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Diagram of the firing order

Tiny
PACHYAUTO63
  • MEMBER
  • 1999 FORD EXPLORER
  • 4.0L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 170,000 MILES
Could you please send me a diagram of the firing order?
Friday, July 13th, 2018 AT 1:40 PM

32 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good evening.

Firing order below and attached is cylinder identification.

Roy

V6 Firing Order: 1 4 2 5 3 6
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Friday, October 9th, 2020 AT 9:37 AM
Tiny
BRANDON GREER
  • MEMBER
  • 1 POST
  • 1999 FORD EXPLORER
  • 4.0L
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 137,400 MILES
What is the firing order?
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Friday, October 9th, 2020 AT 9:39 AM (Merged)
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
The firing order is in a manual and sometimes cast on intake if cast aluminum. But if plastic I will send it in picture. There are two different VIN numbers for plug wire placement. See pictures.
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Friday, October 9th, 2020 AT 9:39 AM (Merged)
Tiny
RANDYCRITZ
  • MEMBER
  • 2 POSTS
  • 1998 FORD EXPLORER
  • 4.0L
  • 6 CYL
  • 2WD
  • 2,001,000 MILES
I just bought this vehicle (Sport model). The truck has a miss in it. It will start right up, but idles rough. The truck has sit up for 2 years. I replaced the coil, and the fuel pump. The wires look new, and the only thing I can think of, is the firing order is off, or the plugs maybe bad from sitting. I would appreciate any input. Thanks. Randy.
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Friday, October 9th, 2020 AT 9:39 AM (Merged)
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good afternoon,

Yes, I would replace the plugs but at the same time, do a compression test to be sure the valves are all working.

https://www.2carpros.com/articles/how-to-test-engine-compression

Roy
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Friday, October 9th, 2020 AT 9:39 AM (Merged)
Tiny
RANDYCRITZ
  • MEMBER
  • 2 POSTS
Thanks. I do that.
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Friday, October 9th, 2020 AT 9:40 AM (Merged)
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
You are welcome.

Keep us updated.

Roy
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Friday, October 9th, 2020 AT 9:40 AM (Merged)
Tiny
350VORTECK
  • MEMBER
  • 1 POST
  • 1998 FORD EXPLORER
  • V8
  • 2WD
  • AUTOMATIC
  • 125,698 MILES
What is the firing order and what are the cylinders by number(1 thru 8)
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Friday, October 9th, 2020 AT 9:40 AM (Merged)
Tiny
BMRFIXIT
  • MECHANIC
  • 19,053 POSTS
This is what i have
let me know


https://www.2carpros.com/forum/automotive_pictures/99387_explor_2.jpg

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Friday, October 9th, 2020 AT 9:40 AM (Merged)
Tiny
JLVANZANT
  • MEMBER
  • 6 POSTS
  • 1997 FORD EXPLORER
Engine Performance problem 6 cyl Four Wheel Drive Automatic 178k miles

I paid a guy to tune up my explorer. Which he ripped me off. Instead of putting the brand new plug wires on that I bought for my explorer, he put used plug wires from a completely different vehicle on, and did not get the firing order correct. I now have the correct plug wires, but I don't know the correct firing order. My Explorer has a 4.0l SOHC V6 engin.
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Friday, October 9th, 2020 AT 9:40 AM (Merged)
Tiny
BLUELIGHTNIN6
  • MECHANIC
  • 16,542 POSTS
Hello
Below is the info. you requested.

1997 Ford Explorer 4WD
4.0 liter SOHC V-6 VIN "E"


https://www.2carpros.com/forum/automotive_pictures/261618_92722991_1.gif



Hope this helps..
Thanks for using 2carpros.com!
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Friday, October 9th, 2020 AT 9:40 AM (Merged)
Tiny
JLVANZANT
  • MEMBER
  • 6 POSTS
Is that the same for the ignition coil?
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Friday, October 9th, 2020 AT 9:40 AM (Merged)
Tiny
BLUELIGHTNIN6
  • MECHANIC
  • 16,542 POSTS
The smaller picture is the ignition coil.
Below I have highlighted and labeled each one..sorry for the confusion


https://www.2carpros.com/forum/automotive_pictures/261618_Noname_109.jpg



Hope this helps..
Thanks for using 2carpros.com!
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Friday, October 9th, 2020 AT 9:40 AM (Merged)
Tiny
JLVANZANT
  • MEMBER
  • 6 POSTS
Yes it does. My next dumb question is. On the diagram of the ignition coil. Which side of the diagram is the connection from the ignition module located. I really miss the days of the distributor cap and rotor button.
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Friday, October 9th, 2020 AT 9:40 AM (Merged)
Tiny
BLUELIGHTNIN6
  • MECHANIC
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Ah, no such thing as a dumb question. In fact, this is a really good question, hehe. I think the picture below will help you out. Just in case you can't see the writing on the wires, the 3 wires on the left of the picture are 1 (starting at front where hand is) , 2 and 3. The wires on the right side of picture are 5 (starting at the front again) , 6 then 4.


https://www.2carpros.com/forum/automotive_pictures/261618_0900c1528018eb4a_1.jpg



You should be able to find the connector from this picture.

Thanks for using 2carpros.com!
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Friday, October 9th, 2020 AT 9:40 AM (Merged)
Tiny
JLVANZANT
  • MEMBER
  • 6 POSTS
That helps alot. On my ignition coil, the connector is on the left side under the #2 wire
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Friday, October 9th, 2020 AT 9:40 AM (Merged)
Tiny
BLUELIGHTNIN6
  • MECHANIC
  • 16,542 POSTS
Yeah, I think I can make it out in the above picture as well. Sounds like you have it figured out now.

Good luck and if you need any further assistance just let me know. :)

Thanks for using 2carpros. Com !
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Friday, October 9th, 2020 AT 9:40 AM (Merged)
Tiny
JLVANZANT
  • MEMBER
  • 6 POSTS
Think you. I hope it does. The engine is miss firing on cylinders 2, 3, 4, 5, and 6. The truck has no power and is dranking gas like its going out of style. If this doesn't work I'm going to have a compression test done. Then I've gotta find where I'm losing coolant. Its not leaking under the truck and its not in my floorboard, but I'm dumping 2 gallons every 4 days into the radiator.
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Friday, October 9th, 2020 AT 9:40 AM (Merged)
Tiny
BLUELIGHTNIN6
  • MECHANIC
  • 16,542 POSTS
Coolant leaking with no signs huh. You may want to check out your oil level. Is it milky looking? Over filled? I believe you may have a blown head gasket or manifold gasket. This will let coolant into the combustion chambers and cause misfireing. It will also cause the coolant to leak without a noticeable sign (drips, wet spots.). Sounds like you should go ahead and get it pressure tested. May also be a cracked head, but this will usually result in smoke as well.

Thanks for using 2carpros. Com!
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Friday, October 9th, 2020 AT 9:40 AM (Merged)
Tiny
JLVANZANT
  • MEMBER
  • 6 POSTS
Ok, now you're just scaring me. Lol
But I've been thinking I might have a blown head gasket for awhile. Think you again
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Friday, October 9th, 2020 AT 9:40 AM (Merged)

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