What is the firing order on a 1992 Cadillac DeVille?

The firing order for a 1992 Cadillac DeVille depends on the engine it has. The DeVille that year came with either a 4.5L V8 or a 4.9L V8. There's no single firing order for all 1992 DeVille models.

You must check the engine code (often found on a sticker under the hood or in the owner's manual) to determine the specific engine and then consult a repair manual or online database specific to that engine for the correct firing order.