Visual Inspection - TorqShift(R)
Visual Inspection - TorqShift(R)
A visual inspection identifies 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
- Vehicle modifications
These items, if not installed correctly, 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.
Selector Lever Linkage Check
Check for a misadjustment in selector lever linkage by matching the detents in the selector lever with those in the transmission.
If the selector lever cable is not adjusted correctly, hydraulic leakage at the manual control valve can cause delay in engagements and/or slipping while operating. Refer to Automatic Transaxle/Transmission External Controls Adjustments for Selector Lever Cable Adjustment.
Check TSBs
Refer to all TSBs pertaining to the transmission concerns, and follow the procedure as outlined.
Carry Out Quick Test
NOTE: If equipped, turn the Power Take-Off (PTO) unit off to make sure test results are correct. For a description of PTO operation, refer to Transmission Electronic Control System Transmission Electronic Control System - TorqShift(R). The PCM self-test is not accessible when the PTO is in operation.
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 for diagnosis and testing of the PCM.