LEMON Manuals: Even more car manuals for everyone
Home >> GMC >> 1995 >> Forward Control 4.3 Z, Standard >> Repair and Diagnosis (Single Page) >> Transmission >> Automatic Trans >> Automatic Transmission Overhaul - 4L80-E >> Trouble Shooting >> Symptom Diagnosis >> Soft Shifts

Soft Shifts

Low line pressures. Pressure control solenoid stuck on. Accumulator piston seals damaged or piston springs missing. Accumulator cover bolts improperly tightened or gaskets mispositioned. PCM or TCM failure. Incorrect PROM calibration.