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HOMESERVICE MANUALSCHEVROLET2001CHEVY EXPRESS G2500, VAN PASSENGER EXTENDED, 5.0 MREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 755 (AUTOMATIC TRANSMISSION, 4L60-E/4L65-E (TROUBLESHOOTING))TROUBLESHOOTINGSECOND GEAR START
2001 Chevrolet Chevy Express G2500, Van Passenger Extended, 5.0 M

Second Gear Start

2001 Chevrolet Chevy Express G2500, Van Passenger Extended, 5.0 MSECTION Second Gear Start
WARNING: This page is about a different car, the 2004 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
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.
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.