Flash: 3.0L Powertrain Diagnostic And System Enhancements
This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest
available software.
A small number of customers may experience the following condition:
· **Buzzing type noise in the fuel rail area of the engine.**
· Bucking under hard acceleration.
The software enhancements also include:
· **Improvements to protect engine from fuels out of the EN590 specifications or fuels
with a high biodiesel content.**
· Improvements to the A/C compressor relay duty cycle operation to prevent ignition
off battery draw.
