Visual Inspection

4R70E/4R75E

Visual Inspection

WARNING: If equipped with fire suppression system, refer to Fire Suppression System for Important Safety Warnings. Failure to follow this instruction may result in serious personal injury Procedures.

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 (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; refer to Leakage Inspection Leakage Inspection.
- Correct selector lever cable adjustments; refer to Automatic Transmission/Transaxle for Selector Lever Cable Adjustment. Adjustments


Selector Lever Linkage Check

Check for a misadjustment in the selector lever cable by matching the detents in the transmission selector lever with those of the manual lever 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 selector lever cable is not correctly adjusted. Refer to Automatic Transmission/Transaxle for Selector Lever Cable Adjustment. Adjustments


Check TSBs

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


Carry Out On-Board Diagnostic (OBD) 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 Self Test using the diagnostic tool. Refer to Computers and Control Systems Information.