My 02 impala ls only revs in drive but will
drive in 3 until the first automatic gear
change then it will drive in d. Whats the
A tranny shop will have to check this out, you could have a TCM acting up or a gear selector switch sending the wrong signals, it doesn't sound like a transmission problem as you stated it shifts fine if started out in the 3 position.
Search Chevrolet Impala Questions
Chevrolet Impala Experts