# heat?

**URL:** <https://forums.speedlife.net/t/heat/145859>\
**Category:** Canada Nissan Automotive\
**Created:** [February 13, 2007, 9:08pm UTC](https://forums.speedlife.net/t/heat/145859 "2007-02-13T21:08:32Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![altimaman](https://avatars.discourse-cdn.com/v4/letter/a/b782af/32.png) [@altimaman](https://forums.speedlife.net/u/altimaman)\
**Post date:** [February 13, 2007, 9:08pm UTC](https://forums.speedlife.net/t/heat/145859/1 "2007-02-13T21:08:32Z")

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my car on’t heat up all that much, for example, this morning i started my car and let it run for 15 minutes, before getting in,then i have to drive out to the international air port, i work by there, and my car still has not warmed up yet, why? what is the first thing to look into? now another questions, when i have the setting on face/foot, the face blows warm and the foot blows ice cold? what is happening? where do i start? i was thinking maybe starting with the thermostate and fluid, but i would’nt see how that would fix the problems especially the second one, any suggestions?

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**Author:** ![BlueTurboEGG](https://avatars.discourse-cdn.com/v4/letter/b/13edae/32.png) [@BlueTurboEGG](https://forums.speedlife.net/u/BlueTurboEGG)\
**Post date:** [February 14, 2007, 9:47am UTC](https://forums.speedlife.net/t/heat/145859/2 "2007-02-14T09:47:38Z")

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Heater core? \<stab into darkness\>

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**Author:** ![DoubleDown](https://avatars.discourse-cdn.com/v4/letter/d/e47774/32.png) [@DoubleDown](https://forums.speedlife.net/u/DoubleDown)\
**Post date:** [February 14, 2007, 10:25am UTC](https://forums.speedlife.net/t/heat/145859/3 "2007-02-14T10:25:00Z")

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Yeah I’d guess heater core too, just because of that second problem. The first one might be a thermostat that’s stuck open and the fluid can’t get warm enough to blow anything but warm air. Tomorrow morning try throwing a piece of cardboard in front of your rad and see if it still won’t warm up.

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**Author:** ![altimaman](https://avatars.discourse-cdn.com/v4/letter/a/b782af/32.png) [@altimaman](https://forums.speedlife.net/u/altimaman)\
**Post date:** [February 14, 2007, 2:59pm UTC](https://forums.speedlife.net/t/heat/145859/4 "2007-02-14T14:59:39Z")

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ok thanks, ill try and let you know the diff

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**Author:** ![PyreXXX](https://avatars.discourse-cdn.com/v4/letter/p/bbe5ce/32.png) [@PyreXXX](https://forums.speedlife.net/u/PyreXXX)\
**Post date:** [February 14, 2007, 9:32pm UTC](https://forums.speedlife.net/t/heat/145859/5 "2007-02-14T21:32:42Z")

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Actually it could also be the blend door in the heating system if you are seeing actual heat in one part of the system and not in another.

Most of the cars that we see develop no heat these days have bubbles in the cooling system, so check that your coolant isn’t low. If it is, top it up and “burp” the system by squeezing the upper rad hose repeatedly with the rad cap off and keep topping the rad up as the fluid goes down. Failing that, you could always bring it in for a rad flush/fill. 🙂