Firing order, 1990 Pontiac Grand am 2.5 l, 4 cyl

Engine Firing order: 1-2-3-4-5-6 Distributorless ignition system; Fig. 3.8L (VIN 1) Engine.

Diagrams in this link

https://www.google.com/search?q=Firing+order+for+a+2006+Pontiac+Grand+Prix+GXP+5.3

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The firing order on all 60 degree V6 engines is 1-2-3-4-5-6. In 1990 GM stroked the 2.8 L engine from to 3.1 L. It's based on the 2.8 L V-6 engine found in 80's cars like the Camaro and Beretta.

Hi , could you supply the correct engine code and vin number ?
For the engine code (EKG) the firing order is 1-6-5-4-3-2
For the engine code (EGH) the firing order is 1-2-3-4-5-6

1994 Pontiac Grand Am 3.1L 6-cylinder Firing Order



Fig. 3.1L (VIN M) Engine Firing Order: 1-2-3-4-5-6 Distributorless Ignition System.

One can verify that this Firing Order Diagram applies to your 1994 Grand Am, by making sure that the 8th digit of VIN is "M" (for this 6-cyl 3.1L engine type), and the 10th digit of VIN is "R" (for model year 1994).

4-cylinder:

Firing Order: 1-3-4-2

3.1 liter:

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

that's an easy one..

GOOGLE IMAGES >> firing order Pontiac Grand Am GT 3.4

http://www.google.com/images?hl=en&source=imghp&biw=832&bih=433&q=firing+order+pontiac+grand+am+GT+3.4&btnG=Search+images&gbv=2&aq=f&aqi=&aql=&oq=&gs_rfai=

Several VIN engine there, check this diagrams...




Fig. 3.1L Engine Firing order: 1-2-3-4-5-6 Distributorless ignition system




Fig. 3.4L Engine Firing order: 1-2-3-4-5-6 Distributorless ignition system




Fig. 3.8L (VIN 1) Engine Firing order: 1-6-5-4-3-2 Distributorless ignition system




Fig. 3.8L (VIN K) Engine Firing order: 1-6-5-4-3-2 Distributorless ignition system




Fig. 3.4L Engine Firing order: 1-2-3-4-5-6 Distributorless ignition system

Hope helps (remember rated this).

I'm assuming the "6" is for the 6-Cylinder....

For the 4.0L (6-Cyl):
Firing Order:
1-5-3-6-2-4
Cylinders:
(back of engine)
.........6
.........5
.........4
.........3
.........2
.........1
(front of engine)
Distributor:
.....(back)
.................(+)-screw
.....5.....3
1...............6
.....4......2
(+)-screw
......(front)

Let me know if this helped, or if you have additional information or questions. Feel Free to contact me at FixYa.com!

4 cyl 1-2-3-4 clockwise rotation 6 cyl 2.8 and 3.1 1-2-3-4-5-6

Depending on the engine, the diagram can be found here:

2.5L 4 Cyl: http://autorepair.about.com/library/firing_orders/bl-fo-12774.htm

3.0L V6: http://autorepair.about.com/library/firing_orders/bl-fo-12775.htm

Hope this is what you were looking for.