Mirada L6-225 3.7L VIN G 1-bbl (1982)
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Thermal Vacuum Valve: Testing and Inspection
Coolant Controlled EGR (CCEGR) Valve
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.