibu 3.5 liter V6
To find the Ford Escape V6 thermostat, located the top radiator hose. Trace the hose to the location where it meets the water pump. Inside the hose at this location is where the thermostat is located.
Two wire sensor under the ignition coil, next to the thermostat housing.