Question about 1993 Cadillac DeVille

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Replace thermostat - 1993 Cadillac DeVille

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Two big hoses attach to your radiator. Look for the one that goes back to the TOP of the engine. There is a housing with two bolts in it that the hose connects to. Drain radiator, remove hose. Remove the two bolts. Remove the housing. Thermostat is inside housing or still on engine. It just pulls out. Remove any remaining thermostat housing gasket material from the housing and the engine. Install new thermostat. Should only fit in one way. Install new thermostat housing gasket and the housing. Reattach hose and fill radiator, leaving the cap off. Turn on the car and wait until car gets to warm condition. You will see the water start to move from the radiator to the engine when the new thermostat releases at the proper temperature. Replace the radiator cap and clean up, you are finished.

Posted on Oct 09, 2010

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From autozone.com

  1. Drain the coolant to a level below the thermostat housing.
  2. It may be necessary to remove the upper air filter assembly on some models.
  3. Remove the 2 bolts securing the upper thermostat housing to the lower housing.
  4. Remove the upper thermostat housing.
  5. Remove the thermostat and O-ring from the lower housing.
replace thermostat - ce1bbf8.gif

Fig. Thermostat installation-4.5L and 4.9L engines


To install:

  1. Install the thermostat and a new O-ring to the lower housing.
  2. Install the upper thermostat housing to the lower housing. Tighten the thermostat housing bolts to 20 ft. lbs. (27 Nm).
  3. Refill the cooling system using a 50/50 mixture of water and ethylene glycol antifreeze.
  4. Start the engine and check for coolant leaks. Allow the engine to come to normal operating temperature. Recheck for coolant leaks.

Posted on Oct 09, 2010

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1 Answer

How do I replace thermostat?


    1. Maintenance and How-to: Thermostat Replacement ...

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    Just be sure that you do this when your engine is completely cooled. Locate yourthermostat if you haven't already done so. Place a bucket under where you're going to be working. Remove the clamp. Pull off the hose. Remove the bolts that hold thethermostat housing in place and lift out the old thermostat.

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The thermostat is an easy replacement. The part from the part store should be very inexpensive and is very easy to install. IMPORTANT: allow the cars cooling system to completely cool down before starting to work on it. Here are the steps to replace the thermostat:

1. Allow car to cool.
2. Place drain pan under radiator and allow for coolant to drain below the thermostat. Do not completely drain the system unless replacing the fluid.
3. Remove the hose clamp and hose from thermostat housing.
4. Remove the two bolts holding the housing to engine.
5. Remove the thermostat gasket and clean the gasket completely off the engine and thermostat housing.
6. Remove the thermostat and replace with new.
7. Place new gasket on with reassembly.

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1 Answer

Thermostat needs replaced


To replace a thermostat, you will need at least: 1. A new thermostat 2. Screwdriver 2. Needle-nosed pliers. Depending on the thermostat and location in your home, you may need more. Make sure the new thermostat you are using to replace the old one with is compatible to your 110-volt housing circuitry. Always turn off the electrical power to the home thermostat at the power panel or circuit breaker box.--------------------------------------------------------------------------
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1 Answer

Need to know how to replace the thermostat on a 1996 buick century wagon 3.1 6 cylinder engine



Trace the upper radiator hose to the mounting area on the intake manifold. Loosen the hose clamp on the manifold end of the hose and remove the hose. Pull the thermostat out of the intake manifold.

For more help and troubleshooting go through the help links below:---

Click the link below:-----





THERMOSTAT REMOVAL PROCEDURE/LOCATION DETAILS

------------

Where is Thermostat Located on Saturn

http://technoanswers.blogspot.com/2012/11/where-is-thermostat-located-on-saturn.html

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2004 Dodge Intrepid: How to replace Thermostat?

http://schematicsdiagram.blogspot.in/2012/06/2004-dodge-intrepid-how-to-replace.html

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http://repairhelpcenter.blogspot.com/2011/11/how-to-replace-thermostat-on-audi-a4.html

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http://repairhelpcenter.blogspot.com/2011/11/how-to-replace-thermostat-on-acura-car.html

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http://repairhelpcenter.blogspot.com/2011/10/where-is-thermostat-located-on-2006.html


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http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-thermostat.html


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1 Answer

How to replace thermostat


Its not very hard to replace thermostat.You can replace the thermostat.Follow the radiator hose that connects to intake manifold.That part connects to thermostat housing.For details regarding thermostat replacing,click this link below:--- http://howtobyme.blogspot.com/2011/10/how-to-replace-thermostat-on-2004.html -=--------------- This will help.Thanks.Helpmech.

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How do you replace a thermostat on a 1994 pontiac grand am 4 cyl


i own a 1989 ford laser gl and it over heated and bubbling.There is no water in the oil already checked . Could it be the thermostat or a gasket.

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2 Answers

Replacing the thermostate


drain out coolant in a drain until below thermostat level follow radiator hose to engine cylinder block to thermostat housing.remove thermostat housing than remove thermostat.replace with a new o-ring on thermostat before installing new thermostat.make sure thermostat housing surface and engine block surface clean.before installing new thermostat.

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Need to find where the thermastat is on a 2003 cadi


It is in the rear of the engine by the firewall and the intake manifold will need to be removed to gain access t it.

Engine Coolant Thermostat Replacement (LA3, LY9) Removal Procedure
  1. Remove the thermostat housing. Refer to Engine Coolant Thermostat Housing Replacement .

  2. 790876.gif
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  3. Complete the following in order to remove the thermostat from the thermostat housing:
  4. 2.1. Depress the ears on both sides of the thermostat. 2.2. Rotate the thermostat until it clears the retaining feature of the housing. 2.3. Release the pressure from the thermostat. 2.4. Pull the thermostat from the thermostat housing.
Installation Procedure

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  1. Complete the following in order to Install the thermostat into the thermostat housing:
  2. 1.1. Align the thermostat pin to the thermostat housing orifice. 1.2. Depress the ears on both sides of the thermostat. 1.3. Rotate the thermostat until it aligns with the retaining feature of the housing. 1.4. Release the pressure from the thermostat.
  3. Install the thermostat housing. Refer to Engine Coolant Thermostat Housing Replacement .

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2 Answers

When replacing the thermostat on my 98 jeep wrangler (4.0 6 cyl.) does the thermostat go in first, then the gasket or the other way around?


Check out the diagram:

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The removal of the thermostat from its housing on the 4.0L engine

To install:
  1. Install the replacement thermostat so that the pellet, which is encircled by a coil spring, faces the engine. All thermostats are marked on the outer flange to indicate the proper installed position.
  2. Observe the recess groove in the engine cylinder head .
  3. Position thermostat into this groove with arrow and air bleed hole on outer flange pointing up.
  4. Install replacement gasket and thermostat housing

    CAUTION Tightening the thermostat housing unevenly or with the thermostat out of its recess may result in a cracked housing.

  5. Tighten the housing bolts to 15 ft. lbs. (20 Nm) torque.
  6. Install hoses to thermostat housing.
  7. Install electrical connector to coolant temperature sensor.
  8. Be sure that the radiator draincock is tightly closed. Fill the cooling system.
  9. Start and warm the engine. Check for leaks

WARNING Do not loosen radiator drain **** with system hot and pressurized. Serious burns from coolant can occur.



NOTE Do not waste reusable coolant. If solution is clean, drain coolant into a clean container for reuse. If thermostat is being replaced, be sure that replacement is specified thermostat for vehicle model and engine type.

Dec 06, 2009 | 1998 Jeep Wrangler

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