What is the firing order for a Mercury Cougar V6?

The firing order for a Mercury Cougar V6 depends entirely on the specific year and engine type. Mercury Cougars came with various V6 engines over the years (e.g., 3.0L, 3.8L). There's no single firing order for all Cougar V6s.

To find the correct firing order for your specific Cougar, you'll need to:

1. Identify the engine displacement (e.g., 3.0L, 3.8L) and year. This information is usually found on the engine block itself or in your vehicle's documentation.

2. Consult a repair manual specific to your year and engine. A Haynes or Chilton manual, or a factory service manual, will provide the accurate firing order.

3. Use an online resource. Websites specializing in automotive repair information may have the firing order listed, but you will still need to provide the engine details.

Without knowing the year and engine specifics of your Mercury Cougar, I cannot give you the correct firing order.