Ford TSB #21B10-S1
2017 Ford F-150
Affected Component: POWER TRAIN
- Summary
- Certain 2017-2020 Model Year F-150 Equipped with a 3.5L GTDI Engine Powertrain Control Module Reprogram for Cam Phaser Rattle Reports of Transmission Shudder after PCM Reprogram: Dealers are instructed to stop performing this field service action until further notice. This shudder is under investigation.