Heat Wont Work - Chevy Cobalt Forum / Cobalt Reviews / Cobalt SS / Cobalt Parts
Problems and Service Talk about any mechanical problems you are having

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post #1 of 11 (permalink) Old 10-16-2011, 07:25 PM Thread Starter
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Heat Wont Work

Hello
My heater core gets realty hot so its not that. What else could it be? please help
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post #2 of 11 (permalink) Old 10-16-2011, 07:49 PM
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Is the heater/ac blower fan working?

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post #3 of 11 (permalink) Old 10-16-2011, 08:05 PM Thread Starter
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yes the ac works great it blows hard everything works like it should except for the heat, also the engine running at normal temps
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post #4 of 11 (permalink) Old 10-17-2011, 07:00 AM
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Markiemark998,

No heat? Thatís no good! Sorry to hear about this concern, especially as the weather cools down (if you live in the frozen north, anyways!).

My recommendation would be for you to bring your car into your servicing dealership for them to take a look at.

Best!
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post #5 of 11 (permalink) Old 10-17-2011, 10:30 PM Thread Starter
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wow what a great idea!! why would i waste my time on a fourm when its soooooooooooooooooo much easyer to bring it into a gm shop. Thanks
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post #6 of 11 (permalink) Old 10-18-2011, 08:32 AM
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Hello again Markiemark998,

I have seen a lot of great feedback on forums in regards to vehicle concerns. From GMís viewpoint, we are striving to achieve better customer service and our dealerships are our eyes and ears into whatís happening on vehicle concerns. Thus my recommendation.

I do wish you the best in getting your heat concern taken care of, whichever resolution you select. If, now or in the future, you would like to work with GM Customer Assistance in resolving a vehicle concern, please get in contact with us here via private message.

Thanks,
Sarah
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post #7 of 11 (permalink) Old 10-18-2011, 08:58 AM
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What a job that must be to have... Make a account as customer service and tell every repair thread to take it to the dealer!

Not all of us want to pay a dealer 80 bucks an hour lol



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post #8 of 11 (permalink) Old 10-18-2011, 04:00 PM
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If heater core (as you say) is hot, and the blower system is working correctly, it almost HAS to be a heat/vent/ac door not opening/closing correctly. Such as a vacuum valve not allowing the blown heater core air from reaching the vents/cabin. Also check cabin air filter. Won't cause this, but will effect it. Does nothing come fron vents or it blows correctly and air is cold?
Also, make sure you check radiator coolant level.

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post #9 of 11 (permalink) Old 10-19-2011, 07:15 AM
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Quote:
Originally Posted by SummitBalt08 View Post
What a job that must be to have... Make a account as customer service and tell every repair thread to take it to the dealer!

Not all of us want to pay a dealer 80 bucks an hour lol
Or take off of work to take it in (and Saturday is usually always just an oil change day, so that is out of the question).

Anyways, as far as heat, if the heater core is getting hot and the HVAC fan works, I'm gonna agree with 423. Possibly debris, a jammed door or as 423 mentioned a bad vacuum valve.


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post #10 of 11 (permalink) Old 10-19-2011, 09:55 AM
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When's the last time you changed/flushed your coolant?? Gummed up thermostat??
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