Question about 1988 Mercury Grand Marquis

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How do i replace the thermostat in an 88 grand marquis??

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  • Mercury Master
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Click here Connie.

Posted on Jan 13, 2013

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Posted on Jan 02, 2017

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

czaa
  • 4514 Answers

SOURCE: i have a 88 grand marquis,not gettin fire to my

bet if u took the dist cap off it would look like tooth decay inside-n ur plug wires? replacing n inspecting these parts is the commonest overlooked tthing in toonups--chec fuel delivery for good measure

Posted on Aug 31, 2009

  • 18 Answers

SOURCE: speedo not working

hate to say it but you may need a new speedometer you can get one from a junk yard help info helps

Posted on Mar 06, 2010

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SOURCE: which engine oil should i use for 88 grand marquis

Valvoline synthetic would be very good , or even valvoline 10w40 non-synthetic .

Posted on Oct 25, 2011

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2 Answers

Which engine oil should i use for 88 grand marquis


Valvoline synthetic would be very good , or even valvoline 10w40 non-synthetic .

Oct 25, 2011 | 1988 Mercury Grand Marquis

1 Answer

I have what appears to be a broken 9L3Z8592B (thermostat housing) from a 2000 Grand Marquis. How big a deal is that to replace? The part's cheap enough...


its not hard to replace and while your there change the thermostat and gasket(seal) and the anti-freeze if it hasn`t been changed.make sure all the air is out of the system after refilling.

Apr 24, 2011 | 2000 Mercury Grand Marquis

1 Answer

I can turn the ac off and turn the heat on in my 1998 Mercury Grand Marquis. How do I control the thermostat? I have tried putting on auto,vent,floor/defrost,defrost, and turned the temp up to 90 and it...


It sounds like thermostat (in coolant system) needs to be replaced. They only control you have for temps are the dials on dash, but if coolant thermostat is sticking you're limited to what it outputs. Replace coolant thermostat and you should be "good to go"

Feb 22, 2011 | 1998 Mercury Grand Marquis

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

1 Answer

I have a 1997 Mercury Grand Marquis. The hotwater


Check your antifreeze with a antifreeze checker to make sure it is at the right temp depending on where you live and how cold it gets there. If you have too much antifreeze the engine temp will not come up to over 200 and also replace your thermostat, making sure to realize they make them in different temp settings. Talk to people and make sure the thermostat you install is the right one for your climate where you live. Sounds to me as though your temp never comes up to what it should be. Also it could be the heater core.

Apr 06, 2010 | 1997 Mercury Grand Marquis

1 Answer

Speedo not working


hate to say it but you may need a new speedometer you can get one from a junk yard help info helps

Mar 06, 2010 | 1988 Mercury Grand Marquis

1 Answer

I have a 88 grand marquis,not gettin fire to my


bet if u took the dist cap off it would look like tooth decay inside-n ur plug wires? replacing n inspecting these parts is the commonest overlooked tthing in toonups--chec fuel delivery for good measure

Aug 31, 2009 | 1988 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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