To determine the correct cylinder order and coil pack arrangement for *your* specific 3.4L V6, you need to:
1. Find the engine code: This is usually stamped on a metal tag on the engine block itself. This code will help identify the exact engine variant.
2. Consult a repair manual: A repair manual specific to your vehicle's year, make, and model will contain a diagram showing the firing order and coil pack placement. Factory service manuals are the most reliable source.
3. Use an online resource: Some online databases may have diagrams, but always double-check the accuracy with the information from your vehicle's specifications.
Without knowing the specific engine code and vehicle details, it's impossible to provide the correct cylinder order and coil pack arrangement for your 3.4L V6 Chevrolet engine.