Ford Fiesta Tech Tip: Automatic Transmission Grinding Or Rattling
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Ford Fiesta Tech Tip: Automatic Transmission Grinding Or Rattling

Some 2011 Fiesta vehicles equipped with an automatic transmission and built on or before 1/13/2011 may exhibit a grind/rattle noise from the transaxle in 2nd and 4th gears. In some vehicles, the noise may also occur in reverse, in addition to 2nd and 4th gears. Follow the Service Procedure steps to correct the condition.

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Models

2011 Ford Fiesta

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Issue

Some 2011 Fiesta vehicles equipped with an automatic transmission and built on or before 1/13/2011 may exhibit a grind/rattle noise from the transaxle in 2nd and 4th gears. In some vehicles, the noise may also occur in reverse, in addition to 2nd and 4th gears.

Action

Follow the Service Procedure steps to correct the condition.

Service Procedure

1. Evaluate the grind/rattle noise.

   a. Does the noise occur in reverse only?

      (1) Yes – This article does not apply.

      (2) No – Proceed to Step 1b.

   b. Does the noise occur in 1st, 3rd, 5th or 6th gear?

      (1) Yes – This article does not apply.

      (2) No – Proceed to Step 2.

2. Remove the transaxle assembly.

3. Remove clutch and clutch engagement system bearing unit and actuators.

4. Replace the inner input shaft seal located between both input shafts and the outer input shaft case seal to transmission clutch housing.

5. Install new clutch 1 actuator and clutch 2 actuator assemblies.

   a. The spring retainers and actuator levers are matched sets with corresponding serial numbers.

6. Install new clutch assembly kit,

   a. Release clutch 1 and clutch 2 self adjuster locks. Clutch actuator lever locks must be released before transmission is installed or clutch will not operate.

7. Install the transmission assembly.

8. NOTE: The PCM and TCM are a matched set. Programming the PCM will automatically update the TCM.

NOTE: Some vehicles may already be at the latest level calibration.

Reprogram the PCM and transmission control module (CFCM) to the latest calibration using IDS release 74.02 and higher. Calibration files may also be obtained online.

9. NOTE: Transmission adaptive learning no longer requires an adaptive drive to reset the clutch engagement points.

NOTE: Failure to perform all steps of the adaptive learning routines may result in erratic shifts and driveability concerns.

Using IDS, select Powertrain, Transmission, Transmission Adaptive Learning and perform each of the following.

   a. Transmission Range Sensor Adaptive Learning.

   b. Shift Drum Adaptive Learning.

   c. Clutch Adaptive Learning.

   d. Exit.

Courtesy of ALLDATA.

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