chevrolet Workshop Repair Guides

Chevrolet Workshop Service and Repair Manuals

Positive Crankcase Ventilation > < EGR Valve|Testing and Inspection
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Thermal Vacuum Valve: Testing and Inspection

Place thermal sensing part of valve into water heated to 115-120° F. Check to ensure valve is opened by applying air pressure. If valve is not
opened, replace valve.

Positive Crankcase Ventilation > < EGR Valve|Testing and Inspection