I have a 1993 lexus ES300 I am trying to change the thermostat because it%26#039;s overheating but I can%26#039;t find it. Does anyone knows where it might be, I will really appriciate it. Thanks|||Dear Lexus-
Don%26#039;t be took quick to judge the thermostat for your vehicle overheating. There could be some other issues that youmight consider looking at.
Unless you have had the car diagnosed, and know for certain that its the thermostat that is sticking closed that is causing the problem you need to check a few other things first.
Finding out WHY the car is overheating is necessary to solving the problem.
Here are a few things you can check on your own.
Is the car getting hot while the A/C is on and you are driving in town?
If Yes, then it could be a faulty temprature control switch for the Engine Cooling Fans or their motors have burned out.
Does the engine temprature return to normal ranges when you are driving on the highway? Then again the above answer would apply.
Have you checked the Coolant Level to be sure that it is properly filled?
Low Coolant Levels can cause overheating.
Have you checked the Radiator Cap since you purchased the vehicle, and has it ever been replaced?
This can cause over heating of the system cannot build the proper amount of pressure.
Are there any leaks from hoses or a water pump?
This contributes to low coolant levels and overheating.
Have you had the cooling system pressure tested and serviced? The pressure testing can locate internal leaks such as blown head gaskets, corroded freeze plugs and other things of this nature.
These can lead to overheating.
A partially blocked or leaking radiator?
Leaking Heater Core?
The reason I say this is because the weather is getting warmer now that Summer is here. I have been seeing the questions on this board being more and more frequent about Cooling system problems.
Here is What I would recommend that you do.
First have the cooling system pressure checked for any leaks. Then drain and flush the system, then have it refilled. Re-check for any leaks.
Have a complete diagnostic done on the Cooling System so if there are and electronic problems, they can be addressed and repaired.
I hope this helped you out.|||Follow the hoses back from the radiator. it will be the hose that connects higher than the other. Take off the hose and remove the peice that is bolted to the block the thermostat is in there....Good Luck|||follow the top rad .hose it will lead u to it,,,,,it will be on left side over the tranny|||Follow the top radiator hose to the engine. It stops at the thermostat housing There should be 2 to 3 bolts holding the housing to the engine. When replacing it make sure you put the thermostat in correctly.
The side with the big spring faces the engine if you get confused or forgot to look.|||Hi, if you will follow your top radiator hose to the motor the thermostat should be at the end where you will see two bolts where your radiator hose ends. the thermostat is under there
