45 RFE not upshifting into overdrive or converter lockup

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Stevem684

Junior Member
Joined
Aug 9, 2022
Posts
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Location
Monroe, OH US
Ram Year
2007 Dakota
Engine
4.7 multi
Have a 2007 4.7L flex 4x4 with a 45RFE tranny that won't shift into overdrive or converter lockup and has been ongoing for about 6 months. Used to run at 70mph and rpms were about 1500, now it stay at 2000 or just above. Just had a the tranny serviced with filter changes. Does the shift linkage need to be reset or is it something else? Any help will be appreciated.
 
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