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Everybody's familiar with engine-assisted heating. But has anyone experienced engine-assisted cooling? When I start the car and the temperature is around 100 degrees, the engine immediately comes on revving very high. It doesn't warm up first. Just wondering if this is unusual.
 

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I never heard of the Volt's engine turning on in high ambient temperatures for cooling when the battery had a working charge. Then again living on the northwest Oregon coast temperatures seldom get above 90, even 80 is an exceptional warm day.
 

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Everybody's familiar with engine-assisted heating. But has anyone experienced engine-assisted cooling? When I start the car and the temperature is around 100 degrees, the engine immediately comes on revving very high. It doesn't warm up first. Just wondering if this is unusual.
Unless your Volt's battery was fully depleted when you started the Volt (or you opened the hood) the ICE would not run. What you probably heard was the electric fan, electric coolant pump and the electric AC compressor.
 

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Put it in classic enhanced or modern enhanced view and see if there is any power from the ICE. I know my A/C compressor will get VERY loud on high load on very hot days, especially when first turned on.
 

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I'd echo everyone else here. Are you sure it's the engine? The AC compressor and cooling fans can be pretty loud under heavy load.
 
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