The powersteering reservoir has the filler tube molded on/in it.
ATF
The back wiper fluid is supplied by the windshield washer fluid tank in your engine compartment on the 2003 Ford Explorer ( 4 door )
According to the 2003 Ford Explorer owners manual : ( DOT 3 brake fluid , meeting Ford specification ESA-M6C25-A )
A 2003 Ford Explorer holds 16 quarts of transmission fluid in the pan and torque converter. Fluid levels can be checked via the dipstick in the engine compartment.
it has to be pumped into the bottom of the transmission
Actually , starting with the 2002 ( 4 door ) Ford Explorer , there is no automatic transmission fluid dipstick
ten
No The automatic transmissions in a 2003 Ford Explorer XLT take : Motorcraft MERCON - V - ATF ( automatic transmission fluid ) -------------------------------------------------------------------------------------------- The power steering and the transfer case take : Motorcraft MERCON ATF
The power distribution box ( which is " live " ) is located in the engine compartment , on the drivers side , near the brake fluid reservoir on a 2003 Ford Explorer
This does not answer your question , but starting with the 2002 model year of the Ford Explorer ( 4 door ) there is not an automatic transmission fluid level dipstick / tube that would allow you to put fluid in at home
All modern passenger cars and light trucks use fluid marked as "DOT3".
The power steering fluid of choice by Ford engineers for your vehicle year is straight mercon 5 transmission fluid.