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.
1985 Mazda GLC BaseFACTORY OEM SERVICE PROCEDURE
Water THERMO Switches
- Remove switch from lower left hand corner of radiator. The switch will have Green/Red and Black wires attached to it.
- Place switch in water with a thermometer and heat up water gradually. Check temperature at which continuity exists between both terminals of switch.
- The switch should show continuity at 59.4-66.6°F (15-19°C). Replace switch if it does not agree with standard value.
Factory Service Tools
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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.