Make Up Air (MUA) Valve Leak Customers may experience a Malfunction Indicator Lamp (MIL) illumination

Bulletin number

0901023

Component

Engine and engine cooling

Summary

Make Up Air (MUA) Valve Leak Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that the following Diagnostic Trouble Code (DTC) has been set: ? P2C90 - Crankcase Ventilation System - Hose A Disconnected. This bulletin involves replacing the MUA check valve, or performing an inspection and possibly replacing the PCV valve.

Owners of these vehicles have filed 71 complaints in the engine category.