Question about 2003 Mercury Grand Marquis

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Cylinder layout diagram

Need firing order so i can change spark plugs

Posted by Anonymous on

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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emissionwiz
  • 76118 Answers

SOURCE: 95 mercury grand marquis firing order of spark plug wires

go this page for firing order, u have 4.6 L V8
http://www.moddedmustangs.com/reference/firing-orders.php

Posted on Feb 16, 2009

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c17hydro
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SOURCE: firing order of 1998 mercury mystique

Here's the firing order:


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Posted on Mar 22, 2009

  • 740 Answers

SOURCE: not firing right on no.4

First check plug and make sure the right plug for this vehicle,make sure that the heat rating for this plug is correct. Your problem could be a wrong heat rating plug been installed. Also make sure that the misfire is due to a bad plug and NOT a bad injector or injector wiring or uneven compression or even bad coil. Check injector wiring and make sure it not shorting or broken. To check injector pulse use a NOID light can be bought at almost any auto parts store like Auto-zone etc. Also compression can be checked with compression guage. A rule of thumb to go by is if any cylinder has more than 10 PSI in difference in compression there is a problem like a burnt valv etc. Here is a n example cyl# 1 170psi cyl#2 176 psi cyl#172psi cyl# 4 150 psi, there is a problem with cylinder # 4 and will cause a miss from cylinder #4. Good luck and thank for using FIX YA

Posted on Mar 26, 2009

  • 1757 Answers

SOURCE: I mixed up the fireing spark plug cables on my 6

On the 2002 Mercury Cougar
For the 2.5L V6 DOHC:

Firing Order:
1-2-3-4-5-6

Cylinders:
.....(back)
1......2......3
4......5......6
.....(front)

Ignition Coil:
.(back)
4...6...5
3...2...1
.(front)

Posted on Mar 24, 2010

  • 1757 Answers

SOURCE: digram of firing order for spark plugs, for 1991 mercury sable

For the 1991 Mercury Sable 3.8L V6:

Firing Order:
1-4-2-5-3-6
Cylinders:
.....(back)....
|...1...2...3...|
...................
|...4...5...6...|
......(front)
Distributor:
....(back)
......6..(+)-screw
1..........3
4..........5
(+)...2
....(front)

Let me know if this helped, or if you have additional information or questions. Feel Free to contact me at FixYa.com!

Posted on Apr 19, 2010

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I need to know the firing order and the no 1 plug location on my minivan


Here is a diagram of the cylinder layout and the firing order. Position of coil pack may vary by model year.
Firng order 1-4-2-5-3-6



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I have a 93 ford mustang 4 cylinder 2.3 liter engine and need the wiring diagram for the spark plug wires. this is confusing because it is a 4 cylinder with 8 spark plugs and my brother didnt mark them...


The firing order and spark plug wiring layout is depicted in over-the-counter repair manuals like the Haynes for '87-93 Ford Mustangs. If you can't spend the ~$20 on one of those (available at Pep Boys, Autozone, eBay, Amazon, etc) you should be able to check one out from your local library.

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Here is a picture of the cylinder layout and firing order for your Montero V6 is 1 2 3 4 5 6.


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I need the layout numbers of spark plugs on block and the firing order for a 1951 dodge pickup


I'm guessing that you have a 6 cylinder, because that is the only engine my book shows for 1951. The cylinders would be numbered in order from front to back. The firing order is 1-5-3-6-2-4. Hope this helps.

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Below is a diagram of the cylinder layout and the firing order.

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For the 1989 GMC Suburban I do not know if you have the 5.7L or 7.4L, however both have the same firing order, cylinder layout and distributor layout:

Firing Order:
1-8-4-3-6-5-7-2

Cylinders:
.......(back)........
|..8..............7..|
|..6..............5..|
|..4..............3..|
|..2..............1..|
........(front)

Distributor Connections:
.....(back)
(+) 6.....5
3...............7
4...............2
.....8.....1 (+)
.....(front)
Rotation:
Clockwise

Let me know if this helped, or if you have additional information or questions. Feel Free to contact me at FixYa.com!

Aug 27, 2010 | 1989 GMC Suburban

2 Answers

I took of*** my spark plug wires working on my small block 350 pickup and I don't remember the the firing order to put the new wires back on. Is there a diagram anywhere or is it even that difficult to...


Next time number each lead before you remove it and no. the dissy cap as well

The firing order, which should be cast into the intake manifold, for the chevy small block V8 is 1-8-4-3-6-5-7-2. The firing order is the numerical sequence in which the spark plugs are fired. The insertion position of each spark plug wire around the circumference of the distributor cap can be found according to a clock face. The insertion sequence determines the firing order. The firing order is followed clockwise around the distributor cap starting from the 6:30 position with the 6:30 position being the number one cylinder spark plug wire.
On classic chevy small block engines that use ignition breaker points instead of electronic ignitions, the number one cylinder is the one immediately clockwise of the small metal sash cover on the distributor cap. The firing order starts here. There is no sash cover on the distributor cap for GM HEI electronic ignitions, and the firing order is the same, but starting at the 5:30 position.
The firing order makes sense if you know how the cylinders are numbered. The number one cylinder is the front most on the drivers side and 2 being the front most on the passenger side. From front to back, the cylinders are odd numbered on the drivers side, and even numbered on the passenger side.
See the diagram; Click to open a printable larger image in a new window. The firing order starts with the number one cylinder. We would connect the number one spark plug wire to the distributor cap terminal in the 6:30 position. distributor.pngSince the next cylinder in the firing order is 8 (passenger side rear), we connect the number 8 spark plug wire to the next distributor cap terminal (approximately 7:30 position) in the clockwise direction from number one. You need to be sure you continue the firing order in the clockwise direction around the chevy small block distributor cap from the last installed spark plug wire. Setting the rest of the firing order is just a matter of repetition. Be sure to count the spark plugs from front to back on each side of the motor to identify the correct cylinder number in the firing order.

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Firing Order diagram for 2006 Ford Explorer


Hope this helps. The ignition coil:
  • changes low-voltage pulses from the PCM to high-voltage pulses.
  • fires 2 spark plugs simultaneously.
  • has 3 transformers.
    • One transformer fires the spark plugs for cylinders 1 and 5
    • One transformer fires the spark plugs for cylinders 2 and 6
    • One transformer fires the spark plugs for cylinders 3 and 4
Spark plug wires:
  • carry high-voltage pulses from the ignition coil to the spark plugs.
The spark plugs:
  • change high-voltage pulses to spark at the gap, which ignites the fuel and air mixture.
The firing order is 1-4-2-5-3-6.

69efa96.jpg

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2 Answers

Firing Order Diagram


the firing order is
1-6-5-4-3-2

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