W350 1 Ton Pickup 4WD V8-360 5.9L VIN U 4-bbl (1982)
Thermal Vacuum Valve: Testing and Inspection
The CCEGR valve can be tested for proper operation by placing it in ice and cooling it to below 40° F. Using vacuum pump and gauge tool
C-4207 or equivalent, apply a vacuum of at least 10 inches of mercury to the valve nipple corresponding to the blue striped hose. If vacuum
reading drops off more than 1 inch in one minute, the valve should be replaced.
