wiring diagram for firing order

1998 GMC SIERRA
218,000 MILES • V8 • 4WD • AUTOMATIC
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BOB IZUMI
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I just changed the cap, rotor, plugs and wires and can't get it to fire, i'm looking for the diagram for the firing order?
Feb 26, 2009 at 9:12 PM
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RASMATAZ
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Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.


https://images.2carpros.com/forum/automotive_pictures/12900_fo_39.jpg

Feb 26, 2009 at 9:23 PM
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KORTEGA
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i need the firing order for my truck it has a 5.0 vortec engine
May 23, 2019 at 2:52 PM (Merged)
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BLUELIGHTNIN6
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Firing order 1-8-4-3-6-5-7-2

--------------- | 2 4 6 8 1 3 5 7 | --------------- Distributor rotates clockwise .
May 23, 2019 at 2:52 PM (Merged)
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NEWAVDAVE1
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Electrical problem V8 Four Wheel Drive Automatic 100000 miles

need firing order & diagram please I love this site.
Jan 21, 2021 at 9:04 AM (Merged)
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STRAILER
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The firing order is V8 18436572 here is both the v6 and v8 engine (below).

v6 - Firing Order1-6-5-4-3-2

Here is a guide to show you how to tune up your car

https://www.2carpros.com/articles/how-to-tune-up-a-car-engine


Spark plug wire stats.


0-15 inch cable 3,000 - 10,000 ohms.
15-25 inch cable 4,000 - 15,000 ohms.
25-35 inch cable 6,000 - 20,000 ohms.
NOTE: Longer wires should measure about 5,000 to 10,000 ohms per foot.

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

Cheers, Ken
Jan 21, 2021 at 9:04 AM (Merged)
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32RENZ
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Engine Performance problem
1986 GMC Sierra V8 Two Wheel Drive Automatic

I need the firing order on gmc suburban
Jan 21, 2021 at 9:04 AM (Merged)
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MHPAUTOS
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The firing order is 1 8 4 3 6 5 7 2 driverside head 1357 passenger 2468
get #1 cylinder up on compression stroke and see where the rotor is pointing this will be the start of your firing order goes clockwise

Mark (mhpautos)
Jan 21, 2021 at 9:04 AM (Merged)
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.