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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 236 (Automatic Transmission - 4L60-E/4L65-E (Service & Replacement)) >> Diagnostic Information and Procedures >> DTC P0756: Gear Range >> Diagnostic Aids

Diagnostic Aids

WARNING: This page is about a different car, the 2003 GMC Savana and 2003 Chevrolet Chevy Express. However, it is still accessible from the selected car via links, so may be relevant.
  1. Verify that the transmission meets the specifications in the Shift Speed  table.
  2. Other internal transmission failures may cause more than one shift to occur.
  3. Refer to the Shift Solenoid Valve State and Gear Ratio  table.
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