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Home >> Hummer >> 2009 >> H3 Adventure, Standard >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Automatic Transmission - Removal & Installation, Service, Overhaul, Troubleshooting & Diagnosis) >> Diagnostic Information And Procedures >> Third Gear Only

Third Gear Only

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Third Gear Only

Checks Causes
System Voltage
  • 12 volts not supplied to transmission
  • Electrical short (pinched solenoid wire)
  • Solenoid not grounded
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