Visual Inspection

This inspection will identify modifications or additions to the vehicle operating system that may affect diagnosis.

Inspect vehicle for non-Ford approved add-on devices such as:
- Electronic add-on items
- Air conditioning.
- Generators (alternators).
- Engine turbos.
- Cellular telephones.
- Cruise controls.
- CB radios.
- Linear amplifiers.
- Backup alarm signals.
- Electronic brakes for trailer towing.
- Computers.
- Vehicle modifications.

These items, if not installed properly, will affect powertrain control module or transmission function. Pay particular attention to add-on wiring splices in the powertrain control module harness or transmission wiring harness, abnormal tire size or axle ratio changes. Leaks; refer to Leakage Inspection. Leakage Inspection

SHIFT LINKAGE CHECK
Check for a misadjustment in shift linkage by matching the detents in the transmission range selector lever with those in the transmission. If they match, the misadjustment is in the indicator. Do not adjust the shift 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 Technical Service Bulletins that pertain to the transmission concerns.