Question about 2004 Mercury Grand Marquis

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

Im replacing the passenger side cylinder head because of badly stripped out spark plug threads. So far ive loosened the bolts but there is a housing in the way of lifting the valve cover off.

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  • 47 Answers

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

Posted on Nov 04, 2012

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  • 2 Answers

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Posted on Jan 02, 2017

  • 1757 Answers

SOURCE: 2002 mercury grand marquis spark plug wire diagram

For the 4.6L V8:
Firing Order:
1-3-7-2-6-5-4-8
Cylinders:
(back of engine)
4-----------8
3-----------7
2-----------6
1-----------5
(front of engine)

Let me know if this helped...

Posted on Mar 16, 2010

  • 1986 Answers

SOURCE: how to remove the egr valve on a 1993 mercury

Jack up the passengers side of the car, get a 1 1/16" wrench break loose the fitting to the manifold, hold a 24 mm wrench on the fitting to the manifold, loosen the flare nut on the tube. Then using a 10 mm socket, about 2 inches long, loosen the two nuts under the EGR valve, then take the both out, remove the vacuum hose to the top of the EGR valve, and the sensing line from the small tube. then completely remove the flare nut from the orifice fitting on the manifold. BE CAREFUL with the tube, do not bend it or break it, you may find PB blaster useful the night before on a cold engine loosen these fittings. Once the EGR valve is out, remove the orifice out of the manifold, remove the tube from the EGR valve, again be careful, mark the tube to EGR position before pulling this off, because the top fitting to EGR needs tightened before you put it back in, it will make the lower fitting difficult if you do not line it up right, dry fitting from under the car is helpful, mark it, and then tighten the top. Clean out the tube, be careful not to bend the little tube, either inside or outside the larger tube, it sticks out inside. Clean the orifice, clean the manifold face carefully not to score it, check for blockage there too. Apply anti-seize to the orifice, put it back in the manifold, then apply anti-seize to the bolts for the EGR valve, and the flare nuts both ends. Apply some silicon to the EGR valve face, just enough to hold the gasket in place, put the new gasket on, start the bolts two turns in the gasket, it will hold them in place, then start them in the manifold, then start the lower flare fitting to orifice, tighten the top bolts, and then the flare nut, connect the vacuum line, connect the sensing line. I just recently did this process, it works, if have other EGR issues, the valve is the easiest.

Posted on Oct 13, 2009

  • 56 Answers

SOURCE: what is the spark plug gap specification for a

go to or call an auto pARTS STORE they can tell you the plug gap.

Posted on Jan 24, 2010

  • 58 Answers

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

  • 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

Show engine spark plug cylinders on 2000 mercury grand marquis 4.6l


Firing order 1-3-7-2-6-5-4-8 Cylinder locations: Passenger side starting at front of engine and going to the rear: 1-2-3-4 Driver side front to rear: 5-6-7-8 This actually for a 1996 model, but I should imagine it is the same.

May 20, 2012 | 2003 Mercury Grand Marquis

1 Answer

In what numerical order are the spark plugs on a 1989 mercury grand marquis 5.0


the sequence is on the passenger front plug is cylinder 1 then it goes 2,3,4 as you go to the rear of the motor.on the drivers side it goes from front to back 5,6,7,8

Sep 18, 2011 | 1989 Mercury Grand Marquis

1 Answer

I hav 2000 grand marqius ls - When I changed spark plog thei found engine oil on it particularly cylinder No. 3 and 4 that the car was Shaking before I change the spark


When you get oil into the cylinders that are side by side, you may have a bad head gasket or bad stem seals on the valves. When all 4 cylinders on that side of the engine are oil-covered you can have additional problems like bad piston rings.

You should have a compression test to determine what the condition of the rings is before removing a head. If the compression is good, a good mechanic may be able to change the Valve seals without a complete teardown. If not, the problem must be fixed by pulling the bad head.

Jun 25, 2011 | 2000 Mercury Grand Marquis

1 Answer

1999 mercury grand marquis occasionally overheats, leaks around radiator cap, makes gurgling noise on passenger side. Have replaced heater core, water pump, thermostat, hoses,& radiator cap.


Check the antifreeze for oil, pull your dipstick out, see if antifreeze is in oil or smells sweet or over full, sounds like you may of a bad head gasket. You can also check this by having a compression test done on the cylinders.

Feb 18, 2011 | 1999 Mercury Grand Marquis

2 Answers

Valve cover gasket, how to replace?


Rocker Arm (Valve) Cover REMOVAL & INSTALLATION 2.3L 4-Cylinder Engines
  1. Disconnect the negative battery cable.
  2. Label and remove the spark plug wires.
  3. Remove the attaching bolts for the valve cover.
  4. Remove the valve cover from the cylinder head. If necessary, lightly tap the valve cover with a soft hammer to aid in removal. To install:
  5. Thoroughly clean the valve cover and cylinder head gasket mating surfaces.
  6. Install the valve cover on the cylinder head using a new gasket.
  7. Tighten the valve cover bolts to 14 ft. lbs. (20 Nm) in a crisscross pattern.
  8. Install the spark plug wires.
  9. Connect the negative battery cable.
  10. Start the engine and check for leaks. Fig. 1: Valve cover and gasket assembly 90953g12.gif
2.8L 6-Cylinder Engine
  1. Disconnect the negative battery cable.
  2. The following steps are necessary if your car has A/C and if you are removing the passenger side valve cover, if you do not need to remove the passenger side valve cover, skip them.
    1. Remove the A/C compressor belt and the compressor from the mounting bracket located on the passenger side of the engine. Do not remove the lines from the compressor.
    2. Place the compressor with the lines attached on the passenger side front shock tower and secure.
    3. Remove the compressor bracket.
  3. Remove the air cleaner-to-throttle body hose.
  4. Label and remove all necessary electrical and vacuum connections.
  5. Remove the attaching bolts for the valve cover(s).
  6. Remove the valve cover(s) from the cylinder head(s). If necessary, lightly tap the valve cover with a soft hammer to aid in removal. To install:
  7. Thoroughly clean the valve cover(s) and cylinder head gasket mating surfaces.
  8. Install the valve cover(s) on the cylinder head(s) using new gaskets.
  9. Tighten the valve cover bolts to 11 ft. lbs. (15 Nm) in a crisscross pattern.
  10. Install all necessary electrical and vacuum connections.
  11. Install the air cleaner assembly.
  12. Install the A/C bracket (if removed).
  13. Install the A/C compressor and belt (if removed).
  14. Connect the negative battery cable.
  15. Start the engine and check for leaks.
2.3L and 2.4L 5-Cylinder, and 2.9L 6-Cylinder Engines The 2.3L and 2.4L 5-cylinder, and 2.9L 6-cylinder engines have a two-piece cylinder head, the upper half and the lower half. The upper half is basically the same as a valve cover, except that it incorporates the bearing caps for the camshafts into the underside.
  1. Disconnect the negative battery cable.
  2. Remove the spark plug access cover.
  3. Label and remove the ignition coils and vent hoses or the distributor cap and wires if equipped.
  4. Check the cam alignment before removing the cylinder head.
  5. Remove the bolts attaching the upper cylinder head.
  6. Remove the upper cylinder head, lightly tap with a soft hammer if necessary. To install:
  7. Thoroughly clean the upper and lower cylinder head gasket mating surfaces.
  8. Apply liquid sealing compound to the upper cylinder head mating surface. WARNING
    Use a roller or your finger to spread sealant, do not use an excessive amount of sealant, or the oil passages could become clogged.
  9. Place the upper cylinder head onto the lower cylinder head.
  10. Check the cam alignment before tightening the cylinder head.
  11. Install Volvo tool number 5454 or equivalent to the upper cylinder head.
  12. Tighten the nut on the tools to seat the upper cylinder head.
  13. Tighten the upper cylinder head bolts, beginning from the center out to 13 ft. lbs. (17 Nm).
  14. Install the ignition coils and hoses or the distributor cap and wires.
  15. Install the spark plug access cover.
  16. Connect the negative battery cable.
  17. Start the vehicle and check for leaks. Fig. 2: Remove the clamp and detach the vent hose 90953p66.jpg
    Fig. 3: Remove the spark plug cover and the plug wires or ignition coils to access the retaining bolts 90953p80.jpg
    Fig. 4: Remove the retaining bolts 90953p72.jpg
    Fig. 5: A light tap with a soft-faced hammer is usually required to loosen the valve cover 90953p81.jpg
    Fig. 6: Carefully lift the upper cylinder head up and off the lower section. Note the integral camshaft bearing caps in the casting 90953p82.jpg
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Jan 29, 2011 | 1999 Volvo S70

1 Answer

Spark plug tube striped spark plug jumped out of tube


The issue seems to be related to the spark plug threads. The spark plug is either not tightened down or the threads are stripped, and during the compression stroke when pressure is applied inside the combustion chamber, the pressure leaks thru the spark plug threads and blows off the spark plug boot. If the spark plug is not tightened and the threads are ok, then tightening the plug will resolve this issue. If the spark plug threads are damaged, then the threads will need to be repaired, and will require the cylinder head to be removed to repair the stripped threads. Taking the cylinder head off requires the engine's top end to be ripped apart and re-assembled....big job.

Nov 26, 2010 | 2004 Dodge Stratus

2 Answers

Torque specification on a 2003 alero cylinder heads 3.4 liter


3.4L Engine To Remove:
  1. Remove the lower intake manifold.
  2. Remove the exhaust crossover pipe.
  3. If removing the right cylinder head, remove the catalytic converter from exhaust manifold.
  4. If removing the left cylinder head, remove the engine oil dipstick and tube.
  5. Remove the rocker arms and pushrods.
  6. Remove and discard the cylinder head bolts.
  7. Remove the cylinder head.
  8. Clean the mating surfaces on the following items:
    • Cylinder head
    • Cylinder block
    • Intake manifold
  9. Clean the cylinder block bolt threads.
NOTE: During disassembly, keep the valve train components together for proper location during assembly.
To Install:
NOTE: Coat the cylinder head bolt threads using thread sealer.
  1. If removed, install the following components:
    • Exhaust manifold
    • Accessory studs
    • Spark plugs
  2. Place the cylinder head gasket in position over the dowel pins. Ensure that the THIS SIDE UP note is showing.
  3. Install the cylinder head. Cylinder head torque sequence ’99-‘00 gmpc_v6_14.gif

    Cylinder head torque sequence ’01-05 gm-03-34-682.gif

  4. Install the new cylinder head bolts.
    • Tighten the cylinder head bolts a first pass to 44 ft lb (60 Nm).
  5. Tighten the cylinder head bolts in sequence an additional 95 degrees.
  6. Install the intake gasket.
  7. Install the pushrods and rocker arms.
  8. Raise and support the vehicle.
  9. Install the catalytic converter and dipstick tube and indicator if removed.
  10. Lower the vehicle.
  11. Install the exhaust crossover pipe.
  12. Install the intake manifolds.
  13. Connect negative battery cable.
  14. Fill the cooling system.

Jul 03, 2010 | 2003 Oldsmobile Alero

2 Answers

Miss fire on #3cyl. where is #3 located


Number 3 is the 3rd plug back on the passenger side. Coils are notorious for going bad, I would recommend replacing the spark plugs, while you are there. Use Auto Lite, or Motorcraft Platinum Spark plugs only.

May 09, 2010 | 1996 Mercury Grand Marquis

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