Question about 1985 Ford F150

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No hot air from heater, fan works, air conditioner works

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Check and see that there is heat in both heater hoses going to and from your heater.It is shows that you are getting a flow through the heater core.
If the hoses are not both hwarm then you may have restricted flow either in the hoses, the control valves or in the core.
I they are both warm then check the following.
I had a cold car that the hoses were reversed on and the hot water was going into the top of the heater core. I solved the problem by reversing the heater hoses to have the hot water going into the core on the botton and returning to the motor thru the top line.
Good Luck

Posted on Aug 11, 2008

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Posted on Jan 02, 2017

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