Transmission Control Systems: Technical Service Bulletins

• Customer Interest
  • M/T - Blockout/Notchy Feel, Skip Shift Manuever
  • A/T - Slip in DRIVE W/Over 25 Percent Throttle, 2nd Gear
  • A/T - 4L60-E Harsh 1-2 Gear Upshift/MIL/SES/CEL ON
  • Ignition Key - Difficut To Remove in Cold Weather
  • A/T - Engine Speed Flare During Part Throttle Downshift
• By Symptom
  • Customer Interest
    • M/T - Blockout/Notchy Feel, Skip Shift Manuever
    • A/T - Slip in DRIVE W/Over 25 Percent Throttle, 2nd Gear
    • A/T - 4L60-E Harsh 1-2 Gear Upshift/MIL/SES/CEL ON
    • Ignition Key - Difficut To Remove in Cold Weather
    • A/T - Engine Speed Flare During Part Throttle Downshift
  • Erratic Operation
    • M/T - Blockout/Notchy Feel, Skip Shift Manuever
  • Hard Shifting
    • A/T - 4L60-E Harsh 1-2 Gear Upshift/MIL/SES/CEL ON
  • Hunting-Surging
    • A/T - Engine Speed Flare During Part Throttle Downshift
  • Slipping
    • A/T - Slip in DRIVE W/Over 25 Percent Throttle, 2nd Gear
  • Sticking/Binding
    • Ignition Key - Difficut To Remove in Cold Weather
• All Technical Service Bulletins
  • M/T - Blockout/Notchy Feel, Skip Shift Manuever
  • A/T - Slip in DRIVE W/Over 25 Percent Throttle, 2nd Gear
  • A/T - New Wiring Diagrams & Component Location Tables
  • Automatic Transmission - Diagnostic Codes Update
  • A/T - 4L60-E Harsh 1-2 Gear Upshift/MIL/SES/CEL ON
  • Ignition Key - Difficut To Remove in Cold Weather
  • A/T - Engine Speed Flare During Part Throttle Downshift