Question about 2000 Mercury Grand Marquis

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Thermostat housing gasket leaking coolant 2004 mercury gran marquis

How to replace

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6ya6ya
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Posted on Jan 02, 2017

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husni_g2002
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SOURCE: Replacement of the thermostat in my 2003 Mercury Grand Marquis

yes you can,drain coolant from the radiator,remove radiator hose,detach the thermostat cover from engine , remove the thermostat noting the direction in which it was installed in block. remove the gasket and thoroughly clean the sealing surface , refit the therostat.rifitting is the reverse of removal.

Posted on Jan 20, 2009

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csmock132
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SOURCE: my 96 meunder the mercury grand marquis is running hot

A cracked Intake manifold. Check the manifold in two places, on the front cross over behind the alternator and the base of the heater hose connector on the rear of the passenger side.

Posted on Mar 02, 2009

  • 11 Answers

SOURCE: coolant leak from upper radiator hose where it meets engine

thermistate housing is the place you refer to it fuction is to hold a thermastate to open and close water flow at 150 to 190 degree according to car spectif the thermaste sticks it causes overheating and can blow the thermastate gasget, the tole cost is about 30$ at most for the thermastate and gasget...now many other things can cause a car to over heat and cause a hose leak and somtimes it is simple to just tighten the hiose clamp at the thrmastate and problem sovled see a water leak causes the radiator to lose presure and thus with out a sealed tight water cooling system the boiling point of water is lower and thus the car over heats when in doubt stop by the local gas station and have a tech take a quick look as it could be simple as the hose clamp difficult as a therm,astate but do not let it go to warp a head gasket as this blown headgasket is what is the end results of running a car to hot

Posted on Jul 03, 2009

  • 4340 Answers

SOURCE: how do I change the thermostat 2000 grand marquis

It needs to sit in a recess in the housing, typically if you are asking the question that you are asking, the thermostat housing may be bent or cracked. If it is nto installed correctly, it kills the housing...Must be perfectly true, and sqaure....

I am not sure about the gasket, if it came with, use it, some designs use o ring to seat the thermostat, others use o ring as seal...

i normally seal it anyways...

Posted on Sep 27, 2009

  • 564 Answers

SOURCE: how to replace starter +1993 Mercury Grand Marquis

disconnect battery,,jack car up,,put jack stand on frame,,take starter bolts out,(may not be easy),,take wires off starter,,hoped it helped,,

Posted on May 08, 2010

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1 Answer

How do i fix a leak under the thermostat housing on a 2003 merc grand marquis 4.6


ALL YOU HAVE TO DO IS BUY YOU AN NEW THERMOSTAT GASKET SET AND SOME HIGH TEMP GASKET GLUE REMOVE THE TWO LITTLE BOLTS PUT THE NEW THERMOSTATS AND GASKET AND GLUE GOOD AND MAKE SURE NOT TO OVER THIGHTEN IT BECAUSE IT WILL STRIP EAZY THAT ALL TO IT I HAVE THE SAME YEAR MAKE AND MODEL

Nov 19, 2012 | 2003 Mercury Grand Marquis

1 Answer

How to change thermostat


the radiator is filled to the top with coolant and the engine is run without the radiator cap in place, the coolant will expand and spill over as the engine warms up.
  • Drain some coolant into a clean container until the coolant level is below the thermostat housing.
  • Remove the upper radiator hose connection from the thermostat housing.
  • Loosen the housing bolts and remove the housing.
  • Remove the gasket and scrape it carefully from the surface of the housing and the mounting surface on the engine. If the gasket remains on either of the surfaces, there will probably bea coolant leak after reassembly. Some engines use a rubber O-ring to seal a thermostat housing.
  • Compare the size of the thermostat to the old one. They are of different sizes, types, and temperature ratings.
  • The temperature rating is stamped on the sensing bulb on the bottom of the thermostat. The temperature bulb faces the block.
  • When replacing a thermostat, be sure that the thermostat fits into the groove in the block or outlet housing. If the thermostat is installed upside down, the engine will overheat.
  • Install the gasket.
  • Reinstall the thermostat housing. Refill the system and run the engine or pressure test to check for leaks.
  • When the engine has reached operating temperature make sure the thermostat opens.
  • You should be able to see coolant circulating within the radiator.
  • Another way of checking thermostat operation is to feel the top of the radiator hose or use a thermometer or multimeter with a temperature probe to confirm that the coolant is warming up.
  • If the engine is overheating, but the top hose is still cool to the touch, the thermostat is stu

    CAUTION
    If the radiator is filled to the top with coolant and the engine is run without the radiator cap in place, the coolant will expand and spill over as the engine warms up.

    • Drain some coolant into a clean container until the coolant level is below the thermostat housing.
    • Remove the upper radiator hose connection from the thermostat housing.
    • Loosen the housing bolts and remove the housing.
    • Remove the gasket and scrape it carefully from the surface of the housing and the mounting surface on the engine. If the gasket remains on either of the surfaces, there will probably bea coolant leak after reassembly. Some engines use a rubber O-ring to seal a thermostat housing.
    • Compare the size of the thermostat to the old one. They are of different sizes, types, and temperature ratings.
    • The temperature rating is stamped on the sensing bulb on the bottom of the thermostat. The temperature bulb faces the block.
    • When replacing a thermostat, be sure that the thermostat fits into the groove in the block or outlet housing. If the thermostat is installed upside down, the engine will overheat.
    • Install the gasket.
    • Reinstall the thermostat housing. Refill the system and run the engine or pressure test to check for leaks.
    • When the engine has reached operating temperature make sure the thermostat opens.
    • You should be able to see coolant circulating within the radiator.
    • Another way of checking thermostat operation is to feel the top of the radiator hose or use a thermometer or multimeter with a temperature probe to confirm that the coolant is warming up.
    • If the engine is overheating, but the top hose is still cool to the touch, the thermostat is stuck closed and must be replaced.
    NOTE When a paper gasket is used and the recess is in the thermostat housing, it is a good practice to position the thermostat into the recess and glue the gasket to hold it in place. If it falls out of its groove during installation, the outlet housing can be cracked or a coolant leak will result. Before tightening the water outlet housing, try to rock it back and forth to be sure it is flush. Housings are often cracked during this step.ck closed and must be replaced.
NOTE When a paper gasket is used and the recess is in the thermostat housing, it is a good practice to position the thermostat into the recess and glue the gasket to hold it in place. If it falls out of its groove during installation, the outlet housing can be cracked or a coolant leak will result. Before tightening the water outlet housing, try to rock it back and forth to be sure it is flush. Housings are often cracked during this step

May 07, 2012 | 1998 Mercury Mystique

1 Answer

How does the thermostat fit properly in the housing


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Pacifica, 2003-2005
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).
  3. Connect radiator hoses and install hose clamp.
  4. Refill cooling system.
  5. Connect negative cable to remote jumper terminal

May 02, 2012 | 2004 Chrysler Pacifica

2 Answers

2004 Dodge Ram 1500 5.7L Hemi coolant leak: I


WELL I DO HAVE A SOLUTION TAKE THE PART TO A MACHINE SHOP HAVE THEM MAKE YOU ONE OUT OF ALUMINIUM IF IT REALLY BOTHERS YOU THAT MUCH

Apr 10, 2011 | 2004 Dodge Ram 1500

1 Answer

Change thermostat 1998 grand marquis


Locate the water hose at the top of the radiator and follow it to the top of the engine block. There you will find the thermostat housing. Remove the two bolts and remove the housing. Pay attention as to how the thermostat is sitting in the housing. Lift it out and put in the new thermostat the same way. Make sure you replace the thermostat housing gasket. Reassemble the housing and add anti-freeze until full.

Apr 11, 2010 | 1988 Mercury Grand Marquis

2 Answers

Leaking coolant from a small hole located in the block right under the thermostat housing coolant inlet. we removed housing and gasket replaced gasket and installed, leaks from small hole?


water pump failure, water pump on these run off the timing chain and the timing chain runs in oil, so they could not just put a weep hole on the pump because it would go strait to the oil pan, instead they redirected the coolant from the leaking pump to just below the thermostat housing. And good luck, it's at least a 6 hour job on these. Brandon-MO

Jan 17, 2010 | 2004 Dodge Intrepid

1 Answer

2004 sante fe coolant leak on top of trans housing


There is a metal coolant crossover tube with 5 gaskets 2 hoses and a thermostat above the transaxle anyone or all of these could be leaking

Jan 14, 2010 | 2004 Hyundai Santa Fe

1 Answer

Thermostat wont fit currectly using gasket supplied with thermostat-tried O ring-over thermostat leak was visible what do I do?


Hi:
With no thermostat, the thermostat housing should sit flush against the engine mount surface. The outer diameter of the thermostat should drop down into the recess provided and not even interfere with the gasket. Make sure both sides are clean , and all residue is removed. IF the thermostat will not fit into the recess provided, then take your thermostat housing to the place you bought your new thermostat, and have them fit your new one to your housing.

Dec 08, 2009 | 2000 Mercury Grand Marquis

1 Answer

How do I change the thermostat 2000 grand marquis


It needs to sit in a recess in the housing, typically if you are asking the question that you are asking, the thermostat housing may be bent or cracked. If it is nto installed correctly, it kills the housing...Must be perfectly true, and sqaure....

I am not sure about the gasket, if it came with, use it, some designs use o ring to seat the thermostat, others use o ring as seal...

i normally seal it anyways...

Sep 27, 2009 | 2000 Mercury Grand Marquis

1 Answer

Replacement of the thermostat in my 2003 Mercury Grand Marquis


yes you can,drain coolant from the radiator,remove radiator hose,detach the thermostat cover from engine , remove the thermostat noting the direction in which it was installed in block. remove the gasket and thoroughly clean the sealing surface , refit the therostat.rifitting is the reverse of removal.

Jan 20, 2009 | 2003 Mercury Grand Marquis

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