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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1619 (Automatic Transmission - 4T45-E - Removal & Installation, Service, Overhaul, Troubleshooting & Diagnosis) >> Diagnostic Information And Procedures >> Loss of Power

Loss of Power

WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
Loss of Power

Checks Causes
Fluid Level Low
Shift Solenoids (305)
  • Second gear start failed OFF
  • 2-3 Shift solenoid Valve failed ON
TCC System The TCC is stuck ON or is dragging
Torque Converter (55) Contaminated or damaged