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98 transport engine temp goes up and shuts off?

Here are a few potential reasons why your 1998 transport engine temperature may be rising and causing it to shut off:

1. Coolant Level: Check the coolant level in your vehicle's radiator and reservoir. If it's low, add more coolant as per the manufacturer's specifications. A low coolant level may cause the engine to overheat and shut off to prevent further damage.

2. Radiator Fan: Ensure the radiator fan is working correctly. The radiator fan helps to dissipate heat from the engine by drawing cool air through the radiator. If the fan is not functioning properly, it can result in overheating. Check if the fan turns on when the engine is at operating temperature. If it doesn't, there might be an electrical issue, a faulty fan motor, or a broken fan blade.

3. Water Pump: The water pump is responsible for circulating coolant through the engine. If the water pump fails, it can cause coolant flow problems and lead to overheating. Check for any leaks or unusual noises coming from the water pump area.

4. Thermostat: The thermostat regulates the flow of coolant between the engine and the radiator. If the thermostat is stuck in the closed position, it can block the flow of coolant and cause overheating. Check the thermostat and ensure it opens and closes at the correct temperature.

5. Faulty Temperature Sensor: A faulty engine temperature sensor can provide incorrect readings, causing the engine to run hotter than it actually is. This can lead to the engine shutting off as a safety precaution. Test the temperature sensor using a multimeter to verify if it's providing accurate readings.

6. Head Gasket: A blown or damaged head gasket can cause engine coolant to leak into the combustion chambers, resulting in overheating. Check for signs of a blown head gasket, such as white or grey smoke from the exhaust, excessive coolant consumption, or milky white residue in the oil.

7. Clogged Radiator or Hoses: A clogged radiator or radiator hoses can restrict coolant flow and cause overheating. Inspect the radiator for any blockages, such as dirt, bugs, or leaves. Also, check the radiator hoses for any kinks or blockages.

If you're not comfortable troubleshooting these issues yourself, it's best to consult with a qualified mechanic for proper diagnosis and repair.