Question about 1995 Lexus ES 300

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How to remove the thermostat from my ES300 1995

How do I remove the thermostat from my ES300 1995. How many screws need to be removed. How do I remove the thermostat housing. Step by Step would be great with pictures even better.

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There are two bolts holding the thermostat housing. the housing is connected to the upper rad hose at the engine. you may need to move some items out of the way to get to the housing bolts.

Posted on Oct 03, 2009

Testimonial: "The 1995 Lexus ES300 thermostat removal had 3 nuts to be removed. You said two, I could not get it off and then I discovered a 3rd nut. Thanks!"

  • lexbev Oct 05, 2009

    sorry about that third nut, been a while since i changed one of those. im glad you found it.

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1. Drain the coolant by opening the drain cock or removing the lower radiator hose. Remove the lid to speed up process

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3. Remove the bypass hose and the pressure pipe between the Intercooler and the throttle body on turbo cars

4. Rempve the screw that holds the coolant pipe to the water pump

5. Remove the screw that holds the coolant pipe in the front left of the engine

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1) First buy a new thermostat for you car year and model.
2) Then as per the procedure. Remove the radiator cap. Be careful that there will be pressure in the radiator. So just let the pressure release first before removing the cap completely.
3) The thermostat is connected to the black hose coming from radiator.
4) On the top of the engine there will be thermostat cover. The cover is fitted by two bolts on each side.
5) Then remove the hose connected to radio with the help of a pier.
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7) Remove the screws holding the thermostat cover. Lift the cover after the screws are takes out. Then take the thermostat seated under the cover.
8) Remove the old gasket out from the thermostat with the help of knife.
9) Before removing the old thermostat carefully notice the position of old thermostat. In the same way place the new thermostat with the spring assembly in the down side of the engine.
10) Refit all the parts removed while removing the old thermostat properly.
11)After every thing is fitted proper as it was before, then check the coolant level if its low get it refilled till the required level.
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How to Change Thermostat in Amc Eagle car?


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2) Then as per the procedure. Remove the radiator cap. Be careful that there will be pressure in the radiator. So just let the pressure release first before removing the cap completely.
3) The thermostat is connected to the black hose coming from radiator.
4) On the top of the engine there will be thermostat cover. The cover is fitted by two bolts on each side.
5) Then remove the hose connected to radio with the help of a pier.
6) The other end of the hose is connected at thermostat cover. Carefully remove the other end of the hose. A bit of coolant will flow from the hose while removing the hose.
7) Remove the screws holding the thermostat cover. Lift the cover after the screws are takes out. Then take the thermostat seated under the cover.
8) Remove the old gasket out from the thermostat with the help of knife.
9) Before removing the old thermostat carefully notice the position of old thermostat. In the same way place the new thermostat with the spring assembly in the down side of the engine.
10) Refit all the parts removed while removing the old thermostat properly.
11)After every thing is fitted proper as it was before, then check the coolant level if its low get it refilled till the required level.
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1. Drain the coolant by opening the drain cock or removing the lower radiator hose. Remove the lid to speed up process

2. Remove the throttle body ccover on turbo cars

3. Remove the bypass hose and the pressure pipe between the Intercooler and the throttle body on turbo cars

4. Rempve the screw that holds the coolant pipe to the water pump

5. Remove the screw that holds the coolant pipe in the front left of the engine

6. Remove the hose to the throttle body pre-heater

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8. Refit in Reverse

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2) Then as per the procedure. Remove the radiator cap. Be careful that there will be pressure in the radiator. So just let the pressure release first before removing the cap completely.
3) The thermostat is connected to the black hose coming from radiator.
4) On the top of the engine there will be thermostat cover. The cover is fitted by two bolts on each side.
5) Then remove the hose connected to radio with the help of a pier.
6) The other end of the hose is connected at thermostat cover. Carefully remove the other end of the hose. A bit of coolant will flow from the hose while removing the hose.
7) Remove the screws holding the thermostat cover. Lift the cover after the screws are takes out. Then take the thermostat seated under the cover.
8) Remove the old gasket out from the thermostat with the help of knife.
9) Before removing the old thermostat carefully notice the position of old thermostat. In the same way place the new thermostat with the spring assembly in the down side of the engine.
10) Refit all the parts removed while removing the old thermostat properly.
11)After every thing is fitted proper as it was before, then check the coolant level if its low get it refilled till the required level.
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c32b253.jpg


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02daadd.jpg

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Jack up the car.
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Drain the coolant.
Lower the car.
Loosen oil reservoir for servo pump.
Remove coolant reservoir and put it to one side.
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Tighten screw on wire channel.
Connect the connector.
Install outer/upper timing-gear casing.
Install coolant reservoir.
Install oil reservoir for servo pump.
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Warm the engine until the thermostat opens.
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Install in reverse order.
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Check for leaks.
Check in VADIS vehicle communication (read-out of parameter values), for current engine system, that the engine temperature shown appears
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