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Engine Mount Diaphragm Actuator Check

Ensure engine mount diaphragm actuator is working properly. To test actuator diaphragm, use a hand-held vacuum pump and apply about 9 in. Hg to actuator diaphragm. Actuator rod should move smoothly and diaphragm should hold vacuum. Replace as necessary. If engine mount is okay, see CONTROL SOLENOID CIRCUIT CHECK .