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:
- A/C

- generator (alternators)

- engine turbo

- cellular telephone

- cruise control

- CB radio

- linear amplifiers

- backup alarm signal

- computer


- Vehicle modification.

- These items, if not installed correctly, will affect transmission function. Pay particular attention to add-on wiring splices in the TCM (Transmission Control Module) harness or transmission wiring harness, abnormal tire size or axle ratio changes.

- Leaks, refer to Leakage Inspection .

- Correct linkage adjustments, refer to Automatic Transmission/Transaxle.

Selector Lever Linkage Check

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

Check TSBs

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

Carry Out On-Board Diagnostics, KOEO (Key ON Engine OFF), KOER (Key ON Engine Running)

After a road test, with the engine and transmission at normal operating temperature and before disconnecting any connectors, use the scan tool to perform the self-test procedure. Refer to Computers and Control Systems Information for diagnosis and testing of the powertrain control system.