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Try replacing radiator cap Is cooling fan working? Make sure radiator is not plugged or dirty Check coolant level

water pump

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Q: Engine overheat when at high speed with ac on.?
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What can cause the car to stall when running the ac?

An engine usually has a higher idle speed when the ac is running. If the high speed idle does not operate then the ac will cause the engine to stall.


Why does the engine of a 1996 ford bronco overheat only when the AC is on?

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