Transmission and Drivetrain: Technical Service Bulletins

• Customer Interest
  • A/T - 4L30E MIL ON/DTC P1870 Stored in PCM
    • Overview
    • Service Procedure
  • A/T - MIL ON/DTC P1870 Stored in Memory
    • Overview
    • Service Procedure
      • Diagnosis
      • Corrective Action
  • A/T - 4L30E Accumulator Piston Cover Fluid Leak
  • A/T - (4L30E) Delayed Gear Engagement
  • A/T - Oil Pan Drain Plug Leak
• By Symptom
  • Customer Interest
    • A/T - 4L30E MIL ON/DTC P1870 Stored in PCM
      • Overview
      • Service Procedure
    • A/T - MIL ON/DTC P1870 Stored in Memory
      • Overview
      • Service Procedure
        • Diagnosis
        • Corrective Action
    • A/T - 4L30E Accumulator Piston Cover Fluid Leak
    • A/T - (4L30E) Delayed Gear Engagement
    • A/T - Oil Pan Drain Plug Leak
  • Leaks
    • A/T - 4L30E MIL ON/DTC P1870 Stored in PCM
      • Overview
      • Service Procedure
    • A/T - 4L30E Accumulator Piston Cover Fluid Leak
    • A/T - Oil Pan Drain Plug Leak
  • Noise
    • Drivetrain - Driveline 'Clunk' Explanation
• All Technical Service Bulletins
  • Electrical - Inspect Connectors for Various Malfunctions
  • Drivetrain - Driveline 'Clunk' Explanation
  • Vehicle - Fluid Leakage/Seepage Information
  • A/T - 4L30E MIL ON/DTC P1870 Stored in PCM
    • Overview
    • Service Procedure
  • M/T - Speedometer Gear Bushing Mounting Position Update
  • A/T - MIL ON/DTC P1870 Stored in Memory
    • Overview
    • Service Procedure
      • Diagnosis
      • Corrective Action
  • A/T - Fluid Requirements
  • A/T - 4L30E Accumulator Piston Cover Fluid Leak
  • A/T - (4L30E) Delayed Gear Engagement
  • A/T - Oil Pan Drain Plug Leak