Visual Inspection

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:
- PCM enhancements
- turbo boost enhancements
- sensor modifications
- A/C
- generators (alternators)
- engine turbos
- cellular telephones
- cruise controls
- turbo engine brake
- CB radios
- linear amplifiers
- backup alarm signals
- electronic brakes for trailer towing
- computers

- Vehicle modifications.

These items, if not installed correctly, will affect 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; refer to Leakage Inspection. Leakage Inspection


Selector Lever Cable Check

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

Hydraulic leakage at the manual control valve can cause delay in engagements and/or slipping while operating if the cable is not correctly adjusted. Refer to Automatic Transmission/Transaxle for selector lever cable adjustment.


Check TSBs

Refer to all TSBs that pertain to the transmission concerns, and follow the procedure outlined.


Carry out On-Board Diagnostic (OBD)

After a road test, with the vehicle warm and before disconnecting any connectors, carry out the Self Test using the scan tool. Refer to Computers and Control Systems Information for diagnosis and testing of the powertrain control system.