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 MANUALSFORD1999TAURUS SE, 4D SEDAN, 3.0 2, AX4SREPAIR AND DIAGNOSISELECTRICALGAUGESINSTRUMENT PANELS - ANALOGSYSTEM TESTSTEST V: LOW COOLANT LEVEL CHIME NOT OPERATING PROPERLY
1999 Ford Taurus SE, 4D Sedan, 3.0 2, AX4S
Test V: Low Coolant Level Chime Not Operating Properly
1999 Ford Taurus SE, 4D Sedan, 3.0 2, AX4SSECTION Test V: Low Coolant Level Chime Not Operating Properly
- Turn ignition switch to LOCK position. Connect New Generation Star (NGS) tester to Data Link Connector (DLC). Using NGS tester, perform Generic Electronic Module (GEM) self test. If no DTCs exist, go to next step. If any DTCs exist, repair them first.
- Disconnect engine coolant level switch harness connector C100. Using a fused jumper wire, connect terminals at engine coolant level switch harness connector C100. Turn ignition switch to RUN position. If LOW COOLANT indicator does not illuminate, go to next step. If LOW COOLANT indicator illuminates, replace engine coolant level switch.
- Turn ignition switch to LOCK position. Disconnect jumper wire. Measure resistance between ground and Black wire terminal at engine coolant level switch harness connector C100. If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Black wire.
- Measure voltage at White/Light Blue wire terminal at engine coolant level switch harness connector C100. If greater than 10 volts exist, system is okay at this time. If voltage is 10 volts or less, repair open in White/Light Blue wire.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.