Having problems with your Cars & Trucks ?

I have a 2005 Altima SE 3.5 .. Whenever I stop and the heater is on, it blows cold air.However, when I drive the air becomes hot ?.. Any hints ? had anybody had the issue before ?

\015 Could it be the water pump ?\015 Posted / edited by AnonymousUser on : 18-02-2019

Answers :

The first thing i would do is check the coolant level when the engine is cold. When the coolant level gets low enough the first thing to stop working is the heater. If the coolant level is good than I would suspect a plugged heater core.

If the thermostat where stuck open you would notice that the temp gauge would read low. If the water pump was not working correctly the vehicle would be overheating.
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