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Home >> Jeep >> 1990 >> Wrangler Base, 4.2 T, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests - CARBURETED >> Thermal Electric Switch

Thermal Electric Switch

Switch is also referred to as the Thermo Electric Switch (TES). Switch is located in air cleaner housing. Disconnect switch connector. When temperature at switch is greater than 65°F (18°C), continuity should exist across switch terminals. At temperatures less than this, no continuity should exist.