Transmission shifts at approx 3000 rpm.sometimes it will not shift into overdriv on 1997 Mercury Mountaineer

i have replaced the trottle senser and cam senser

by in Potwin, KS on November 20, 2012
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3 answers
ANSWER by , November 21, 2012
Have it checked out by a mech. before putting any MORE parts on needlessly.
ANSWER by , November 21, 2012
Possible trans , not engine problem? Check engine light on? Fix eng. codes/systems first , then fix trans......... Agree with wetry!
ANSWER by , November 21, 2012
seek a free diag and est from aamco