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I have to change the thermostat on my husband's truck. Where is it located? I have some engine knowledge so not totally blind here. Thank you. :) Oh and it's the 6.0 L.

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Look at the engine side of the upper radiator hose. You will find it under that removable casting.

Posted on Oct 10, 2010

  • mgood86 Oct 10, 2010

    Thank you.

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Thermostat location


You don't mention what year, however a blind guess is in the front tube housing at the front of the engine block,your upper radiator hose is connected to it.remove the two 1/2 inch bolts and it should be under the neck of the housing,good luck,Gary

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The thermostat is located on the side head of the engine on the drivers side. If you follow the upper radiator hose to the plastic thermostat housing, (this is where it is located). This is a 2 piece housing. 3 BOLTS hold the main water housing to the engine block (These do not need to be removed to change the thermostat. The three screws on the thermostat housing (usually torx heads) need to be removed. (where the upper radiator). Inside you will find the thermostat. Remember to replace the thermostat gasket at the same time and also some thermostats will only fit in a certain way so pay attention when the old is removed if there is a little hole (foget what it is called) at the 12 oclock position on the thermostat.

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I have a 1999 Nissan Sentra SE, 2.0 engine. The temperature guage doesn't work. Every now and then (not often) the needle will go up just above the C, then as soon as it goes up, it goes right back down...


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1 Answer

Car is overheating


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Engine Overheats Mercury Villager GS 1997 6 Cyl


Most likely a sticky thermostat, what is happening is that it's staying closed most of the time causing the engine to over heat, eventually it will open allowing the fluid to circulate and cool down from the radiator. I suggest changing the thermostat rather quickly or you could do damage.
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