The firing order for the 1997 Oldsmobile Aurora 4.0L V8 engine is 1-2-7-3-4-5-6-8. The cylinder numbering starts from the front of the engine on the driver's side, with cylinders 1-3-5-7 on the left bank and 2-4-6-8 on the right bank. This specific firing order helps ensure smooth engine operation and balanced power delivery.
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