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Home >> Chevrolet >> 2004 >> Avalanche 2500 >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 8 (Automatic Transmission - 4L60-E/4L65-E (Troubleshooting)) >> Troubleshooting >> No First or Second Gear/No Third or Fourth Gear

No First or Second Gear/No Third or Fourth Gear

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No 1st or 2nd/No 3rd or 4th

Checks Causes
2-3 Shift Solenoid Valve (367B)
  • Sediment is in the valves
  • The electrical connection is faulty
  • Damaged seal