Question about 2004 Mercury Grand Marquis

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Where are the spark plugs located on a 2004 mercury marquis?

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Posted on Jan 02, 2017

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SOURCE: locating my spark plugs

http://www.autozone.com/shopping/repairGuide.htm?pageId=0900c152801edb28

Posted on Feb 26, 2009

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  • 1 Answer

SOURCE: own a 1997 mercury grand marquis. went to change

The 4.6 does not have an traditional distributor. This year engine should have two coil packs located on the front of each valve cover. Each coil pack controls four cylinders. Some of the plug wires will cross over the front of the engine in a wire loom on top of the alternator. The spark plugs are located down in the intake manafold. they run beside the fuel rail on each side of the intake manafold where it joins to each head. You will need an extention at least 8 to 10 inches long to get at the spark plugs. The plug wire fit snuggly into the intake manafold and have an extention on them that connects to the spark plug.

Posted on Jan 22, 2010

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SOURCE: where are the spark plugs located on a 2000 Mercury Grand Marquis

There are eight COPs (coil-on-plugs) to remove. Using a 7mm or 9/32" socket, remove each bolt securing each COP to the intake manifold on top of the engine. Remove all eight COPs, and the spark plugs are underneath. When replacing the spark plugs, use only the proper Ford/Motorcraft plugs, even if they cost twice as much as the aftermarket ones. You will avoid further headaches this way. Hope this helps.

Posted on Mar 30, 2010

SOURCE: Where exactly are the spark plugs located on a

Remove the Ignition Coils,one connector at a time

Spark-Plugs under them,do 1, then replace the coil

Need a 5" Plug socket. like a Snap-On item

Posted on Feb 22, 2011

  • 946 Answers

SOURCE: where are the spark plugs located in a 1999

If it's a 4.6 litre, they are really easy.........just trace the wires from the coil packs on the front left and right of the engine to the holes they plug into.
I always tape my plug socket to my extension so it will not be stuck down in the hole.The plugs are easily accessible.
Every plug I do one at a time.I loosen 3 turns ,remove the extension and socket,and then crank the engine to blow the debris up out of the hole.It doesn't matter if the engine fires ot starts,Just shut it off immediately and remove the plug all the way and replace it right then.
Setting the gap a hair(.004") more than specs will ensure you get the best gas mileage.ONLY .004"...no more than that. don-ohio

Posted on Oct 12, 2011

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1 Answer

How do i remove the valve cover on a 2004 mercury grand marquis


click on job diagram at the right hand side...if you create an account with autozone online you can access DIY manuals for your vehicle...hopefully they have enough info for you to find how to remove said housing
http://www.autozone.com/autozone/parts/2004-Mercury-Grand-Marquis/Cylinder-Head/_/N-jlgzpZ8znuv?_requestid=57987

Nov 04, 2012 | 2004 Mercury Grand Marquis

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What is the gap for the spark plugs on a 1990 Mercury Grand Marquis?


That should be under the hood on the Federal
Emission Label

Any spark plug manufactures web site, has it next to
the plugs avail to fit your engine code

May 24, 2012 | 1990 Mercury Grand Marquis

1 Answer

2001 grand marquis where are the spark plugs


Located on sides of engine block just above the exuast manifold follow the spark plug wires if all else fails(if you are changing the plugs do them one at a time and only remove the wire from the one you are removing and replace it as soon as you have the new one in this avoids any confusion on which. Plug wire goes where

Jan 04, 2012 | 2001 Mercury Grand Marquis

1 Answer

Can you replace a spark plug on a 1999 Mercury Grand Marquis without pulling the AC


yes you can. the spark plugs are located on top of the motor under the fuel rails. it has coil packs on each cylinders. you need to unbolt the coil turn it then pull it out. its a tight fit but can be done. For more room you can puul the fuel rails. but can be done with. good luck

Oct 03, 2011 | 1999 Mercury Grand Marquis

1 Answer

I have a 2004 Mercury Marquis. V8 4.6L. I have a Car MD which I used to determine the engine light on codes The codes refer to changing the #1 igniter and all spark plugs. My question is which is the...


You change spark plugs every 60,000 miles or
3 years

Car MD etc ,doesn't tell you to change plugs,that is silly

They wear,but never fail to fire.

Have you even looked over the task at hand?

You don't have to remove anything but the plugs,
unless you have COP ignition,then you remove the
coil first.

#1 is on the front right side of a ford
Doesn't matter how the engine is positioned

Jul 22, 2011 | 2004 Mercury Grand Marquis

1 Answer

Where are the spark plugs located in a 2003 grand marquis


They are located on top of the heads next to the intake. Each cylinder has a Coil on it held down with a 7mm bolt

Apr 26, 2011 | 2003 Mercury Grand Marquis

2 Answers

Where are the spark plugs located on a 2000 Mercury grand Marquis?


There are eight COPs (coil-on-plugs) to remove. Using a 7mm or 9/32" socket, remove each bolt securing each COP to the intake manifold on top of the engine. Remove all eight COPs, and the spark plugs are underneath. When replacing the spark plugs, use only the proper Ford/Motorcraft plugs, even if they cost twice as much as the aftermarket ones. You will avoid further headaches this way. Hope this helps.

Mar 30, 2010 | 2000 Mercury Grand Marquis

2 Answers

Own a 1997 mercury grand marquis. went to change the spark plugs and didn't see the normal rotor, sparkplugs, etc. where are the plugs located and how do i change them


The 4.6 does not have an traditional distributor. This year engine should have two coil packs located on the front of each valve cover. Each coil pack controls four cylinders. Some of the plug wires will cross over the front of the engine in a wire loom on top of the alternator. The spark plugs are located down in the intake manafold. they run beside the fuel rail on each side of the intake manafold where it joins to each head. You will need an extention at least 8 to 10 inches long to get at the spark plugs. The plug wire fit snuggly into the intake manafold and have an extention on them that connects to the spark plug.

Jan 16, 2010 | 1997 Mercury Grand Marquis

1 Answer

Location of spark plugs 2000 grand marquis


the plugs are down inside the valve covers under the ignition coils, there is one coil fo each spark plug

Oct 14, 2009 | 2000 Mercury Grand Marquis

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