Question about 2003 Nissan Maxima

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Can a water pump cause a car to not have heat inside the car

I have a 2000 buick lesabre and the heat to the inside of the car is not working

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  • miltongherna Jan 17, 2009

    i have a 1997 honda accord i aint got no heat.
    dont no what the problem could be. if is the core
    would it leak water from the inside of the car?


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Yes a bad water pump can keep heat from getting to the inside of the car. it circulates the water through the engine

Posted on Dec 14, 2008

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No, a bad water pump can not cause that. A bad water pump will leak coolant before it fails, and when it fails it will cause the engine to overheat. You will be spewing coolant out of your radiator cap, just noticing your heater isn't working.

Most likely either your heater core, hoses, or valve isn't working. The core or hoses could have become plugged with deposits and the valve may be stuck in one position. You can try using some radiator flush, it should be about $10 from the auto parts store, then change your coolant after that. When you move the switch from heat to cold, can you hear any ducts moving? If the radiator flush does not work I would have the heater core and valve checked to make sure hot coolant is being directed through the core when you turn on your heater.

Posted on Jan 04, 2009

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