2002 Nissan Altima "heater hot air idling" Questions

...will happen. Water pump works faster as rpm's increase, managing to get hot coolant to heater core (highway speeds). At idle, pump is not working fast enough to get the coolant to the heater

...hot, fan on high speed I placed a thermometer in the vent. The air blowing out is cold at idle speed, but when engine RPM is increased the temperature will increase. When the engine is returned to ...

heater blows fine when the car is moving but when you come to a stop or the car idles, the heat disappears and blows cold air. have checked anti-freeze and it is full. any ideas? anyone? Hya! You need

heater only blows cold air when idleing but blows hot air when driving at highway speeds. coolant level is fine. you have air trapped in cooling system. Go to a shop that uses evacuate & fill ...

...tool use it .....this is the prefered method.let the vehicle idle while hot .sitting in vehicle listen by glove box to see if you hear the "waterfall"...if you do still has air in heater

...hot air blowing The fan blows fine on heater/air conditioner. The problem is that its only blowing lukewarm air not hot and not cold. Its a Nissan Altima 96. Hi! It appears we have an Air lock ...

...hot and and other is your heater core is clogged.I detached both inlet and outlet hoses to heater core from water control valve.Then I blasted water with waterhose and nozzle set at jet,first through ...

heater doesnt blow hot air while idling, whenever u drive the heat blow thermostat is pooched

...heater in my car will not work while in park or idling. But, as soon as I put my foot on the gas pedal, my car instantly blows hot air. But, if I stop at a red light, or if I place my car in park, it ...

...hot. Next check the return line from the heater if it is still cold or moch cooler than the inlet, the most possible problem is the heater water control valve if this model has one or possible the ...