Visual Inspection: Notes

This inspection will identify modification or additions to the vehicle operating system that may affect diagnosis. Inspect the vehicle for non-Ford factory add-on devices such as:

• Electronics add-on items:
  • Air conditioning
  • Generator (alternator)
  • Engine turbo
  • Cellular telephone
  • Cruise control
  • CB radio
  • Linear booster
  • Backup alarm signal
  • Computer
• Vehicle modification:
  1. These items, if not installed correctly, will affect the Powertrain Control Module (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 the LEAKAGE INSPECTION .
• Correct linkage adjustments. For additional information, refer to ADJUSTMENTS .