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Firing order please?

Tiny
VIDEO
  • MEMBER
  • 2001 BUICK CENTURY
Six cylinder 3.1L engine two wheel drive automatic.

I just changed spark plugs and my car now is in rough idle and sputtering. I used Autolite platinum. I want to know the spark plug order. I numbered my wires and I may have messed it up. Is it -2-3 along the fire wall with 1 being on the passenger side? And 4-5-6 in the front with 6 being on the passenger side. I assume that is to correspond with the numbers on the distributor cap.

Last time I changed plugs I changed wires.
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Tuesday, August 24th, 2010 AT 9:24 AM

23 Replies

Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
The part that says front in the diagram is passenger side. You have a coil pack, no distributor, correct?


https://www.2carpros.com/forum/automotive_pictures/170934_century_firing_order_1.jpg

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Thursday, October 12th, 2017 AT 3:00 PM
Tiny
VIDEO
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  • 16 POSTS
JDL,
Thanks for the diagram. I had two and four switched. Yes, I have a coil pack. I mistakenly said distributor, also working on my old gas tractor.
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Thursday, October 12th, 2017 AT 3:00 PM
Tiny
KYLE DUBY
  • MEMBER
  • 1 POST
  • 2000 BUICK CENTURY
  • 120,000 MILES
I need a diagram and firing order for a my car listed above. I am not completely sure they were right to begin with, and I cannot find my owners manual. I just want to make sure.
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Thursday, November 26th, 2020 AT 10:17 AM (Merged)
Tiny
WRENCHTECH
  • MECHANIC
  • 20,761 POSTS
The firing order is 5 2 3 6 4 1

https://www.2carpros.com/images/external/84817708.gif

https://www.2carpros.com/images/external/148709066.gif
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Thursday, November 26th, 2020 AT 10:17 AM (Merged)
Tiny
DISVNVET
  • MEMBER
  • 6 POSTS
  • 2000 BUICK CENTURY
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 90,000 MILES
Have a century with 3.1. OBD-II says #6 cyl misfire. Looking at the engine from front of car, which cyl is #6.

Towards the firewall, the plug wire is broken. Again, it is the firewall side of engine, furtherest on the left near alternator.

I think this is #5 so why is it showing #6 misfire. A diagram would help.

Since it is not my car, I don't want to buy a manual.
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Thursday, November 26th, 2020 AT 10:17 AM (Merged)
Tiny
DOCFIXIT
  • MECHANIC
  • 18,828 POSTS
Fire wall side front to back 1-3-5. Radiator side front to back 2-4-6.
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Thursday, November 26th, 2020 AT 10:17 AM (Merged)
Tiny
XAVIERTORRES
  • MEMBER
  • 1 POST
  • 1999 BUICK CENTURY
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 107,129 MILES
Firing order for 99 buick century
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Thursday, November 26th, 2020 AT 10:17 AM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Hello,

Here is the engine ignition Firing Order 1-2-3-4-5-6 Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.
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Thursday, November 26th, 2020 AT 10:17 AM (Merged)
Tiny
SAM.NEVE
  • MEMBER
  • 1 POST
  • 1999 BUICK CENTURY
Electrical problem 6 cyl Two Wheel Drive Automatic 100K+ miles

I was replacing the plug wires and replaced them. The car is not running well at all now and I fear to drive it.
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Thursday, November 26th, 2020 AT 10:17 AM (Merged)
Tiny
2CARPRO JACK
  • MECHANIC
  • 11,533 POSTS
Firing order 3.8.


https://www.2carpros.com/forum/automotive_pictures/1639_38_1.jpg



firing order 3.1, 3.4.


https://www.2carpros.com/forum/automotive_pictures/1639_3134_1.jpg

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Thursday, November 26th, 2020 AT 10:17 AM (Merged)
Tiny
MARIE HARTJE
  • MEMBER
  • 2 POSTS
  • 1993 BUICK CENTURY
  • 3.3L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 120,000 MILES
Spark plug wires may have been crossed.
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Thursday, November 26th, 2020 AT 10:18 AM (Merged)
Tiny
OBXAUTOMEDIC
  • MECHANIC
  • 3,711 POSTS
Hello,

Below is picture of firing order.

Hope this helps.

Mark
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Thursday, November 26th, 2020 AT 10:18 AM (Merged)
Tiny
MIGMANR
  • MEMBER
  • 1 POST
  • 1993 BUICK CENTURY
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 198,000 MILES
What is the firing order and which side is number 1 plug on?
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Thursday, November 26th, 2020 AT 10:18 AM (Merged)
Tiny
LEGITIMATE007
  • MECHANIC
  • 5,121 POSTS
Firing order and wire order for buick 3.3 v6


https://www.2carpros.com/forum/automotive_pictures/88091_buick_33_1.jpg

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Thursday, November 26th, 2020 AT 10:18 AM (Merged)
Tiny
LAKEFRONTLIVIN
  • MEMBER
  • 1 POST
How come the #4 plug wire is going to cylinder #2. I hope I'm reading the diagram right?
Thanx
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Thursday, November 26th, 2020 AT 10:18 AM (Merged)
Tiny
ZACKMAN
  • MECHANIC
  • 4,202 POSTS
Try one of these.

Late 92 (sometimes known as 1993)


https://www.2carpros.com/forum/automotive_pictures/55316_92centuryfiring_1.jpg



1993


https://www.2carpros.com/forum/automotive_pictures/55316_93centuryfiring_1.jpg

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Thursday, November 26th, 2020 AT 10:18 AM (Merged)
Tiny
DENEANLP
  • MEMBER
  • 3 POSTS
  • 1992 BUICK CENTURY
Engine Mechanical problem
1992 Buick Century 6 cyl Two Wheel Drive Automatic

I need a engine diagram and firing order for the 1992 Buick Century Special edition.
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Thursday, November 26th, 2020 AT 10:18 AM (Merged)
Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
Hello, I came across this.


https://www.2carpros.com/forum/automotive_pictures/170934_buick_century_special_1.jpg

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Thursday, November 26th, 2020 AT 10:18 AM (Merged)
Tiny
DENEANLP
  • MEMBER
  • 3 POSTS
  • 1992 BUICK CENTURY
Engine Mechanical problem
1992 Buick Century 6 cyl Two Wheel Drive Automatic

which is the Number one spark plug when you are standing in front of the car. Wires were pulled off my car and I don't which is number one or two or six. And what is the firing order.
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Thursday, November 26th, 2020 AT 10:18 AM (Merged)
Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
3.3 litre engine


https://www.2carpros.com/forum/automotive_pictures/170934_33_litre_engine_1.jpg



Firing order is 165432.
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Thursday, November 26th, 2020 AT 10:18 AM (Merged)

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