I have a 2006 ford 500. Trying to figure out whether or not its water cooled.

What is your question?

I need to replace the throttle body on it and the shops asking if its water cooled or not. How can i tell? Symptoms are a rough start at times and a jerking when giving it gas. Also has a delay in responding to the gas pedal. Couldnt find any vac leaks, and no check engine light is on. Found the tgrottle body to be a common problem with these as its symptoms. Open to other ideas though.