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 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.

- 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. Refer to Automatic Transmission/Transaxle 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, Key ON Engine OFF (KOEO) , Key ON Engine Running (KOER)

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.