Engine firing order please?

Tiny
ABUILDTRUCKS
  • MEMBER
  • 2011 CHEVROLET SILVERADO
  • V8
  • 4WD
  • AUTOMATIC
What is the firing order?
Sunday, January 9th, 2011 AT 3:25 AM

24 Replies

Tiny
BLUELIGHTNIN6
  • MECHANIC
  • 16,542 POSTS
Here is the engine firing order for both diesel and gas engines. Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.
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Wednesday, February 2nd, 2011 AT 11:30 PM
Tiny
CHUCKREN
  • MEMBER
  • 1 POST
  • 2000 CHEVROLET SILVERADO
I need to know the engine setup to place the plug wires in the correct place.
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Sunday, August 9th, 2020 AT 12:18 PM (Merged)
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,961 POSTS
I have found this firing order for you (below). Please let us know if you need anything else to get the problem fixed.
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Sunday, August 9th, 2020 AT 12:18 PM (Merged)
Tiny
LAVAFLOZ
  • MEMBER
  • 3 POSTS
  • 1998 CHEVROLET SILVERADO
I am looking for a diagram for the plug wires to the distributor cap connections. I know the firing order is 1-8-4-3-6-5-7-2. While replacing the (crab type) cap, rotor, plugs and wires, I messed up bad by not labeling the wires on the cap. The engine is a Vortek 5.7L 350. It is a K1500 4X4 automatic. Any help you can provide would be greatly appreciated. Thank you
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Sunday, August 9th, 2020 AT 12:19 PM (Merged)
Tiny
OBXAUTOMEDIC
  • MECHANIC
  • 3,711 POSTS
Hello,

Here is the spark plug to distributor wiring diagram.


https://www.2carpros.com/forum/automotive_pictures/188069_98k1500fireorder_1.jpg



Larger version below

Please let us know if you need anything else to get the problem fixed.

Cheers
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Sunday, August 9th, 2020 AT 12:19 PM (Merged)
Tiny
LAVAFLOZ
  • MEMBER
  • 3 POSTS
Thank You. Just to be sure, I connected wire one to cap position one, and so on. Is this correct? The service engine light was illuminated prior to this. I hooked up my Digital OrbitII Code Reader, and it displayed P0300 - Random/Multiple Cylinder Misfire Detected. This was before I changed the wires per your diagram. I believe I need to figure out how to clear the code, and scan it again. Lastly, I noticed a strong gas smell when I fired it up, and a grayish/black smoke came out of the tailpipe. If you think I should do something else, please let me know, otherwise, I appreciate your response and help. Aloha from Hawaii!
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Sunday, August 9th, 2020 AT 12:19 PM (Merged)
Tiny
OBXAUTOMEDIC
  • MECHANIC
  • 3,711 POSTS
Yes, just match up the number 2 to 2 3 to 3 etc. The smell of gas may just be do to the misfire, so complete the plug wire and see what happens. Your scanner may have a way to clear the codes check the manual for it. Post finding here.
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Sunday, August 9th, 2020 AT 12:19 PM (Merged)
Tiny
LAVAFLOZ
  • MEMBER
  • 3 POSTS
Code cleared, no new codes. Gas smell gone, and no smole from tailpipe. All in all, everything works great! Thanks for the help! :)
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Sunday, August 9th, 2020 AT 12:19 PM (Merged)
Tiny
WATERLOVER
  • MEMBER
  • 1 POST
Why does the number pattern on the cap not match the firing order?
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Sunday, August 9th, 2020 AT 12:19 PM (Merged)
Tiny
BOYKO68
  • MEMBER
  • 1 POST
Does the diagram also apply to the 5.0l Vortec? I have a 1999 k1500 with the 305 that is putting out the same code, so if the diagram is also for the 5.0 Vortec I will check my plug wires. Thanks in advance.
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Sunday, August 9th, 2020 AT 12:19 PM (Merged)
Tiny
BLUEROSEZ
  • MEMBER
  • 1 POST
  • 1998 CHEVROLET SILVERADO
Engine Mechanical problem
1998 Chevy Silverado V8 Two Wheel Drive Automatic

Could you give me the firing order for this truck? Because I put spark plug wires on wrong.
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Sunday, August 9th, 2020 AT 12:19 PM (Merged)
Tiny
TEDSKI
  • MEMBER
  • 3 POSTS
Here is the firing order for your truck.

2, 4, 6, 8, Right Bank on the top.

1, 3 5, 7, Left Bank on the bottom.

The Distributor rotation on the right is 8 2 4 6 on on the left is 1 7 3 5.

Hope this helps you.
Tedski new person to this site.
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Sunday, August 9th, 2020 AT 12:19 PM (Merged)
Tiny
JONLEE17
  • MEMBER
  • 1 POST
  • 1998 CHEVROLET SILVERADO
  • V8
  • 4WD
  • AUTOMATIC
  • 173,000 MILES
I just changed the spark plugs, wires and battery in my pickup, now it won't start. I think I got the firing order wrong can you help?
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Sunday, August 9th, 2020 AT 12:19 PM (Merged)
Tiny
BLUELIGHTNIN6
  • MECHANIC
  • 16,542 POSTS
Sure.

For the 4.3L engines:
1-6-5-4-3-2 distributor rotation: Clockwise.


https://www.2carpros.com/forum/automotive_pictures/261618_0900c1528008ee21_1.jpg



For the 5.0L, 5.7L and 7.4L engines:
1-8-4-3-6-5-7-2 distributor rotation: Clockwise.


https://www.2carpros.com/forum/automotive_pictures/261618_2_4.jpg



Hope this helps.
Thanks for using 2carpros.com!
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Sunday, August 9th, 2020 AT 12:19 PM (Merged)
Tiny
ANFK
  • MEMBER
  • 1 POST
  • 1998 CHEVROLET SILVERADO
  • V8
  • 4WD
  • AUTOMATIC
  • 210,000 MILES
What is the firing order for this truck? Thanks!
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Sunday, August 9th, 2020 AT 12:19 PM (Merged)
Tiny
MASTERTECHTIM
  • MECHANIC
  • 4,749 POSTS
I do not know off the top of my head, but look real close to the distributor cap it is marked right on it. The drivers side front cylinder is number one and pass front cylinder is number two. So drivers side is 1-3-5-7 and passenger side 2-4-6-8.
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Sunday, August 9th, 2020 AT 12:19 PM (Merged)
Tiny
STEX73
  • MEMBER
  • 2 POSTS
  • 1997 CHEVROLET SILVERADO
Engine Mechanical problem
1997 Chevy Silverado V8 Two Wheel Drive Automatic

I changed my plugs and wires, and it started fine and ran ok except for a stuttering at acceleration. I went to Auto Zone and they had me rewire the plug wires. I did this and now it wont start or anything. Is there anywhere I can find correct distributor cap to plug wiring diagram?
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Sunday, August 9th, 2020 AT 12:19 PM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
You got it


https://www.2carpros.com/forum/automotive_pictures/12900_fo1500_1.jpg

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Sunday, August 9th, 2020 AT 12:19 PM (Merged)
Tiny
STEX73
  • MEMBER
  • 2 POSTS
Thank you for the diagram of the plug wire. It helped out a lot and I got the truck running again. I am going to reccomend you to everyone I know.
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Sunday, August 9th, 2020 AT 12:20 PM (Merged)
Tiny
ELECTMAN53
  • MEMBER
  • 1 POST
  • 1998 CHEVROLET SILVERADO
  • V8
  • 2WD
  • AUTOMATIC
  • 185,000 MILES
Does not crank but turn over and back fires also what is the fire order
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Thursday, September 3rd, 2020 AT 6:42 PM (Merged)

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