Low Coolant light is on but coolant levels are OK. Is this a themostat problem or temperaturre sensor? Please advise as to cost to repair.
Just purchased used 95 Cougar with 100,700 miles. Garage kept. Very clean.
Besides low coolant light, car has left front side vibration starting at approx. 30-35 mph.
Passed New Jersey emissions inspection.
The low coolant light is from either low coolant level in the reservoir or a defective sensor in the reservoir bottle. Sounds like a speed-sensitive vibration - probably tire balance but could be a bad tire.
For testing purposes unplug the low coolant sensor. If the light still is on you have a short in the wiring. If it goes out either the sensor is bad or, if the radiator or recovery tank has been replaced, somebody forgot to drill out the template hole(s) for the sensor. If this is the case the sensor is dry and "thinks" you're low on coolant. HTH. -Jim
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