It could be a bad brake light switch. You have to step on the brake to shift it out of park.
The 2003 Ford Explorer has a V6 engine.
The 2003 Ford Explorer has 12 valves.
The 2003 Ford Explorer has a 5-speed automatic.
The 2003 Ford Explorer has a 23.6 degrees angle of departure.
The 2003 Ford Explorer has a 31 degrees angle of approach.
The 2003 Ford Explorer has single overhead cam (SOHC).
The height of the 2003 Ford Explorer is 5 ft. 11.9 in. (71.9 in.).
The 2003 Ford Explorer is 15 ft. 9.5 in. (189.5 in.) long.
The 2003 Ford Explorer's turning circle is 36.7 ft..
The 2003 Ford Explorer has a drag coefficient of .41 Cd.
How to remove fan clutch on 2003 ford explorer
A 2003 Ford Explorer Sport ( the two door version of the Ford Explorer ) has shock absorbers front and rear