Lincoln Aviator: Automatic Transmission - 10-Speed Automatic Transmission – 10R60 / Diagnosis and Testing - Leakage Inspection

Leak Check Test

  1. With the vehicle in NEUTRAL, position it on a hoist.
    REFER to: Preliminary Inspection (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing).
  1. Inspect the gasket and sealing areas for evidence of leakage.
  1. Trace the transmission fluid leak to the highest point.
  1. Clean the area of the suspected leak.
  1. Lower the vehicle.
  1. Remove the transmission fluid fill plug or fluid level indicator.
  1. Add leak detection dye to the transmission fluid. Use 1 fl oz (30 ml) of dye solution for every 4 qt (3.8 L) of transmission fluid.
  1. With the transmission fluid at normal operating temperature, road test the vehicle for at least 1 mile with at least 1 application of the TCC.
  1. With the vehicle in NEUTRAL, position it on a hoist.
    REFER to: Preliminary Inspection (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing).
  1. If the source of the leak is obvious, repair as required.
  1. After the repair, clean the affected area.

Leakage From Torque Converter Housing

  1. Leaks from the torque converter housing can originate from several locations. The paths which the transmission fluid takes to reach the bottom of the torque converter housing is shown in the illustration. The following 6 steps correspond with the numbers in the illustration.
    1. Transmission fluid leaking by the converter hub seal lip will tend to move along the drive hub and onto the back of the torque converter. Except in the case of a total seal failure, transmission fluid leakage by the lip of the seal will be deposited on the inside of the torque converter housing only, near the outside diameter of the housing.
    1. Transmission fluid leakage by the outside diameter of the torque converter impeller hub seal and the case will follow the same path that leaks by the inside diameter of the converter hub seal follow.
    1. Transmission fluid leakage from the converter cover weld or the converter-to-flexplate stud weld will appear at outside diameter of the torque converter on the back face of the flexplate and in the converter housing only near the flexplate. If a converter-to-flexplate lug, lug weld or converter cover weld leak is suspected, remove the converter and pressure check.
    1. Transmission fluid leakage from the bolts inside the converter housing will flow down the back of the torque converter housing. Leakage may be from loose or missing bolts.
    1. Engine oil leaks from the rear main oil seal.
    1. Transmission fluid leak from front support cover and seal assembly.
  1. Remove the torque converter.
  1. Using a black light, observe the torque converter housing. Inspect for evidence of dye from the pump bolts, front support cover and seal assembly, and torque converter hub seal. Repair as required.
  1. If the source of the leak is not evident, continue with this procedure to leak test the torque converter.
  1. Place the torque converter in an arbor press. Support the torque converter on the mounting pads.
  1. Install the torque converter leak tester (307-421A) into the torque converter hub.
  1. Secure the press. Apply enough force from the press to seal the torque converter leak tester (307-421A) into the torque converter hub.
  1. Connect a compressed air supply to the torque converter leak tester (307-421A).
  1. Apply pressure to the torque converter and inspect for leaks at the torque converter hub welds and seams. Use a soap bubble solution around those areas to aid in diagnosis. If any leaks are present, install a new torque converter.
  1. Inspect for leaks at the stud or mounting pad and balance weight welds. Use a soap bubble solution around those areas to aid in diagnosis. If any leaks are present, install a new torque converter.
  1. After leaks are repaired, clean the remaining transmission fluid dye from serviced areas..

    Diagnosis and Testing - Road Testing Vehicle

    Shift Point Road Test NOTE: Always drive the vehicle in a safe manner according to driving conditions and obey all traffic laws. Upshift Gear Sequence At times the 10-speed transmission may skip gears when the vehicle starts from a complete stop...

    Diagnosis and Testing - Parameter Identification (PID) Chart

      Diagnostic PID Chart PID Acronym PID Name Description APP APP sensor   APP APP1 APP sensor 1 APP 1 AST Time Since Start Time (in seconds) since the vehicle was started CLRDIST Distance since DTC cleared Distance driven since PCM DTCs were cleared ECT TCM   ECT TCM Engine coolant temperature data provided to the TCM ENGLOAD Engine Load Engine load calculated by PCM ETC_ACT Electronic Throttle Control Actual Electronic Throttle Control Actual calculated by PCM FOOT_BRAKE Foot Brake - Foot brake state used by strategy Foot brake state used by strategy calculated by PCM GEAR_CMD Gear Commanded by Module PCM commanded transmission gear GEAR_ENGAGED Transmission Gear Engaged Transmission Gear Engaged GEAR_OSC# Gear Commanded by Output State Control Output state control commanded gear ISS_A_QF Transmission Input Shaft Speed Sensor -A- Quality Factor Transmission Input Shaft Speed Sensor -A- Quality Factor ISS_A_RAW Intermediate Speed -A- Raw Intermediate Speed -A- Raw ISS_B_RAW Intermediate Shaft Speed -B- Raw Intermediate Shaft Speed -B- Raw ISS_B_QF Transmission Input Shaft Speed Sensor -B- Quality Factor Transmission Input Shaft Speed Sensor -B- Quality Factor LINEDSD# Line Pressure Control Desired Commanded line pressure MIL_DIS The distance travelled since the (MIL) was activated The distance travelled since the MIL was activated OSS_QF Transmission Output Shaft Speed Sensor Quality Factor Fault status for the OSS sensor OSS_RAW Output Shaft Speed - Raw Actual speed of the OSS sensor (rpm) PCA Pressure Control Solenoid A   LPC PCA AMP# Pressure Control Solenoid A   LPC PCA_F Pressure Control Solenoid A Status   LPC PWRT_FUNCMON_A Powertrain Secondary Monitor/Performance Fault A Powertrain Secondary Monitor/Performance Fault A PWRT_FUNCMON_B Powertrain Secondary Monitor/Performance Fault A Powertrain Secondary Monitor/Performance Fault A REALTIME Total time (ECU) has been active ECU Time running RPM_TCM Engine Revolutions Per Minute Engine rpm input to TCM SHFT_DROP Shift RPM Drop in Input Shaft Speed Below Expected Shift rpm drop in input shaft speed below expected SHFT_FLRE Shift RPM Rise in Input Shaft Speed Above Expected Shift rpm rise in input shaft speed above expected SHFT_ID Shift Identification of Shift (PID)s Lag, Time, Flare and Drop Shift identification of shift PIDs lag, time, flare and drop SHFT_LAG Shift Time Elapsed From 10% to 90% of Complete Actual time during shift between 10% and 90% complete SHFT_TIME Shift Time Elapsed From Commanded to 10% Complete Shift time 0% to 10% complete SNOWPLW_CFG Snowplow as configured in the (PCM)...

    Other information:

    Lincoln Aviator 2020-2021 Service Manual: General Procedures - Transmission Fluid Cooler - Backflushing and Cleaning


    Special Tool(s) / General Equipment Transmission Cooling System Heated Flusher Materials Name Specification Motorcraft® MERCON® ULV Automatic Transmission FluidXT-12-QULV WSS-M2C949-A, MERCON® ULV  Flushing NOTE: Use transmission fluid specified for this transmission...

    Lincoln Aviator 2020-2021 Service Manual: Removal and Installation - Media Hub


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