Visual Inspection

Visual Inspection
This inspection will identify modifications or additions to the vehicle operating system that may affect diagnosis. Inspect the vehicle for non-Ford factory add-on devices such as:
^ Electronic add-on items:
- air conditioning.
- generator (alternator).
- engine turbo.
- cellular telephone.
- cruise control.
- CB radio.
- linear booster.
- backup alarm signal.
- computer.
^ Vehicle modification:

These items, if not installed correctly, will affect the PCM or transmission function. Pay particular attention to add-on wiring splices in the PCM harness or transmission wiring harness, abnormal tire size or axle ratio changes.
^ Leaks.
^ Correct linkage adjustments.

Selector Lever Linkage Check
Check for a misadjustment in selector lever linkage by matching the detents in the transmission selector lever with those in the transmission. If they match, the misadjustment is in the indicator. Do not adjust the selector lever linkage.

Hydraulic leakage at the manual control valve can cause delay in engagements and/or slipping while operating if the linkage is not correctly adjusted.

Check TSBs
Refer to all TSBs which pertain to the transmission concern and follow the procedure.

Carry Out On-Board Diagnostics Key ON Engine OFF (KOEO), Key ON Engine Running (KOER)
After a road test, with the vehicle warm and before disconnecting any connectors, carry out the Quick Test using a suitable diagnostic scan tool. Refer to Computers and Control Systems for diagnosis and testing of the powertrain control system.