# Heater problemm

**URL:** <https://community.cartalk.com/t/heater-problemm/109288>\
**Category:** Maintenance/Repairs\
**Tags:** charger, dodge\
**Created:** [November 10, 2017, 6:50pm UTC](https://community.cartalk.com/t/heater-problemm/109288 "2017-11-10T18:50:08Z")\
**Posts on this page:** 8\
**Page:** 1

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**Author:** ![icecajun](https://avatars.discourse-cdn.com/v4/letter/i/ee59a6/32.png) [@icecajun](https://community.cartalk.com/u/icecajun)\
**Post date:** [November 10, 2017, 6:50pm UTC](https://community.cartalk.com/t/heater-problemm/109288/1 "2017-11-10T18:50:09Z")

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Can having air in the coolant system cause the heater not to blow hot air?

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**Author:** ![Tester](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/tester/32/15976_2.png) [@Tester](https://community.cartalk.com/u/Tester)\
**Post date:** [November 10, 2017, 6:52pm UTC](https://community.cartalk.com/t/heater-problemm/109288/2 "2017-11-10T18:52:49Z")

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Yes.

Tester

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**Author:** ![the\_same\_mountainbike](https://avatars.discourse-cdn.com/v4/letter/t/c89c15/32.png) [@the\_same\_mountainbike](https://community.cartalk.com/u/the_same_mountainbike)\
**Post date:** [November 10, 2017, 9:16pm UTC](https://community.cartalk.com/t/heater-problemm/109288/3 "2017-11-10T21:16:57Z")

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> [@icecajun](#):
>
> Can having air in the coolant system cause the heater not to blow hot air?

Absolutely. And it’ll also cause inaccurate temp sensor readings leading to operating problems, uneven engine temps possibly leading to a warped head, and a host of other problems.

Why do you ask?

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**Author:** ![bing](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/bing/32/4619_2.png) [@bing](https://community.cartalk.com/u/bing)\
**Post date:** [November 10, 2017, 10:19pm UTC](https://community.cartalk.com/t/heater-problemm/109288/4 "2017-11-10T22:19:04Z")

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Agree but the question is why is there air in the system?

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**Author:** ![Tester](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/tester/32/15976_2.png) [@Tester](https://community.cartalk.com/u/Tester)\
**Post date:** [November 10, 2017, 10:31pm UTC](https://community.cartalk.com/t/heater-problemm/109288/5 "2017-11-10T22:31:16Z")

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It can be only one of two things.

Either the cooling system was serviced recently, and not properly purged of air.

Or, there’s a leak in the cooling system.

Tester

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**Author:** ![bing](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/bing/32/4619_2.png) [@bing](https://community.cartalk.com/u/bing)\
**Post date:** [November 10, 2017, 10:35pm UTC](https://community.cartalk.com/t/heater-problemm/109288/6 "2017-11-10T22:35:30Z")

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Or gulp, a head gasket.

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<div class="post-metadata">

**Author:** ![icecajun](https://avatars.discourse-cdn.com/v4/letter/i/ee59a6/32.png) [@icecajun](https://community.cartalk.com/u/icecajun)\
**Post date:** [November 11, 2017, 2:24pm UTC](https://community.cartalk.com/t/heater-problemm/109288/7 "2017-11-11T14:24:00Z")

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changed the thermostat. got hot air…lol

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**Author:** ![the\_same\_mountainbike](https://avatars.discourse-cdn.com/v4/letter/t/c89c15/32.png) [@the\_same\_mountainbike](https://community.cartalk.com/u/the_same_mountainbike)\
**Post date:** [November 11, 2017, 3:53pm UTC](https://community.cartalk.com/t/heater-problemm/109288/8 "2017-11-11T15:53:10Z")

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> [@icecajun](#):
>
> changed the thermostat. got hot air…lol

Congratulations. Sometimes it’s the simple stuff.  
Happy motoring.