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Home >> Chevrolet >> 1986 >> Chevette 4D Hatchback, 1.8 D >> Repair and Diagnosis >> Engine Performance >> System >> Fuel Injection System - 4-CYL Diesel >> Testing >> Glow Plug System >> Thermo Switch

Thermo Switch

Submerge end of thermo switch in water and gradually raise water temperature. Check continuity across terminal and body. If there is no continuity above 122°F (50°C), replace switch.