RAM 2500 Van V8-5.2L Prop VIN 2 (2000)
Positive Crankcase Ventilation Valve: Testing and Inspection
Fig.11 Check Vacuum At PCV Valve - Typical
1. With engine idling, remove the PCV valve from cylinder head (valve) cover. If the valve is not plugged, a hissing noise will be heard as air passes
through the valve. Also, a strong vacuum should be felt at the valve inlet.
Fig.12 Check Vacuum At Crankcase Breather Opening - Typical
2. Install the PCV valve. Remove the crankcase breather/filter. Hold a piece of stiff paper, such as a parts tag, loosely over the opening of crankcase
breather/filter at the cylinder head (valve) cover .
3. The paper should be drawn against the opening in the cylinder head (valve) cover with noticeable force. This will be after allowing approximately
one minute for crankcase pressure to reduce.
