Thread: Heater problem
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Old 02-28-2017, 10:29 AM   #2
78F350
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Join Date: Jul 2014
Location: Oklahoma
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Garage
Quote:
Originally Posted by jeeper31 View Post
Just replaced water pump and thermostat. Flushed coolant out and added new. Now the heater takes a long time to get warm and never seems to get as hot as it should.

Opinions?
First guess is that the foam that covers the heater duct flaps is gone, so the air is not being forced through the heater core.
Check this thread: http://986forum.com/forums/performance-technical-chat/42802-interior-vent-debris.html
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