Question about Toyota T100

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When im turning on my aircon the temperature arises.i have all the fans checked that supports the continous heat of the engine but still over heating takes place according to the opinions of others that over heating of toyota lite ace 1994 model is a common problem.

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Perhaps you might have a blown engine gasket. I used to have that problem with my car. Just hope it just a gasket to the carb... if its the engine, tsk tsk, it'll cost you.

Posted on Jul 21, 2012

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It might not be the fan but the strain on the engine with the AC on the makes the engine heat up.
So a possible timing tuning of the engine is necessary to keep the engine in trim mode. Nomally the heat will also be related to the external temperature as it could make it worse.
An opinion from Toyota will be good to concur and decide.

Posted on Sep 28, 2010

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1 Answer

Overheating when I sit idle.


Over heating the engine is a serious concern. With the hood raised you should hear the motorized fan turn on just behind the radiator as the engine requires additional cooling.. If you look in from the rear of the radiator you should see the fan blades.

This electric powered motor operates on a thermostat and when the engine temperature rises this fan should come on. I'm assuming from your description that when driving and air is flowing through the radiator as the car travels the engine is nor overheating.

Check fan motor thermostat, check fan motor and check wiring.

Wiring Diagrams related to the Honda Civic
http://www.wiringdiagrams21.com/category/automotive/honda-automotive/civic

Motor engine cooling fan only runs as engine temperature requires additional cooling.
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if engine over heating coolant over flow jug will boil over you will see steam.sound like you have either faulty engine coolant temperature sensor or could have faulty fans relay or fuse or pcm problem if coolant fans dont turn on.have garage with code scanner that can do a snap shot on coolant temperature sensor check see how hot coolant temperature is see if coolant temperature over 220 degrees engine getting too hot.could have faulty water or blowed head gasket check engine oil on oil dip stick look milkly you have blowed head gasket. i use infra red laser thermometor check see how hot engine is over 107 celsius engine is overheating.

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1 Answer

My truck is over heating, i have changed the thremostat and the radiator. I dont know if i burbed it corectly. Im at a stand still. it has good flow so the water pump is good.


Hi,
Firstly check that the engine is actually over heating, you may have a faulty water temperature sender unit.
Also check your gauge is ok, disconnect the water temp sender wire and the gauge should either go to hard hot or cold. If neither happens your gauge is faulty.
Let me know how you get on.
Also check your fans are coming on to cool the radiator, if the engine is getting to over half way on the temperature gauge and the fans are not coming on then you have a faulty coolant fan sensor.
Replace this and you should be ok after that.
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1 Answer

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My 2003 Pontiac Grand AM is overheating. I have had the water pump, thermostat, and everything along with it replaced already. From what my husband can tell, the radiator fan is not coming on when it...


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1 Answer

Fan not turning off


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