Computers and Control Systems: Technical Service Bulletins

• Customer Interest
  • Electrical - MIL ON/DTC's Set By Various Control Modules
  • Electrical - Intermittent MIL/DTC P2138/Reduced Power
  • Engine, A/T - Shift/Driveability Concerns/MIL ON
  • Engine - Hard Start, High Idle, and Idle Fluctuation
  • Starting System - Starter Inoperative or May Spin Only
• By Symptom
  • Abnormal wear/deterioration
    • Electrical - MIL ON/DTC's Set By Various Control Modules
    • Electrical - Intermittent MIL/DTC P2138/Reduced Power
  • Customer Interest
    • Electrical - MIL ON/DTC's Set By Various Control Modules
    • Electrical - Intermittent MIL/DTC P2138/Reduced Power
    • Engine, A/T - Shift/Driveability Concerns/MIL ON
    • Engine - Hard Start, High Idle, and Idle Fluctuation
    • Starting System - Starter Inoperative or May Spin Only
  • Driveability
    • Engine, A/T - Shift/Driveability Concerns/MIL ON
    • Engine - Hard Start, High Idle, and Idle Fluctuation
    • Engine Controls - Manual Update Revised Chart C-2B
    • Fuel System - Revised Chart A-7
  • Erratic Shifting
    • Engine, A/T - Shift/Driveability Concerns/MIL ON
  • Inoperative
    • Starting System - Starter Inoperative or May Spin Only
  • Odors
    • Engine Controls - Manual Update Revised Chart C-2B
  • Poor performance
    • Engine Controls - Manual Update Revised Chart C-2B
  • Smoke, Fumes
    • Engine Controls - Manual Update Revised Chart C-2B
  • Starting problems
    • Engine - Hard Start, High Idle, and Idle Fluctuation
    • Starting System - Starter Inoperative or May Spin Only
• All Technical Service Bulletins
  • Engine - THIS BULLETIN HAS BEEN CANCELED
  • Electrical - MIL ON/DTC's Set By Various Control Modules
  • Electrical - Intermittent MIL/DTC P2138/Reduced Power
  • Engine, A/T - Shift/Driveability Concerns/MIL ON
  • Engine - Hard Start, High Idle, and Idle Fluctuation
  • PCM - Returned Product Feedback Program
  • Oxygen Sensor Test - Revised Tech 1 Mass Storage CD
  • ECM/PCM - Damaged and/or Misdiagnosed
  • Engine Controls - Manual Update Revised Chart C-2B
  • Typical Voltages/ECM Connector End View Charts
    • Overview
    • 2.5L VIN R
    • 3.1L VIN T
    • 3.4L VIN X
    • 1991 5.7L VIN 8
    • 1990 5.7L VIN 8
    • 1990 5.7L VIN J
    • 1991 5.7L VIN J
  • Fuel System - Revised Chart A-7
  • ECM Terminal End - View Chart Revision
  • EGR - Enhanced Diagnostics Code 32
  • ECM/PCM - Damage Prevention
  • Oxygen Sensors - Silica Contamination
  • Starting System - Starter Inoperative or May Spin Only
  • Knock Sensor Circuit - Manual Update
  • PROM/MEMCAL - Identification Marks