Firing sequence for a 1997 Buick Lesabre?

There's no single "firing sequence" for a 1997 Buick LeSabre engine. The firing order depends entirely on the engine type. The LeSabre in 1997 could have come with several different engines: a 3.1L V6, a 3.8L V6, or possibly a different engine depending on trim level and market.

To find the correct firing order, you need to know which engine is in your specific car. This information is usually found:

* On a sticker under the hood: Often located on the underside of the hood, near the hinges or on the radiator support.

* In your owner's manual: This is the most reliable source.

* On the engine block itself: Sometimes cast into the engine block, though it may be difficult to read.

Once you identify the engine displacement (3.1L or 3.8L, for example), you can search online for the firing order using search terms like "1997 Buick LeSabre 3.8L V6 firing order".

Without knowing the engine type, I cannot provide the firing order.