PROCEDURE
REMOVE CENTER NO. 1 COWL TOP VENTILATOR LOUVER
Slide the hood to cowl top seal as shown in the illustration.
Disengage the clip to remove the center No. 1 cowl top ventilator louver.
REMOVE VACUUM SENSOR ASSEMBLY
Disconnect the connector.
Remove the vacuum sensor assembly from the brake booster assembly.
REMOVE CHECK VALVE GROMMET
Remove the check valve grommet from the brake booster assembly.