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 MANUALSOLDSMOBILE1998AURORA V8-4.0L VIN CREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSCOOLANT TEMPERATURE SENSOR/SWITCH (FOR COMPUTER)DESCRIPTION AND OPERATIONPCM CONTROLLED MESSAGES
1998 Oldsmobile Aurora V8-4.0L VIN C
PCM Controlled Messages
1998 Oldsmobile Aurora V8-4.0L VIN CSECTION PCM Controlled Messages
Description:
DESCRIPTION
A plastic surge tank, is connected to the cooling system with three hoses.
OPERATION
As the car is driven, the coolant is heated and expands. Fluid displaced by this expansion flows to the tank.
The tank is mounted at a point higher than all other coolant passages, thereby providing air bleed for the system. The coolant level in the radiator surge tank should be maintained at or slightly above the weld line.
A coolant level float switch is located within the surge tank. When the coolant in the system falls below the recommended level (approximately
1.5L), a message of low coolant level will be displayed on the IPC/DIC.
RENDER: 1.0x
NO RELATED
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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.