How much fluid should be in the overflow tank when hot and cold?

Asked by May 18, 2013 at 06:38 PM

Question type: Maintenance & Repair

Toyota Camry temperature gauge went up to hot.. took into be serviced and dealership
could not find anything wrong.  It would not overheat for them. two weeks later I have same
problem. it overheated but again NO smoke or leaking fluid. Could it be the thermostat?

3 Answers


There should be Hot and Cold markings on the side of the tank. It could be that your engine is not over heating - it could be a bad sending unit.

what is a bad sending unit???


It's the actual sensor that tells your gauge how hot the engine is. These things rarely go bad, so when they do, it can be puzzling.

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