Question about 1998 Ford Taurus

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I have been having trouble with my coolant system, I checked the thermostat and found that it was shot so i removed it. After that I reconnected the radiator hose back on and tried starting the car up when i did so coolant started rushing out of the muffler, what would cause this and how do i fix it?

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  • jjrlperrys Apr 24, 2010

    I am pretty sure that it was coolant it was a lot of fluid i believe the engine may have overheated and when i put coolant into the holding tank within minutes it is bone dry again, how do i figure out exactly what the problem is whether it is a blow head gasket, or cracked motor block? It is the only vehicle i have and i really need to fix the problem if i can. Can u tell me how much this could cost me to fix it?

  • jjrlperrys Apr 24, 2010

    There isn't anyway that something could be blocked somewhere forcing the coolant into the muffler or the only way that the coolant could get to the muffler is by a blown head gasket or cracked motor block?

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Coolant?
Are you sure it was not water (condensate)?
If you have actual coolant coming out the exhaust you have a MAJOR engine problem.
Most likely blown head gasket - but if the thermostat was faulty - and the engine overheated - you may have a cracked cylinder or engine block.

Thanks!!

Posted on Apr 24, 2010

  • blueextc3221
    blueextc3221 Apr 24, 2010

    The fuel & ignition system is seperate from the cooling.

    The only way for coolant to reach the exhaust of the ignition is for a crack to be present, or the gasket to be failed.



    You can hve the compression tested on each cylinder to check for a leak.... however yuo can be assured at LEAST the head gasket is blown - shooting coolant into the exhaust manifold. The repairs may be more than the value of the vehicle. Be prepared.



    Thanks!!

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HOW TO FLUSH AND RENEW COOLANT?


if the thermostat is in the head at the top radiator hose , remove it an fill the cooling system until the water is at that point --refit the thermostat and continue filling
make sure that the heater is turned on so that any air is moved out of the system

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How does the thermostat fit properly in the housing


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Removal & Installation

Print Here is how to do it,if it does'nt fit right make sure you have the right thermostat.


3.5L Engine


CAUTION Never remove pressure cap with the system hot and under pressure because serious burns from coolant can occur.

  1. Disconnect negative cable from remote jumper terminal.
  2. Drain cooling system.
  3. Disconnect radiator upper hose from thermostat housing.
  4. Remove thermostat housing bolts.
  5. Remove housing, thermostat, and gasket.

    0996b43f80204be2.jpg enlarge_icon.gifenlarge_tooltip.gif

    Fig. View of the coolant outlet connector (1) and thermostat housing (2)-3.5L engine
    View of the coolant outlet connector (1) and thermostat housing (2)-3.5L engine

  6. Clean gasket sealing surfaces.

To install:
  1. Install thermostat and gasket into thermostat housing. For ease of installation, install bolts in housing for thermostat and gasket retention.
  2. Install thermostat and housing to the intake manifold. Tighten the bolts to 105 inch lbs. (12 Nm).
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HOW DO I REPLACE THE THERMOSTAT IN A 2000 FORD MUSTANG V6


1. Make sure the engine is cool.
2. Using a clean bucket disconnect the lower radiator hose and carefully drain around 1 gallon off coolant then reconnect hose.
3. Follow the upper radiator hose to the engine where it's connected to the gooseneck on the engine.
4. remove the 2 bolts holding the gooseneck and lift it up to remove the thermostat making a mental note on how it was installed.
5. Clean both sides of the gasket surfaces, install new thermostat in the same position it was removed and replace O ring(only use a Motorcraft replacement to avoid having fit issues) alternate tightening bolts until tight.
6. Refill radiatior to proper level.
7 Leaving the raditor cap off, start the car turn on the heater and let it warm up keeping an eye on the coolant level, it will go down once the air works it's way out of the cooling system.
8. Top off the system and tighten radiator cap. Check the coolant level several times during the week, there may still be some air left in the system.

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Welcome to Fixya

Thermostats almost always reside in a housing at the engine side end of the upper radiator hose. Drain coolant first, then loosen radiator hose to access thermostat housing. If you can't find the housing, consult your vehicle service manual for location. Loosen the bolts that hold down the thermostat housing. Remove the housing to reveal the thermostat. Use a scraper to remove old gasket material from all mounting surfaces. Place new gasket on housing. Use a small amount of grease or adhesive to hold it in place during reassembly. Reconnect all hoses. Close radiator petcock. Refill cooling system with recommended 50/50 blend of water and coolant. Run engine and heater to purge air from cooling system. Recheck the coolant level once engine is cool.

Please see this link. This came from one of our good expert here in fixya.

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Thermostats almost always reside in a housing at the engine side end of the upper radiator hose. Drain coolant first, then loosen radiator hose to access thermostat housing. If you can't find the housing, consult your vehicle service manual for location.

Loosen the bolts that hold down the thermostat housing. Remove the housing to reveal the thermostat.

Note the location and orientation of thermostat relative to the engine. Remove thermostat.

Use a scraper to remove old gasket material from all mounting surfaces.

Place new gasket on housing. Use a small amount of grease or adhesive to hold it in place during reassembly.

Make sure new thermostat is oriented properly and reinstall the housing.

Reconnect all hoses. Close radiator petcock. Refill cooling system with recommended 50/50 blend of water and coolant. Run engine and heater to purge air from cooling system. Recheck the coolant level once engine is cool.
found info on web site listed
Good luck

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1 Answer

Replacing themostat


Please see my tip at http://www.fixya.com/cars/r5929960-s_thermostat . These are generic instructions. Specific instructions for your car are provided below. please get back to me with any questions.

procedure from autozone.com:

3.4L Engine

  1. Disconnect the negative battery cable.
  2. Remove the air cleaner and duct assembly.
  3. Partially drain the cooling system into a suitable container, to a level below the thermostat.
  4. Disconnect the radiator hose from the coolant outlet.
  5. Unfasten the coolant outlet retaining bolts.
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Fig. Fig. 3: Unfasten the bolts and remove the coolant outlet

  1. Remove the outlet, then remove the thermostat.


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Fig. Fig. 4: Once the outlet is removed, you can remove the thermostat

  1. Thoroughly clean the gasket mating surfaces.

jturcotte_413.gif

Fig. Fig. 5: Location of thermostat housing and outlet on engine.



To install:

  1. Install the new thermostat with the pellet towards the engine.
  2. Install the outlet to the intake manifold. Apply RTV sealant to the housing bolts and tighten to 18 ft. lbs. (25 Nm)
  3. Reconnect the radiator hose to the thermostat coolant outlet.
  4. Install the air cleaner and duct assembly.
  5. Refill the coolant and check for leaks.

When adding coolant, it is important that you use DEX-COOL® (orange colored, silicate-free) coolant. If silicate coolant is added to the system, premature engine, heater core or radiator corrosion may result. In addition, the engine coolant will require change sooner.
  1. Connect the negative battery cable.

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For 1999 Oldsmobile Aurora 4.0L SFI DOHC 8cyl check thie how to replace a Thermostat:

Parts:
1. Thermostat

Tools:
1. 3/8 in. Drive Ratchet
2. Needle Nose Pliers
3. Screwdriver
4. Cooling System Pressure Tester
5. Socket Set
6. Radiator Hook Tool

Steps:
Step 1 Open the hood and locate the vehicle’s radiator.
o Tip: Make sure the vehicle has cooled down before inspection.
o Tip: Safety Tip:Always wear safety glasses when working on your vehicle. Wear other personal protective equipment (PPE) when necessary, for example latex gloves or safety shoes.


Step 2 Remove the vehicle’s radiator cap and use a radiator pressure tester to check for leaks.

Step 3 Drain out some of the engine coolant in the radiator so the coolant level is below the thermostat housing to prevent leaking when replacing the thermostat.

Step 4 If necessary, remove the upper radiator hose.
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Step 5 Remove the thermostat housing bolts.

Step 6 Remove the thermostat housing.

Step 7 Remove the thermostat.
o Tip: Make sure to note the way the thermostat is installed. Installing the thermostat backwards will affect how the cooling system performs.

Step 8 Clean the mounting surfaces. Install the new thermostat as it was removed and always use a new thermostat gasket.

Step 9 Reinstall thermostat housing and tighten mounting bolts evenly. If applicable, reconnect the upper radiator hose.

Step 10 Refill the cooling system with coolant.

Step 11 Start the vehicle with the radiator cap off and allow the engine to run for several minutes. This allows the air bubbles to escape the cooling system.

Step 12 Reinstall the radiator cap.

Step 13 Run the engine until up to normal operating temperature. Remember to keep an eye on the temperature gauge to prevent overheating.


Hope helps (remember rated)

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1 Answer

Replace thermastat where is it and i need a easy fix solution


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  1. Before servicing the vehicle, refer to the Precautions section.
  2. Disconnect battery negative cable from remote negative terminal on shock tower and properly isolate to prevent accidental reconnection.
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  3. Drain cooling system to the thermostat level or below.
  4. Remove or disconnect the following:
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    240b2a6.jpg
    Fig. Thermostat and housing-2.0L and 2.4L engines

To install:
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  1. Drain cooling system to the thermostat level or below.
  2. Remove the Coolant Recovery System (CRS) hose and thermostat/engine outlet connector bolts.
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    969cc63.jpg
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    f7f1b3d.jpg
    Fig. Thermostat assembly-2.4L engine

To install:
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  2. Install the engine outlet connector onto cylinder head and tighten bolts to 110 inch lbs. (12.5 Nm)
  3. Connect the Coolant Recovery System (CRS) hose.
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  2. Drain the cooling system to the thermostat level or below.
  3. Remove the Coolant Recovery System (CRS) hose and thermostat/engine outlet connector bolts.
  4. Remove the thermostat assembly, and clean sealing surfaces.

    a1e1b65.jpg
    Fig. Thermostat assembly-2.4L engine

To install:
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  4. Connect the CRS hose.
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Hope help with this (remember rated this post).

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3 Answers

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its hardly one of the frost plugs leaking at the back of the engine is it...due to the pressure when the thermostat stoped working,,,probably a long shot though,,,,

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1 Answer

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REMOVAL & INSTALLATION
2.4L Engine
See Figure 1
  1. Disconnect the negative battery cable.
  2. Place a large drain pan under the radiator drain plug. Allow the cooling system to sufficiently cool down before opening the drain plug to avoid personal injury. Drain the coolant to below the thermostat level.
  3. Disconnect the upper radiator hose at the thermostat housing.
  4. Remove the thermostat housing bolts and coolant outlet connector of the thermostat housing.
  5. Remove the thermostat assembly from the vehicle and discard. Discard the old thermostat gasket.
0900c1528003c458.jpgFig. 1: Thermostat installation-2.4L engineTo install:
  1. Clean all gasket mating surfaces.
  2. Install the new thermostat in the correct position. If equipped, align the air bleed valve on top of thermostat to the vent recess in the water box (engine side) of the thermostat housing.
  3. Dip the new new gasket in clean water and install on the water box surface of the thermostat housing.
  4. Install the thermostat housing over the gasket and thermostat, making sure the thermostat is in correct position.
  5. Install the thermostat housing bolts and torque to 20 ft. lbs. (28 Nm).
  6. Reconnect the radiator hose. Tighten the radiator hose clamp.
  7. Connect the negative battery cable.
  8. Fill and bleed the engine cooling system.
  9. Pressure test for leaks.
3.0L, 3.3L and 3.8L Engines
See Figures 2, 3, 4, 5, 6 and 7
  1. Disconnect the negative battery cable.
  2. Place a drain pan under the radiator drain and drain the cooling system to just below the thermostat level. Close the drain.
  3. Remove the upper radiator hose from the thermostat housing, then remove the housing.
  4. Remove the thermostat and discard the gasket.
0900c1528003c459.jpgFig. 2: Thermostat installation detail-3.0L engine 0900c1528003c45a.jpgFig. 3: Thermostat installation detail-3.3L and 3.8L enginesTo install:
  1. Clean the housing mating surfaces.
  2. Dip the new gasket in clean water and place it on the water box surface.
  3. Center the thermostat on the gasket, in the water box.
0900c1528003c45b.jpgFig. 4: Remove the radiator hose from the waterneck by loosening the hose clamp ...
  1. Make certain the bolt threads are clean. Threaded bolt holes exposed to coolant are subject to corrosion and should be cleaned with a small wire brush or correct size thread-cutting tap. Install the housing, making sure the thermostat is still in the recess, and tighten the retaining bolts to 105 inch lbs. (12 Nm) for 3.0L engine or to 21 ft. lbs. (28 Nm) for 3.3L and 3.8L engines. Reconnect the upper radiator hose and tighten the hose clamp.
  2. Connect the negative battery cable.
  3. Fill and bleed the engine cooling system with a clean 50/50 mixture of ethylene glycol antifreeze and water.
0900c1528003c45c.jpgFig. 5: Lift the waterneck housing off of the lower intake manifold, then ... 0900c1528003c45d.jpgFig. 6: ... remove the thermostat out of its mounting flange
  1. Make sure the radiator is full and start the vehicle.
CAUTION Do not remove the radiator cap once the vehicle is warm. Coolant is under pressure and may cause scalding or personal injury.
  1. Run the vehicle until the thermostat opens. Check the coolant level in the overflow tank and fill if necessary.
  2. Pressure test for leaks.
0900c1528003c45e.jpgFig. 7: Make sure to clean the waterneck before installation

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