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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1467 (Automatic Transmission, 4L60-E/4L65-E (Troubleshooting)) >> Diagnostic Information and Procedures >> Second Gear Start

Second Gear Start

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Second Gear Start

Checks Causes
Signal Noise on VSS Circuit Chassis vibrations, incorrect harness routing, owner installed electronic components.
Diagnostic Trouble Code (DTC)
  • Electrical or mechanical 1-2 Shift Solenoid Valve (367) malfunction.
  • Sediment in the valve body may cause improper TFP operation.
Leaking AFL Circuit Spacer plate (48), spacer plate gaskets (47 or 52), control valve body (60), mispositioned, damaged or poor sealing/mating surface exist.
Blocked or restricted Valve Body Spacer Plate (48) Spacer Plate to Case Gasket (47) or Spacer Plate to Valve Body Gasket (52) Trapped sediment or metal particles.
Stuck 1-2 Shift Valve (366)
  • Trapped sediment or metal particles.
  • Binding shift valve or worn valve body bore.
TFP manual valve position switch (69) TFP manual valve position switch (69) erratic operation.
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