transmission doesnt shift into gear 35 40 mph unless i downshift on 2004 Ford E-150

do i need transmission or is there a sensor or something that needs to b replaced

by in Kenosha, WI on December 03, 2012
2 answers
ANSWER by , December 03, 2012
Hav it scanned.
ANSWER by , December 04, 2012
get a free diag and est from aamco then shop prices