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Home >> GMC >> 2004 >> Envoy 4WD >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission, 4L60-E/4L65-E (Troubleshooting) >> Diagnostic Information and Procedures >> Harsh Shifts

Harsh Shifts

Harsh Shifts

Checks Causes
Throttle Position Sensor Open or shorted circuit
Vehicle Speed Sensor (36) Open or shorted circuit
Automatic Transmission Fluid Pressure (TFP) (69)
  • Contamination
  • Damaged seals
Trans Fluid Temperature Sensor (Part of 69) Open or shorted circuit
Engine Coolant Temperature Sensor Open or shorted circuit
Pressure Control Solenoid (377)
  • Damage to electrical terminals
  • Contamination