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Home >> Chevrolet >> 2005 >> Chevy Express H1500, Van Passenger >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 4 (Automatic Transmission - 4L80-E/4L85-E - Service, Diagnosis & Trouble Shooting) >> Troubleshooting >> First and Second Gear Only - D4

First and Second Gear Only - D4

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First and Second Gear Only - D4

Checks Cause
2-3 Solenoid (311)
Check for DTCs.
  • Stuck Off
  • Loose connector
  • No voltage to the solenoid
  • Solenoid O-ring failure
  • No PCM signal to the solenoid
2-3 Shift Valve (312) Stuck
Check the PCM for current DTCs.
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