Transmission and Drivetrain: Technical Service Bulletins

• Customer Interest
  • Drivetrain - Rear Differential Whine/Hum Noise
  • A/T - Torque Converter Access Plug Dislodges
  • Speedometer Defective,, 4X4 Lamp ON, DTCs P1635/P1639
  • A/T - Inadvertent Shift Interlock Disabling
  • A/T - 4R70W Clunk Noise on 2nd to 1st Gear Downshift
• By Symptom
  • Customer Interest
    • Drivetrain - Rear Differential Whine/Hum Noise
    • A/T - Torque Converter Access Plug Dislodges
    • Speedometer Defective,, 4X4 Lamp ON, DTCs P1635/P1639
    • A/T - Inadvertent Shift Interlock Disabling
    • A/T - 4R70W Clunk Noise on 2nd to 1st Gear Downshift
  • Erratic Operation
    • A/T - Inadvertent Shift Interlock Disabling
  • False instrument warning light/gauges
    • Speedometer Defective,, 4X4 Lamp ON, DTCs P1635/P1639
  • Inoperative
    • Speedometer Defective,, 4X4 Lamp ON, DTCs P1635/P1639
  • Loose
    • A/T - Torque Converter Access Plug Dislodges
  • Noise
    • Drivetrain - Rear Differential Whine/Hum Noise
    • A/T - 4R70W Clunk Noise on 2nd to 1st Gear Downshift
• All Technical Service Bulletins
  • Drivetrain - Rear Differential Whine/Hum Noise
  • A/T - Cooler Flushing Service Tips
  • A/T - Torque Converter Access Plug Dislodges
  • Speedometer Defective,, 4X4 Lamp ON, DTCs P1635/P1639
  • A/T - In Line Fluid Filter Kit
    • Overview
    • Service Procedure
  • A/T - Mercon V ATF Usage
  • A/T - Inadvertent Shift Interlock Disabling
  • A/T - 4R70W Clunk Noise on 2nd to 1st Gear Downshift