Coil pack firing order

This is not the firing order that is stamped on the coil packs.
Coils are matched by 2 pairs of cylinders for ignition spark plugs and coils system.
1- Like 5 2 and 3 6 and 4 1
2- Pairs of 2 cylinders are firing at the same time.
3- When cylinder number 5 fire at ( Power Cycle) the cylinder number 2 fire but in ( Exhaust Cycle ). That is why you have those number stamped on the coil packs.

Hope it helps.

Plugs from left to right:

1-2-3-4


Coil Connections from front of engine bay to rear firewall of engine bay


3 - Rear coil pack, rear post
2 - Rear coil pack, front post

4 - Front coil pack, rear post
1 - Front coil pack, front post


Firing Order 1-3-4-2

Firing order is 1-2-3-4-5-6
Cylinders on the head with the coil pack are 2-4-6 so the other head is 1-3-5
Its difficult to tell by the diagram but the coil sequence may be 3-4-5-2-6-1
diagram courtesy of autozone.com

theres no distributor and the firing order for your 3.8 is 1-6-5-4-3-2-the following link shows the coil pack
Buick General Motor 3800 V6 Engine Firing Order DIS IDI ignition timing 3.8 Buick Engine Coil Pack Firing Order Spark Plug Wire Location Which way do the spark plug wires go on & what cylinder is what?
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For the Buick V6 231 3.8 liter turbocharged engine:
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Answers!
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Firing order:
1 - 6 - 5 - 4 - 3 - 2.
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Spark plug wire location on coil pack:
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Closest to the back of the car, left to right: 1 - 5 - 3.
Closest to the front of the car, left to right: 4 - 2 - 6.
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Spark plug wire location on engine:
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drivers side, front to back of car: 1 - 3 - 5.
passenger side, front to back of car: 2 - 4 - 6.
.----and this link shows the coil pack to cylinders
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3 8 Buick Turbo Engine Coil Pack Firing Order Spark Plug Wire Location

Coil packs do not have firing orders, engines do. I suspect you were given the incorrect part.

Firing order is 1, 5, 3, 6, 2, 4. Number 1 cylinder is up front. Why would you need the firing order, this engine does not have plug wires, each plug has its own coil pack, each coil pack is controlled by the computer.

1987 Pontiac Bonneville 3.8 liter V-6 VIN "3"

Identifying Ignition Types I and II

On Type I coil packs, three twin tower ignition coils are combined into a single coil pack unit.



On Type II coil packs, the coils can be replaced separately and the ignition wires are all on the same side of the coil pack.

With Type I Ignition



With Type II Ignition




Hope this helps.

firing order for 3.1 lumina 1994 ans older with coil pack under exhoust monifold firing order is 146325
for 3.1 lumina 95 and newer with coil pack on top of engine firing order is 523641

Check this diagram for 2003 Ford Expedition 4WD 5.4 liter SOHC V-8 VIN "L"...



Hope helps (remember rated this help).

Firing order is 13726548 coil packs are laid out standing in front of the engine

6 3 7 2
1 5 4 8

Cylinder's are numbered

4 8
3 7
2 6
1 5