Selector Lever Linkage Check
WARNING: This page is about a different car, the 2013 Ford F-550 Super Duty, 2013 Ford F-450 Super Duty, 2013 Ford F-350 Super Duty, and 2013 Ford F-250 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.
Check for a misadjustment in selector lever linkage by matching the detents in the selector lever with those in the transmission.
If the selector lever cable is not adjusted correctly, hydraulic leakage at the manual control valve can cause delay in engagements and/or slipping while operating. Refer to AUTOMATIC TRANSAXLE/TRANSMISSION EXTERNAL CONTROLS for Selector Lever Cable Adjustment.