The 2002 Ford Explorer has single overhead cam (SOHC).
The 2002 Ford Expedition has single overhead cam (SOHC).
The 2002 Ford Escape has double overhead cam (DOHC).
The 2002 Ford Focus has double overhead cam (DOHC).
The 2002 Ford Taurus has overhead valves (OHV).
The 2002 Ford Mustang has overhead valves (OHV).
The 2002 Ford F-250-Super-DUTY has single overhead cam (SOHC).
The 2002 Ford F-150 has overhead valves (OHV).
Yes it does.
The 2013 Ford Fusion has double overhead cam (DOHC).
The 2008 Ford Escape has double overhead cam (DOHC).
The 2004 Ford Escape has double overhead cam (DOHC).