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Old 01-04-13, 11:25 AM
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jcoukos
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Default Cold air
My wife's 07 IS250 awd constantly blows cold air even with the heat on and the outside temperature is below freezing. Tried turning the A/C button off and no difference. Occasionally warm air will come out.

Is this a bad thermostat?

Any ideas?

Thanks

JC
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Old 01-04-13, 11:41 PM
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RTIS250
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Check your coolant level.. common problem is a leaking water pump, causing the coolant level to be low enough to starve coolant circulation to the heater hoses, which happen to be the highest point of the system.
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Old 01-05-13, 06:37 AM
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jcoukos
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Originally Posted by RTIS250
Check your coolant level.. common problem is a leaking water pump, causing the coolant level to be low enough to starve coolant circulation to the heater hoses, which happen to be the highest point of the system.
I checked and it was a little over a quart low, we'll see what happens...Thanks JC
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