thermostat replacement ?

2005 FORD TAURUS
79,000 MILES • 6 CYL • FWD • AUTOMATIC
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ANDREASTEVERS
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The thermostat was replaced about 1 month ago and my engine just started overheating again. Upon inspection I noticed that the coolant was leaking where the seal is for the water hose connection and the intake manifold. I replace the thermostat and the gasket yet again and it is still leaking. I am not sure what to try now.
May 29, 2009 at 7:26 PM
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BMRFIXIT
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You must have a bad gasket here is a guide to help you change out the thermostat with instructions below to show you how on your car.

https://www.2carpros.com/articles/replace-thermostat

Check out the diagrams (Below). Please let us know what happens.
May 30, 2009 at 4:05 AM
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MARKOS1979MDG
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I replaced the thermostat. But it's still leaking. Is there suppose to be some kind sealant I was to put on?
Oct 21, 2020 at 9:59 AM (Merged)
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KASEKENNY
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Hi,

More than likely one of the mounting surfaces is not true any longer and so your gasket can no longer take up that difference. I would suggest just using Motorcraft Silicone TA-29. This is meant to resist oils and coolant. I use it all the time to seal thermostat all the time.

Let me know if you have questions. Thanks
Oct 21, 2020 at 9:59 AM (Merged)
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JAMESO
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how do i change my thermostat?
Oct 21, 2020 at 9:59 AM (Merged)
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JACOBANDNICKOLAS
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Hi:
drain the radiator. Follow the upper rad hose to the engine. It will end at the t-stat housing. Remove the rad hose clamp, then the hose. Now remove the t-stat housing. Under the housing you will find the t-stat. Pay attention to the direction the old stat is sitting in and replace the new one the same way. Just reverse the sequence to replace it.

Joe
Oct 21, 2020 at 9:59 AM (Merged)
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SIERRA KEATLEY
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thermostat location
Oct 21, 2020 at 9:59 AM (Merged)
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BMRFIXIT
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THERMOSTAT - 3.0L (4V)
Removal and Installation
1.Raise and support vehicle. For additional information.
2.Remove the front splash shield
3.Drain the cooling system.
4.Remove the cooling tube bolt.
5.Lower the vehicle.
6.Remove the radiator upper cooling tube bolt.
7.Disconnect the upper radiator hose and engine vent hose. .
8.Remove the two bolts, and separate the radiator tube from the thermostat housing. Remove the thermostat.
9.To install, reverse the removal procedure.



L(2V) locate upper hose and thermostat housing remove 3 bolts holding housing remove and replace thermostat
Oct 21, 2020 at 9:59 AM (Merged)
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BOBESSIE
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2002 ford taurus sel w/24valve dohc, not heating but core not leaking and coolant is not low hoses seem intact can it be the thermostat
Oct 21, 2020 at 9:59 AM (Merged)
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MMPRINCE4000
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Possible thermostat, but with engine at temp, quickly touch both heater core hoses, if one is hot and one cool/warm, then core is blocked. If both are cool/warm then thermostat.
Oct 21, 2020 at 9:59 AM (Merged)
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BOBESSIE
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could it also be the heater blend door or the heater blend door lever as apparently they fail easily
Oct 21, 2020 at 9:59 AM (Merged)
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MMIKEC9
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Engine Mechanical problem
2002 Ford Taurus Two Wheel Drive Automatic 100000 miles

need to locate and replace thermostat
Oct 21, 2020 at 9:59 AM (Merged)
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BLUELIGHTNIN6
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3.0 DOHC engine...


Drain the coolant until the level of the coolant is below the level of the thermostat.
Raise the vehicle and support it with jackstands.
Disconnect the lower radiator hose from the water inlet connection.
Unfasten the two water inlet connection retaining bolts and remove the water inlet connection.
Remove the O-ring seal and thermostat from the water inlet connection. Inspect the O-ring for damage and replace as necessary.


To install:

Clean the water inlet connection mating surfaces.
Install the O-ring, thermostat and the water inlet connection. Refer to the accompanying illustration If you can-t remember how the O-ring and thermostat are positioned.
Install the water inlet connection assembly retainers and tighten them to 71-106 inch lbs. (8-12 Nm).
Connect the lower radiator hose to the water inlet connection.
Fill the engine with coolant, start the engine and check for leaks.
Stop the engine and top off the coolant recovery reservoir as necessary.
Oct 21, 2020 at 9:59 AM (Merged)
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ANGELMCCOLLUM
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Engine Mechanical problem
2001 Ford Taurus 6 cyl Automatic 180000 miles
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My husband was checking my thermostat to make sure it was working correctly, but when he was removing it he broke the bolt. He cut the bolt flush and tried to drill it threw then rethread it. When doing that he noticed that he went some what at an angle and not straight threw. What are we to do now? Can it be fixed?
Oct 21, 2020 at 10:00 AM (Merged)
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MHPAUTOS
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Hi there,

You can still remove this broken bolt with a good quality stud extractor, ask you local tool supply to show you what is available if in doubt get a mechanic to do this for you.

Mark (mhpautos)
Oct 21, 2020 at 10:00 AM (Merged)
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RONTANK71
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May have a warped thermostat cover.
Oct 21, 2020 at 10:01 AM (Merged)
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RIVERMIKERAT
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No.See images.
Oct 21, 2020 at 10:01 AM (Merged)
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REEVESLG
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Where is the thermostat located on the engine
Oct 21, 2020 at 10:01 AM (Merged)
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RASMATAZ
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Removal and Installation Drain the engine cooling system.


https://www.2carpros.com/forum/automotive_pictures/12900_t1_2.gif

Disconnect the lower radiator hose from the water outlet adapter.


https://www.2carpros.com/forum/automotive_pictures/12900_t2_1.gif

Remove the bolts, the water outlet adapter and thermostat. Remove and discard the O-ring seal. To install, reverse the removal procedure. https://www.2carpros.com/kpages/auto_repair_manuals_alldata.htm
Oct 21, 2020 at 10:01 AM (Merged)
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BRANDYLYNNM
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While replacing the thermostat in my 2000 Ford Taurus, the bolt broke off into the part that the housing hooks up to(not sure what it is) then while it was being drilled out the part that the bolt goes into snapped off of it....not sure what the next step in getting this repaired would be, is that the intake manifold that goes into and how can this be fixed??
Oct 21, 2020 at 10:01 AM (Merged)
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JACOBANDNICKOLAS
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Yes, it is the intake... I don't know how big of a piece broke, so you may want to have a welder take a look at it. If it isn't repairable, then your only choice is to replace the intake.
Oct 21, 2020 at 10:01 AM (Merged)
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BRANDYLYNNM
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It is the top upside down U shaped piece where the bolt would go in, i was told it can be fixed w/ jb weld, what do u think?
Oct 21, 2020 at 10:01 AM (Merged)
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SHADOWMAN
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JB weld is amazing stuff. I used it to fill in a threaded hole that retains the timing cover of my 1992 Taurus because I broke off a mounting bolt in and drilled in an angle, bad thing.

I filled the hole with JB weld, covered it up with masking tape and waited a day for it to harden. Next day I mounted the timeing cover, used a drill bit long enough to go through the timing cover and into the engine block, tapped the hole for a couple of Helicoil inserts after removing the timing cover, job was done and holding.

If you can, use the thermostat housing as a guide to drill into the intake manifold, it'll help you stay straight. You may have to buy a Helicoil kit of it but it's worth it. Better than paying for a new or even used intake manifold and all the other work involved to replace it.

Good luck.
Oct 21, 2020 at 10:01 AM (Merged)
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BRANDYLYNNM
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Thanks, we got the jb weld on now and letting it sit over night so hopefully tomorrow we will be able to put it back together, thanks for the feedback :)
Oct 21, 2020 at 10:01 AM (Merged)
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JACOBANDNICKOLAS
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I hope it works. I'm a fan of it for a temporary fix only.
Oct 21, 2020 at 10:01 AM (Merged)
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SHADOWMAN
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Let us know how you did.
Oct 21, 2020 at 10:01 AM (Merged)
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BRANDYLYNNM
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Well the jb weld did not work as soon as we put any kind of pressure on it to put the bolt in it came back off so we put in bolt with a large washer on the end to hold it tight against the thermostat housing and i cant believe it but its holding... lol. so as long as it holds we can put off paying for a new manifold or having someone weld it on. Thanks for the tips :)
Oct 21, 2020 at 10:01 AM (Merged)
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JACOBANDNICKOLAS
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I was afraid that would happen. It seals and will hold something together, but has no tensile strength. Regardless, I'm glad you got it back together and hope the new fix hold up for you.

Let us know if you have questions in the future.
Oct 21, 2020 at 10:01 AM (Merged)