Some Ford F-Super Duty F-250-450 pickup trucks equipped with the 6.7L diesel engine may experience an engine shudder with or without turbo flutter noise around 900-1,400 rpm with steady throttle.
Some Ford F-Super Duty F-250-450 pickup trucks equipped with the 6.7L diesel engine may experience an engine shudder with or without turbo flutter noise around 900-1,400 rpm with steady throttle.
The issue may be more noticeable at high elevation, high ambient temperature and/or when driving up a slight incline. The concern is not present during regeneration or while using cruise control. Some vehicles that exhibit the concern may set DTC P0299.
Check all continuous memory diagnostic trouble codes (CMDTCs). If any DTCs other than P0299 are present, this bulletin does not apply. Continue with normal diagnostics.
Using the IDS, take a recording of the event. Enter data logger and select the following pids:
MAP_A (psi), MAF_A (g/s), EBP (psi).
RPM, APP1 (%), VGTDC (%).
EGRTP_CMD (%).
DPF_REGEN_STAT
Road test the vehicle and duplicate the concern.
Make a recording of the event.
Review the recording and compare it to the example shown here. If the recording shows MAF_A fluctuation with APP1 steady, replace the turbocharger. If not, this bulletin does not apply. Proceed with normal diagnostics.
Learn how electronic parking brake actuators have replaced manual systems and now play a key role in advanced safety features like automatic emergency braking. This WIYB Training...
Not all fuel injectors are created equal. In this WIYB Training Series, we compare Standard® Fuel Injectors against OE, low-cost imports. See why precision engineering and rigorous...
Carrying active OEM subscriptions for all manufacturers is not possible for many shops. However, access to this software is required for certain modern vehicles and repairs, and...
Enhance your collision repair workflow with Autel’s IA900, a process-driven solution integrating precision alignment, bi-directional diagnostics, and ADAS calibration. Designed...
Voice Your Opinion!
To join the conversation, and become an exclusive member of Vehicle Service Pros, create an account today!
