This bulletin provides additional service diagnostic information and repair procedures related to Variable Charge Motion Controllers (VCM) equipped in the applicable vehicles listed below.
This bulletin also provides information on the use of the Service Kit for 2.4L equipped engines, which enables replacing the VCM Lever Arm without replacing the complete Intake Manifold Assembly.
Refer to the applicable Engine Control / Fuel System sections in the Shop Manual, and then follow the procedures outlined in this bulletin whenever a vehicle with the following symptom(s) are being diagnosed:
 Check Engine Light illumination with VCM related DTC.
 Unstable engine RPM and reduced engine power.
 Abnormal noise from the intake manifold whenever engine RPM is raised from idle speed.
