307-01B Automatic Transmission - Vehicles With: 6-Speed Automatic Transmission - 6F35 2013 - 2014 MKZ
Diagnosis and Testing Procedure revision date: 09/28/2012

Diagnosis By Symptom

Symptom Chart(s)

Symptom Chart: Automatic Transmission

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).

In most circumstances the PCM sets a DTC to help guide with diagnostics. Refer to the DTC Chart before using the Symptom Chart. The Condition column lists the vehicle condition. The Possible Sources column lists a detailed vehicle condition. The Action column lists the action to be performed to determine the cause of the condition. Each action lists the components that can cause the symptom and the individual components in that system. The components are listed in order of disassembly. Use the list of components and the required action to focus on disassembly inspections for the root cause of the concern.

Symptom Possible Sources Action
  • Engagement Concerns
  • No Forward

  • REFER to: Forward Clutch Assembly (307-01B Automatic Transmission - Vehicles With: 6-Speed Automatic Transmission - 6F35, Description and Operation).
  • No Reverse

  • REFER to: Direct Clutch Assembly (307-01B Automatic Transmission - Vehicles With: 6-Speed Automatic Transmission - 6F35, Description and Operation).
  • Harsh Reverse

  • REFER to: Direct Clutch Assembly (307-01B Automatic Transmission - Vehicles With: 6-Speed Automatic Transmission - 6F35, Description and Operation).
  • Harsh Forward

  • REFER to: Forward Clutch Assembly (307-01B Automatic Transmission - Vehicles With: 6-Speed Automatic Transmission - 6F35, Description and Operation).
  • Delayed/Soft Reverse

  • REFER to: Direct Clutch Assembly (307-01B Automatic Transmission - Vehicles With: 6-Speed Automatic Transmission - 6F35, Description and Operation).
  • Delayed Soft/Forward

  • REFER to: Forward Clutch Assembly (307-01B Automatic Transmission - Vehicles With: 6-Speed Automatic Transmission - 6F35, Description and Operation).
  • No Forward and No Reverse
  • Check the transmission fluid level.
    REFER to: Transmission Fluid Level Check (307-01B Automatic Transmission - Vehicles With: 6-Speed Automatic Transmission - 6F35, General Procedures).
  • Inspect the filter and pump assembly.
    REFER to: Pump Assembly (307-01B Automatic Transmission - Vehicles With: 6-Speed Automatic Transmission - 6F35, Description and Operation).
  • Delayed/Soft Forward and Reverse
  • Inspect the filter and pump assembly.
    REFER to: Pump Assembly (307-01B Automatic Transmission - Vehicles With: 6-Speed Automatic Transmission - 6F35, Description and Operation).
  • Neutral after Launch

  • REFER to: Low One-Way Clutch Assembly (307-01B Automatic Transmission - Vehicles With: 6-Speed Automatic Transmission - 6F35, Description and Operation).
  • Shift Concerns
  • No 1-2 Shift/Harsh/Soft/Slipping

  • REFER to: Intermediate Clutch Assembly (307-01B Automatic Transmission - Vehicles With: 6-Speed Automatic Transmission - 6F35, Description and Operation).

  • REFER to: Forward Clutch Assembly (307-01B Automatic Transmission - Vehicles With: 6-Speed Automatic Transmission - 6F35, Description and Operation).

  • REFER to: Low One-Way Clutch Assembly (307-01B Automatic Transmission - Vehicles With: 6-Speed Automatic Transmission - 6F35, Description and Operation).
  • No 2-3 Shift/Harsh/Soft/Slipping

  • REFER to: Direct Clutch Assembly (307-01B Automatic Transmission - Vehicles With: 6-Speed Automatic Transmission - 6F35, Description and Operation).

  • REFER to: Forward Clutch Assembly (307-01B Automatic Transmission - Vehicles With: 6-Speed Automatic Transmission - 6F35, Description and Operation).

  • REFER to: Intermediate Clutch Assembly (307-01B Automatic Transmission - Vehicles With: 6-Speed Automatic Transmission - 6F35, Description and Operation).
  • No 3-4 Shift/Harsh/Soft/Slipping

  • REFER to: Overdrive Clutch Assembly (307-01B Automatic Transmission - Vehicles With: 6-Speed Automatic Transmission - 6F35, Description and Operation).

  • REFER to: Forward Clutch Assembly (307-01B Automatic Transmission - Vehicles With: 6-Speed Automatic Transmission - 6F35, Description and Operation).

  • REFER to: Direct Clutch Assembly (307-01B Automatic Transmission - Vehicles With: 6-Speed Automatic Transmission - 6F35, Description and Operation).
  • No 4-5 Shift/Harsh/Soft/Slipping

  • REFER to: Direct Clutch Assembly (307-01B Automatic Transmission - Vehicles With: 6-Speed Automatic Transmission - 6F35, Description and Operation).

  • REFER to: Overdrive Clutch Assembly (307-01B Automatic Transmission - Vehicles With: 6-Speed Automatic Transmission - 6F35, Description and Operation).

  • REFER to: Forward Clutch Assembly (307-01B Automatic Transmission - Vehicles With: 6-Speed Automatic Transmission - 6F35, Description and Operation).
  • No 5-6 Shift/Harsh/Soft/Slipping

  • REFER to: Intermediate Clutch Assembly (307-01B Automatic Transmission - Vehicles With: 6-Speed Automatic Transmission - 6F35, Description and Operation).

  • REFER to: Direct Clutch Assembly (307-01B Automatic Transmission - Vehicles With: 6-Speed Automatic Transmission - 6F35, Description and Operation).
  • Only Gears 1,2,3,4 Available

  • REFER to: Forward Clutch Assembly (307-01B Automatic Transmission - Vehicles With: 6-Speed Automatic Transmission - 6F35, Description and Operation).
  • Only Gears 3 and 5 Available

  • REFER to: Direct Clutch Assembly (307-01B Automatic Transmission - Vehicles With: 6-Speed Automatic Transmission - 6F35, Description and Operation).
  • Only Gears 2 and 6 Available

  • REFER to: Intermediate Clutch Assembly (307-01B Automatic Transmission - Vehicles With: 6-Speed Automatic Transmission - 6F35, Description and Operation).
  • Only Gears 4,5,6 Available

  • REFER to: Overdrive Clutch Assembly (307-01B Automatic Transmission - Vehicles With: 6-Speed Automatic Transmission - 6F35, Description and Operation).
  • Only Gears 1 and R Available

  • REFER to: Low/Reverse Clutch Assembly (307-01B Automatic Transmission - Vehicles With: 6-Speed Automatic Transmission - 6F35, Description and Operation).

  • REFER to: Low One-Way Clutch Assembly (307-01B Automatic Transmission - Vehicles With: 6-Speed Automatic Transmission - 6F35, Description and Operation).
  • No Engine Braking in Low

  • REFER to: Low/Reverse Clutch Assembly (307-01B Automatic Transmission - Vehicles With: 6-Speed Automatic Transmission - 6F35, Description and Operation).
  • Torque Converter Operation Concerns
  • No Apply
  • Check for Diagnostic Trouble Codes (DTCs) related to torque converter concerns.
  • Always Applied (engine stalls)
  • Check for Diagnostic Trouble Codes (DTCs) related to torque converter concerns.
  • Cycling/Shutter/Chatter
  • Check for Diagnostic Trouble Codes (DTCs) related to torque converter concerns.
  • Check the transmission fluid level.
    REFER to: Transmission Fluid Level Check (307-01B Automatic Transmission - Vehicles With: 6-Speed Automatic Transmission - 6F35, General Procedures).
  • Other Concerns
  • Transmission Stuck in Park

  • REFER to: Selector Lever Cable (307-05B Automatic Transmission External Controls - Vehicles With: 6-Speed Automatic Transmission - 6F35, Removal and Installation).
  • Check for Diagnostic Trouble Codes (DTCs) related to the GSM and TRCM .
    REFER to: External Controls (307-05B Automatic Transmission External Controls - Vehicles With: 6-Speed Automatic Transmission - 6F35, Diagnosis and Testing).
  • No Park Range
  • Inspect the selector lever cable for correct alignment/adjustment.
    REFER to: Selector Lever Cable Adjustment (307-05B Automatic Transmission External Controls - Vehicles With: 6-Speed Automatic Transmission - 6F35, General Procedures).
  • Mechanical obstruction in path of the TRCM output arm.
  • TRCM capacitor failure.
    REFER to: External Controls (307-05B Automatic Transmission External Controls - Vehicles With: 6-Speed Automatic Transmission - 6F35, Diagnosis and Testing).
  • Transmission Stuck in Drive

  • REFER to: Selector Lever Cable (307-05B Automatic Transmission External Controls - Vehicles With: 6-Speed Automatic Transmission - 6F35, Removal and Installation).
  • Check for Diagnostic Trouble Codes (DTCs) related to the GSM and TRCM .
    REFER to: External Controls (307-05B Automatic Transmission External Controls - Vehicles With: 6-Speed Automatic Transmission - 6F35, Diagnosis and Testing).
  • External Leaks

  • REFER to: Leakage Inspection (307-01B Automatic Transmission - Vehicles With: 6-Speed Automatic Transmission - 6F35, Diagnosis and Testing).
  • Noise
  • Vibration
  • Engine drive accessories, suspension, CV joints, transmission fluid cooler tubes,
    REFER to: Noise, Vibration and Harshness (NVH) (100-04 Noise, Vibration and Harshness, Diagnosis and Testing).
  • INSPECT the park pawl, park pawl actuator, and TR sensor for damage or wear.
    REFER to: Transmission Range (TR) Sensor (307-01B Automatic Transmission - Vehicles With: 6-Speed Automatic Transmission - 6F35, Removal and Installation).
  • Overheating

  • REFER to: Transmission Cooling (307-02B Transmission Cooling - Vehicles With: 6-Speed Automatic Transmission - 6F35, Diagnosis and Testing).


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