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Home >> Jeep >> 1990 >> Wrangler Islander, 2.5 E >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests - CARBURETED >> Vacuum Switch Assembly
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Vacuum Switch Assembly

The 4" and 10" vacuum switches are located together in a bracket located at the rear center of engine compartment. The 4" switch is Natural in color, while the 10" switch is Green in color. Switches are normally closed (vacuum less than calibration). To test switches, perform OPEN LOOP SWITCH TEST. See Figure .