Question about 2004 Ford F150

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2004 F150 Heater Vent Selector Problem

Air only blows from the panel vents, regardless of where I set the selector. I can see some kind of control assembly under the drivers side dash. It has two electrical connectors and an arm that appears to control an internal door. The arm does not move regardless of selector setting. Is that assembly what controls air flow to the vents? How can I test it? Other ideas? Thanks.

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  • Anonymous Jan 12, 2009

    I have the same problem with a 2008 F-150 FX4 that I bought new in February 2008. Took it to the dealership in March of 2008 and they told me that this is part of the new feature for 2008's...WRONG! It's January 2009 and I've got a service apt tomorrow for Ford to fix. My friend has the same truck, but the next day that I sold him on (but an FX2) and his vent and floor vents work just like the switch says it should...you turn on the floor vent on HIGH and "NO" air comes from the dash, whereas in my truck it's like a taste test because if you didn't see me turn my switch to floor you wouldn't know I did because all the air is coming through the dash vents still!



    Just FYI, I had Ford fix another dash motor in November of 2008...this one is in their systems and it's the one that controls the cold/heat regulator (the regulator door is getting stuck and they replace it along with the motor). Said it was a common feature...driving in the snow for an hour and you're constantly moving the furnance from all cold to all heat because the regulator is broken and only initiates if you engage it fully (which either burns you up or freezes you). My wife about killed me driving from WV in November snow to Texas on a road trip, making me regret trading in my Suburban for our FIRST Ford...ugh! But, I do love the FX4!

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The "blend door" or "mode selector door" is stuck. Common problem with Fords. Most auto repair places can fix it. I had mine done at Firestone.

Posted on Dec 30, 2008

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Air Flow Control
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Here is the info. I hope the pictures show up. please rate assistance. thx.

Air distribution within the vehicle is determined by the function selector switch position. Two airflow mode doors are used to direct airflow within the heater core and evaporator core housing. The function selector switch/cable assembly is used to position these airflow mode doors. Refer to Section 412-00 for description and operation of each of the system functions.
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Function Selector Cable Assembly
The function selector cable assembly moves the airflow mode doors to the desired position using a 2-sided pull-pull type cable assembly. The function selector controls the cable movement. The end of the cable assembly attaches to the airflow mode door/temperature blend door actuating assembly which transfers the cable movement to the 2 airflow mode doors.
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SECTION 412-01: Climate Control 2005 Focus Workshop Manual REMOVAL AND INSTALLATION Procedure revision date: 02/25/2004
Function Selector Switch adobe.gif Printable View (173 KB) Removal and Installation
  1. Remove the 4 bolts and position aside the lower steering column cover.
    a0093241.jpg
  1. Remove the function selector knob.
  1. Remove the center instrument panel finish panel.
    • Disconnect the cigar lighter electrical connector.
    a0093247.jpg
  1. Detach the function selector switch.
    1. Disconnect the electrical connector.
    1. Remove the screw and detach the function selector switch.
    n0037059.jpg
  1. Detach the function selector cable and remove the function selector switch/cable assembly.
    e0000109.jpg
  1. To install, reverse the removal procedure.

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