98 pontiac bonneville se spark plug firing order diagram

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1997 Pontiac firing order is 165432

you will find the spark plugs it self by following the wiring thats going into the engine block if it a 6 cyclinder there is 6 wires change one spark plug one at a time DO NOT pull all the plugs out cause u will not remember the order they go inand thats the firing pattern if u lose the firing pattern u will have to call a mechanic or go online and look it up.

If 3800 engine the timing is 1-6-5-4-3-2
If 2.8L or 3.1L or 3.4L timing is 1-2-3-4-5-6

Coil packs on 3800 are (1 / 4, 5 / 2, 3 / 6)
Coil packs on 2.8L or 3.1L are (1 / 4, 6 / 3, 2 / 5) 1995 earlier across the front from right to left.
Coil packs on 3.4L are (5 / 2, 3 / 6, 4 / 1) 1996 across the back from right to left.

Hi!!
Firing order for the Pontiac Bonneville SE 3.8L engine is 1-6-5-4-3-2. The number one spark plug is on the front left of the engine.
Good Luck!1 A HELPFUL - 4 THUMBS - rating for this solution would be greatly appreciated. Thank you for using FixYa.

The firing order is 1,6,5,4,3,2.The number one cylinder is in the front passengers side.So the front would be 1,3,5 and the rear would be 2,4,6.Hope this helps.Good luck.Let me know if I can help you with anymore questions.

go to google type in 1997 Bonneville spark plug firing order and there will be a list of choices to choose from

For the 1989 Pontiac Bonneville 3.8L V6:

Firing Order:
1-6-5-4-3-2

Cylinders:
.......(back)
2.........4.........6
1.........3.........5
.......(front)

Ignition Connections:
(back)
___
o <---6
o <---3
___
o <---2
o <---5
___
o <---4
o <---1

(front)

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My sincere apologies for the delayed response.
I am personally going back to answer your unanswered questions.
For the 3.8L:

Firing Order:
1-6-5-4-3-2

Cylinders:
(back of engine)
2-------4-------6
1-------3-------5
(front of engine)

Ignition Connections:
(back)
__
o-<--6
o-<--3
__
o-<--2
o-<--5
__
o-<--4
o-<--1
(front)

Let me know if this helped.....

The ign coils should be marked. The front cylinders are 1 3 5 and the rears are 2 4 6..... the coils starting from the front is 1,4 5,2 3,6