Why won't my truck shift into overdrive? on 1994 Dodge Dakota

my truck will not shift into overdrive and the speed odometor does not work either. i replaced the speed control sensor and checked the gear for it and still it is not working. i was told that there is a speed buffer or such but i have not idea where to find this on my truck

by in Burkburnett, TX on September 02, 2009
1 answer
ANSWER by on October 22, 2009
Hi, Were you able to get this resolved? Did you get the diagnostic trouble codes in the transmission checked?
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