Where is the number one cylinder on 1998 ford-f-150?

I can't tell you the exact location of the #1 cylinder on a 1998 Ford F-150 without knowing the engine size. The firing order and cylinder numbering can vary depending on the specific engine.

Here's how to find it:

1. Locate your engine: Pop your hood and identify the engine (it's usually the largest part under the hood).

2. Find the #1 cylinder marking: Look for a marking on the engine block that identifies the #1 cylinder. This might be a cast-in number, a sticker, or a tag.

3. Use a wiring diagram or a repair manual: If you can't find a physical marking, consult a wiring diagram or repair manual for your specific engine. These will provide a diagram showing the cylinder arrangement and firing order.

Important note: It's crucial to have a proper understanding of your engine's specifics to ensure accurate identification.