Changing Thermostat In Car

The thermostat should open at approximately 195 degrees in your Lexus. Unless an engine overheats or fails to reach normal operating temperature after being driven for several.

How To Replace A Vehicle Thermostat

Install the New Thermostat.

Changing thermostat in car. Most often than not though this part is located in close vicinity to the cars water pump on the cylinder head. If the thermostat doesnt sit flat its incorrectly installed. Get a New Thermostat.

This will enable you to locate the thermostat. Loosen the top hose clip then ease off the hose. 5 Remove the bolts that hold the thermostat housing in place and lift out the old thermostat.

In this video Ill show you how to change a car thermostat on a Jeep cherokee 40L I6 engine although all jeep straight six engines will be the same and many. Depending on the engine model this might be difficult for some people. Inspect your new thermostat to find the pointed valve on top and the spring on the bottom.

Use the Appropriate Tool. As we mentioned before automakers shy away from prescribing a set time or mileage to replace a thermostat. Feel the top radiator hose it will be cool to moderatly warm until the thermostat opens at which time the top and bottom hose at the radiator will both be warm.

This means the coolant is flowing continuously keeping the engine from reaching operating temperature. Place the new car thermostat in the recessed groove in either the engine or gooseneck air bleed toward the top. Compare the new thermostat and its gasket with the old ones.

Remove the Thermostat Housing. Put the thermostat in the engine flange so the valve points up. Remove the thermostat after disconnecting the thermostat housing from the engine.

Wait for the engine to cool. The deeper spring-side end goes into the engine while the shorter end sits in the housing. How to replace a faulty car thermostat.

Use the Appropriate Seal. In most cases the cause of an overheating or no-heat condition in your vehicle is a faulty thermostat. Hold it in place with a self-adhesive gasket.

Flushing the cooling system of your car can help remove the buildup and deposits that have formed overtime due to normal use of your vehicle. Lift the hood and ensure that it is secured so that there is no risk of it dropping and causing injury. This will confirm the continuously low temperature reading of the temperature gauge on your dashboard.

CARSCOM A car thermostat is responsible for preventing your engine from overheating. Clean the Mating Surfaces. The first step necessary to replace a car thermostat is to gain access to it.

Opportune Times To Replace A Thermostat. Then apply a bead of RTV sealant. While wearing a thick pair of gloves put a rag over the radiator cap.

Slide the thermostat into the port on your engine and push it in tightly. We tend to agree that thermostats normally last a long time and so replacing them too soon might not be the best use of your hard-earned car parts money. Place the thermostat into the engine.

With a normal top-mounted thermostat you need drain only part of the cooling system. The thermostat housing is the blocky metal piece connected to your engine block that the hose was attached to. If the new thermostat and the gasket thats included with it arent exactly like the old ones go back to the store for the right ones.

If both test points remain at about the same low temperature your car thermostat is stuck opened. Do not drain it while the engine is hot you may be scalded. Replacing a car thermostat includes the draining and refilling of your vehicles cooling system so you may also consider performing a cooling system flush while you are replacing the thermostat.

If there is a tab it goes through a slot in the thermostat flange. Make sure the thermostats ring fits perfectly in the port or else coolant will be able to leak through. Access to the Thermostat Housing.

A Systematic Approach to Car Thermostat Replacement. Therefore if the cooling system is already open for major repairs such as water pump or radiator replacement it is recommended to install a new thermostat simply as insurance against future breakdown. Use a socket wrench to loosen the bolts holding the housing in place and set them aside so you dont lose them.

All thermostats eventually fail. Partially drain the cooling system first.

Car Care How To Change A Thermostat Diy Family Handyman