# 1999 Ford Expedition heater blows cold air

**URL:** <https://community.cartalk.com/t/1999-ford-expedition-heater-blows-cold-air/172924>\
**Category:** Maintenance/Repairs\
**Tags:** ford, expedition\
**Created:** [December 3, 2020, 2:04am UTC](https://community.cartalk.com/t/1999-ford-expedition-heater-blows-cold-air/172924 "2020-12-03T02:04:10Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Mark-506](https://avatars.discourse-cdn.com/v4/letter/m/a587f6/32.png) [@Mark-506](https://community.cartalk.com/u/Mark-506)\
**Post date:** [December 3, 2020, 2:04am UTC](https://community.cartalk.com/t/1999-ford-expedition-heater-blows-cold-air/172924/1 "2020-12-03T02:04:10Z")

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heater will not heat.heater blows cold air.

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**Author:** ![davepsinbox\_157004](https://avatars.discourse-cdn.com/v4/letter/d/73ab20/32.png) [@davepsinbox\_157004](https://community.cartalk.com/u/davepsinbox_157004)\
**Post date:** [December 3, 2020, 3:34am UTC](https://community.cartalk.com/t/1999-ford-expedition-heater-blows-cold-air/172924/3 "2020-12-03T03:34:28Z")

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One possibility is that there’s air trapped in the heater core. A cooling system flush, correctly done, should take care of it. What does the temperature gauge indicate? Is the engine reaching normal operating temperature?

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**Author:** ![Purebred](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/purebred/32/46796_2.png) [@Purebred](https://community.cartalk.com/u/Purebred)\
**Post date:** [December 3, 2020, 11:24am UTC](https://community.cartalk.com/t/1999-ford-expedition-heater-blows-cold-air/172924/4 "2020-12-03T11:24:00Z")

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Malfunctioning blend door?

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**Author:** ![pyrolord314](https://avatars.discourse-cdn.com/v4/letter/p/6a8cbe/32.png) [@pyrolord314](https://community.cartalk.com/u/pyrolord314)\
**Post date:** [December 3, 2020, 3:42pm UTC](https://community.cartalk.com/t/1999-ford-expedition-heater-blows-cold-air/172924/5 "2020-12-03T15:42:07Z")

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Is the coolant level where it’s supposed to be?
