LEMON Manuals: Even more car manuals for everyone
Home >> Ford >> 2021 >> Explorer Limited Hybrid, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 728 (Automatic Transmission - 10-Speed Automatic Transmission - 10R80 (2 Of 2)) >> Diagnosis And Testing >> Diagnosis By Symptom >> Pinpoint Tests >> Pinpoint Test D : Engagement Quality - Forward

Pinpoint Test D : Engagement Quality - Forward

WARNING: This page is about a different car, the 2021 Ford Police Interceptor Utility. However, it is still accessible from the selected car via links, so may be relevant.
  1. Normal Operation and Fault Conditions 

    • Delayed/soft forward 

      • Carry out the line pressure test. If line pressure is low, refer to the Line Pressure Diagnosis Chart for further diagnosis. REFER to: Special Testing Procedures .

      • Check the A clutch for a slipping apply condition. REFER to: A Clutch  .

      • Check the E clutch for a slipping apply condition. REFER to: E Clutch  .

    • Harsh forward 

      • Carry out the line pressure test. If line pressure is high, refer to the Line Pressure Diagnosis Chart for further diagnosis. REFER to: Special Testing Procedures .

      • Check the E clutch for a harsh apply condition. REFER to: E Clutch  .

      • Check the A clutch for a delayed apply condition. REFER to: A Clutch  .

    • Neutral after launch 

    • Slip on hard acceleration in 1A and 2A 

    • Harsh/soft/delayed engagement after start/stop restart 

      • Inspect the transmission fluid auxiliary pump, seals, and hydraulic passages for damage, blockage or leaks. CLEAN or INSTALL new components as necessary. REFER to: the appropriate Service Information

    Possible Sources 

    • Corrupted transmission strategy
    • Low transmission fluid level
    • Low or high line pressure
    • Clutch fault
    • Transmission fluid auxiliary pump fault

  2. Diagnostic steps are not provided for this symptom or DTC. REFER to: Diagnostic Methods