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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) >> Soft Shifts

Soft Shifts

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Soft Shifts

Checks Causes
Calibration Incorrect platform or level
Line Pressure Too low
Pressure Control Solenoid Stuck ON
Pressure Control Solenoid Clamp Broken clamp causing leakage