I have no heat in my truck. I have flushed the heater core and still no heat. I did change my thermostat and both hoses are hot going in and out of the core, but it is not blowing heat in the truck.
By Mike
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I've got a 2000 F150 with the same issue. I am flushing the heater core this weekend as I believe I have a partially clogged core.
Also, I'm doing the air blend door actuator, sounds like the air blend door actuator may be your issue. It's a $30 part you may pull yours off and check that. It's located behind that black panel, down where your air for your feet comes from. It's black and white, if you need I can send you a pic.
I have a 2008 f150 v6 I started out with no heat
,put a new thermostat and flushed heater coil, worked great a couple days and it got 20° and it takes a long time for temp gauge to rise and for heat to get hot..help..
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