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2002 Nissan Quest Question: Heater



, 3.3L V6, Enfield, CT, November 21, 2010, 11:39

The heater and defrost work but no heat comes. The heat comes out only when driving. Why?

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  • Answer #1

    J4242 from Precision Auto Repair & Sales Inc, November 22, 2010, 10:50

    Most common reason that you will have heat when driving and not at idle is that there is an air pocket in the cooling system. This can be caused by a leak in the system. I would recommend that you have this checked out immediately. An air pocket in a cooling system can cause a large amount of damage if it's not caught early. Best of luck

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