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Home >> GMC >> 2012 >> Yukon Base, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1354 (Automatic Transmission - 4L60-E - Removal & Installation, Service, Overhaul, Troubleshooting & Diagnosis) >> Diagnostic Information And Procedures >> Second/Third Gear Only or First/Fourth Gears Only

Second/Third Gear Only or First/Fourth Gears Only

WARNING: This page is about a different car, the 2009 GMC Sierra and 2009 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Second/Third Gears Only or First/Fourth Gears Only

Checks Causes
1-2 Shift Solenoid Valve (367A)
  • Sediment is in the valves
  • The electrical connection is faulty
  • Damaged seal
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