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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1587 (Automatic Transaxle - 4T45-E - Service, Diagnosis & Troubleshooting) >> First and Second Gears Only

First and Second Gears Only

WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
First and Second Gears Only

Checks Causes
2-3 Shift Solenoid Valve (305)
  • Stuck in OFF
  • Leaking solenoid
  • Electrical malfunction
2-3 Shift Valve (307) Stuck in downshifted position
Direct Clutch Failed clutch (released)
Pressure Control Solenoid (312) Actual line pressure is lower than desired line pressure.
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