Montana AWD V6-3.4L VIN E (2004)
Positive Crankcase Ventilation Valve: Service and Repair
Positive Crankcase Ventilation Valve Replacement
Removal Procedure
Important: The positive crankcase ventilation (PCV) valve is not removable from the valve rocker arm cover. The PCV valve and rocker arm cover
must be replaced as an assembly.
1. Remove the left valve rocker arm cover.
Important: If the PCV valve is not defective it may be possible to clean the valve rather than replacing the rocker arm cover.
2. Remove the PCV baffle.
2.1 Remove the screws (1) from the PCV baffle.
2.2 Clean the PCV valve (3).
3. If the PCV valve is defective or cannot be effectively cleaned the valve cover (4) must be replaced.
Installation Procedure
Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring
replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants,
or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may
damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.
