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Cadillac 16 XTS
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Discussion Starter #1
I noticed recently that when the aftermarket windshield washer fluid heater was turned on in my 2008 DTS that there was a noticeable power drain in the car heater system.
I could hear the heater system struggling to maintain the fan level. It was a very cold day, the temperature was in the teens. Does the water heater draw that much current that it impacts other systems in the car. The car battery is new this year. Thanks for your inputs. Frank
 
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