Need Firing order diagram or picture?

2004 OLDSMOBILE ALERO
200,000 MILES • 3.4L • AUTOMATIC
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RICHARD BERMEA
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  • 1 POST
Change coil packs plug wires and plugs my coil packs are not numbered correctly the way they're sitting on the ignition control module but from the passenger side going towards the driver side I need to see which coil packs I mean which number they are I would say the first coil pack on the passenger side would be one and four the middle coil pack would be two and five in the last coil pack would be 3 and 6 is that correct?
Jul 5, 2026 at 7:09 PM
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STRAILER
  • ✓ASE Certified Mechanic
  • 54,832 POSTS
  • ASE Certified Mechanic
Yes the 1, 3 and 5 are at the firing wall side of the engine (right)

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

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Professional Diagram for 2CarPros Members
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Jul 5, 2026 at 7:29 PM
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