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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 745 (Automatic Transaxle - 4T45-E - Service, Diagnosis & Troubleshooting) >> First and Fourth Gears Only

First and Fourth 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 Fourth Gears Only

Checks Causes
1-2 Shift Solenoid Valve (305)
  • Stuck ON
  • The solenoid is plugged
  • Electrical malfunction
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