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Oldsmobile
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1999
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Cutlass V6-191 3.1L VIN M SFI
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Repair and Diagnosis
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Engine, Cooling and Exhaust
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Cooling System
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Description and Operation
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Coolant Sensor Description
Coolant Sensor Description
All engines have a low coolant warning switch. This switch is located in the coolant surge tank.
The sensor is not a replaceable item. If faulty, you must replace the entire surge tank.