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Home >> Buick >> 2007 >> Lucerne CX >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 9 (Automatic Transaxle - 4T80-E - Service, Diagnosis & Troubleshooting) >> Extended or Delayed Upshifts

Extended or Delayed Upshifts

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Extended or Delayed Upshifts

Checks Causes
Calibration Incorrect platform or level
Pressure Regulator Boost Valve Stuck in bushing
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