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Engine temperature gauge go overheat when i use the brake

Everything else is fine. But when I pushes the brake, it overheat. so it is fine on highway but on local road with signals, it is stressful.
It is 06 pt cruiser

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It might be a water pump problem. If the water pump is not working the only way to cool the water circulation system is by airflow. Or it could be a problem with the radiator fan that sits at the front of the engine compartment. When you hit the brakes you are getting less air flow through the engine compartment. When you accelerate you get more air flow. You could also have an electrical short somewhere that causes the gauge to rise at the same time that your brake lights come on. If your engine is not really too hot, you might try changing the fuses that control the dashboard. If your engine actually overheats, like steam comes up from under the hood, check the fan and the water pump. How often do you need to add water to your radiator? Do you lose water, like steam, or boiling overflow? Do you pull over, and check under the hood when the temperature gauge goes up?

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This could be due to a faulty coolant sensor or thermostat. You need to check and make sure the coolant sensor and the thermostat is not faulty. You can also have you vehicle checked fully by a proficient mechanic.

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rustyboilerz

Since the engine only over heats when braking, I would say the cooling fan isn't working properly. Its controlled by the engine temperature sensor, so have the sensor replaced, as it's relatively inexpensive, also check the cooling fan relay. And while you're at it check the condition of the radiator, they have a habit of stopping up mid-core. This restriction can cause heat surge when slowing down, due to the lack of coolant flow at idle speeds. Any qualified radiator shop, or auto repair center should be able to fully diagnose the problem for you.

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When you notice the overheat occur while you're driving slowly , turn your defroster and heater fans on highest speed, with full heat, this will help dissipate some of the heat. until you can get this fixed. If you get no heat from your defrosters or heaters, you have lost at least some coolant.

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