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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 16 (Automatic Transmission - 4L60-E/4L65-E/4L70-E - Service, Diagnosis & Troubleshooting) >> Lack of Power or Hesitation

Lack of Power or Hesitation

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Lack of Power or Hesitation

Checks Causes
Automatic Transmission Fluid Pressure (TFP) Manual Valve Position Switch (69) Incorrect TFP signal logic for current gear position. Refer to Transmission Fluid Pressure (TFP) Manual Valve Position Switch Logic .