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How do u know if the thermostat is working? - Montero Mitsubishi Cars & Trucks

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The best way to check a thermostat is to put it into a container of hot water with a thermometer and watch to see if it opens. The opening temperature is usually stamped on the thermostat somewhere. If you'd rather not remove the thermostat from the vehicle, you can run the engine for 5 minutes and see if the electric cooling fan cycles. Most V6 motors will reach operating temperature by then in springtime weather. Can't really do that if the fan is mechanical (attached to the motor). If Your temperature needle on the dashboard hasn't moved at all by 5 minutes, you either have a bad temperature sensor or the thermostat is stuck open. To rule out the temperature sensor, feel the upper radiator hose. If the hose is hot, your sensor is bad or has a bad connection. If the hose is cold, your thermostat is probably stuck open. If the thermostat is stuck closed, you'll usually have overheating and boil-overs from the coolant tank. Hope this helps.

Posted on May 13, 2014

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Posted on Jan 02, 2017

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OVERHEATING


Thermostat is probably bad.

Without knowing what year your car is, the thermostat could be here:

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.To test the thermostat, put it in a pot of boiling water. If it clicks, it works. If not, then replace it.

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If the thermostat not working how will I know 1994 cadillac 4.9L


Could be some overheating problem there; on 4.5L and 4.9L engines, check this procedure:
* Drain the coolant to a level below the thermostat housing.
* It may be necessary to remove the upper air filter assembly on some models.
* Remove the 2 bolts securing the upper thermostat housing to the lower housing.
* Remove the upper thermostat housing.
* Remove the thermostat and O-ring from the lower housing.

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Hope htlps.

May 02, 2013 | Cars & Trucks

1 Answer

Engine Diagram 2007 kia sportage


With conventional cooling system, the upper radiator hose goes to thermostat housing on the engine. You drain antifreeze down, a little, remove radiator hose from thermostat housing, remove thermostat housing, the thermostat should be inside the housing.
Some antifreeze is poisonous, dispose of properly.
Install new thermostat, hook everything back up. Add proper amount of antifreeze to the proper mark. Keep an eye on antifreeze level for a while till your sure all air worked out of the system.

Nov 04, 2011 | 2007 Kia Sportage 4x4 V6

1 Answer

Which way does thermostat go in to 1985 honda accord carb model? It is overeheating after putting thermostat in, maybe put in wrong.


If the problem accured only after puttting in the new (asuming it is new) thermostat - simply flip it over to see if that works. If not I suspect the thermostat is faulty. Let me know. Thanks

Dec 19, 2010 | 1985 Honda Accord

1 Answer

I am installing the thermostat on my F150 but it leaks, I done twice already,I know I'm doing something wrong,Is it the gasket before the thermostat or the other way around?


I'm having the same issue. I had to replace my front cover and I forgot to put in the thermostat. (Wasn't leaking at all). So then I decided to put it back in so I took off the housing and replaced the gasket and put in the thermostat. Now it leaks like no other. I have taken it off several times looking at it and I can't seem to figure it out. I have tried thermostat then gasket and other way around. I tried putting the spring part on the thermostat towards me and then away. Nothing is working. If you have figured it out let me know.

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2 Answers

How am i to know when the thermostat opens


The best way to know if the thermostat opens is by removing your radiator cap. Rev the engine and if you see the coolant moving on the radiator then that means the thermostat is open. if not then it is in close mode. If you want to open the thermostat simultaneuously, wait till your engine reach the operating temp. and turn the accleration wire in our engine. If you noticed the coolant is moving from left to right then your cooling systems is working and your thermostat is open,

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1 Answer

I have a 2000 Chevrolet Lumina 3.1 litre engine. The heater isn't working properly, it blows cold air for awhile raising the engine temperature. Once the thermostat kicks in the temp lowers which is...


Why it called DexKILL
Your best bet take it to a qualified repair shop !
Once the thermostat kicks in the temp lowers which is great. I know we have to replace the thermostat The thermostat doesn't kick in , it opens !!!! And if the temp. goes down when the thermostat opens ,it's working ! The redish clay looking stuff is rust , air got into the system . You probably have a bad radiator cap . Now you need a compleat cooling system flush !
Your heater core is plugged .

May 23, 2017 | 2000 Chevrolet Lumina

1 Answer

Heater isn't heating very much. don't know if it is the thermostat, don't know where it is at...do you know?


You might want to check your antifreeze if it's low it will blow cold air.
And maybe you should replace your thermostat as well.
Both of these solutions should make it work better.
Good Luck!

Feb 06, 2010 | 2002 Ford Expedition

1 Answer

Engine light has come on and the thermosat is not working properly


The engine light is probably on just because of the thermostat. Try with a thermostat you know is in order. If it works, change the thermostat.

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1 Answer

Heater and air conditioner aren't working


first check and if the thermostat is working. take it out put it in hot water. the thermostat should open up. also put a temp gauge in the hot water so you know at what temp it opens up. start there. dont forget theres more fuses under the hood for the ac unit

Dec 18, 2008 | 1994 Subaru SVX

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