Computers and Control Systems: Technical Service Bulletins

• Customer Interest
  • Damaged Heated Oxygen Sensor (HO2S) Replacement
    • Overview
    • Repair Procedure
  • Erratic Idle/Engine Stalls MIL ON DTC 23/44/45/48
  • Engine - Poor Starting in Cold Weather
  • Engine - Misfire/Stumble Under Load
• By Symptom
  • Customer Interest
    • Damaged Heated Oxygen Sensor (HO2S) Replacement
      • Overview
      • Repair Procedure
    • Erratic Idle/Engine Stalls MIL ON DTC 23/44/45/48
    • Engine - Poor Starting in Cold Weather
    • Engine - Misfire/Stumble Under Load
  • Erratic Operation
    • Engine - Misfire/Stumble Under Load
  • Starting problems
    • Recall - Improved Starting in Cold Weather
    • Cold Start
    • Engine - Poor Starting in Cold Weather
• All Technical Service Bulletins
  • Suspension - Air Suspension Lamp ON/Inoperative
  • Recall - Improved Starting in Cold Weather
  • Damaged Heated Oxygen Sensor (HO2S) Replacement
    • Overview
    • Repair Procedure
  • H633 ECU Update - Campaign Close
  • Cold Start
  • Idle Air Control Valve - Unnecessary Replacement
  • Erratic Idle/Engine Stalls MIL ON DTC 23/44/45/48
  • Engine - Poor Starting in Cold Weather
  • Oxygen Sensor - Codes 44 & 45 Diagnosis
  • Heated Oxygen Sensor - Unnecessary Replacement
  • Engine - Misfire/Stumble Under Load