Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSMAZDA1984GLC 2D HATCHBACKREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESYSTEMEGR FUNCTION TESTINGCOMPONENT TESTINGWATER THERMO SWITCHES
1984 Mazda GLC 2D Hatchback
Water THERMO Switches
1984 Mazda GLC 2D HatchbackSECTION Water THERMO Switches
- Remove switch from radiator.
- Place the switch in water with a thermometer and gradually heat water. Check temperature at which continuity exists between both terminals of switch.
- The switch should show continuity at 59-67°F (15-19°C) if located in radiator, 118-126° (48-52°C) if located in intake manifold. Replace switch if it does not agree with standard value.
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.