Here's why:
* Engine variations: The 3.1L V6 engine might have slight variations in its cylinder numbering depending on the specific manufacturing year and model of the Lumina.
* Need for visual reference: To accurately identify cylinder #1, you'd need a diagram specific to your engine model.
How to find the information:
1. Consult your owner's manual: Your car's owner's manual should have a diagram of the engine that shows cylinder numbering.
2. Search online: Look for a repair manual or technical service bulletin for your specific Lumina model and year. Many online resources, like Chilton or Haynes manuals, have detailed engine diagrams.
3. Contact a mechanic: If you can't find the information, a local mechanic can easily identify cylinder #1.
Please note: Working on a car engine can be dangerous. If you are unsure of your abilities, always consult a professional mechanic.
