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Home >> Mazda >> 1987 >> 626 Base >> Repair and Diagnosis >> Engine Performance >> System >> Fuel INJ - MPFI System >> Testing >> Coolant Temperature Switch >> 323

Coolant Temperature Switch: 323

Remove coolant temperature switch from radiator. Place switch and thermometer in water. Connect ohmmeter to switch and gradually heat water until switch opens. Switch must open at 62.8°F (17°C) or higher.