No heat while car idiles

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12-22-2016, 01:22 PM

james bradford

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No heat while car idiles

2010 DTS blows cold air while it idles, but will heat up when you driving and pressing the gas pedal

12-23-2016, 05:41 PM

slowroll

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Low on coolant. Are there any DTCs?

01-11-2017, 09:32 AM

JB07DTS

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I have this same problem in my 07. Even at red lights it blows out cold, but while driving it is fine.

01-11-2017, 09:39 AM

slowroll

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Low coolant would be most common. Thermostat 2nd choice

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