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What is wrong when you find oil in the coolant while temp gauge remains normal and oil is clean?


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2004-10-04 18:54:23
2004-10-04 18:54:23

Are you sure it is motor oil? It may very well be tranny fluid, check to make sure it is full and clean. The tranny coolers are internal in the radiator in automatics. If there is coolant in the tranny fluid it will look like milk, make sure you do not drive at all, till fixed and flushed

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The 1999 Cadillac normal coolant temperature gauge reading should be 180 degrees. A 195 degrees thermostat could be used, causing the temperature gauge to read 195.

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This would indicate that the system is low on coolant when the gauge is hot. Not enough coolant to service the heater core.

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If the temp gauge reads normal and the engine is not overheating, the thermostat is doing its job. The thermostat maintains the coolant temp by opening and closing allowing the coolant to flow or not to flow. When it is closed the coolant doesn't circulate.

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any make after 1997 will be susceptible to electrical issues when engine is normal. i wish they would have left the computer stuff out of vehicles. gauge is most likely electrically impaired.


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