Yes as long as they both have over drive. Look for a circle around the D at the shifter.
No.
no
Inside the transmission.
The PCM on a 2003 Neon is between the radiator and the transmission under the hood.
ATF+4
No, The neon was revamped in 2003, with updated engines and chassis changes. As a Chrysler mechanic, the 2000 dodge neon 2.4L DOHC is the best. That will fit in a 2001 also.
No.
Mopar ATF+4
Haynes repair manual, Dodge Neon 2000 thru 2003. Book #30036
Atf+4
Haynes repair manual, Dodge Neon 2000 thru 2003. Book #30036
Haynes repair manual, Dodge Neon 2000 thru 2003. Book #30036