Dismiss Notice

Register Today It's free! This box will disappear once registered!

Heat for defrost is not as hot as panel

Discussion in 'Stock 2006 -2010 Explorers' started by tmarat, January 1, 2014.

^^Searches ExplorerForum.com^^

  1. tmarat

    tmarat New Member

    May 1, 2011
    Likes Received:
    Trophy Points:
    City, State:
    Year, Model & Trim Level:
    2008 Ford Explorer 4.0
    When heater is put into defrost airflow, then the heat is not as hot as in panel airflow. Is this normal? I don't have clicking noises in front, though rear AC does click and requires replacing both temperature blend and direction control motors. But this is about front module.

    From what I understand there are four modules in front that control direction and temperature blend:
    1) 18A318 (YH-1652) HVAC Blend Door Motor; Manual Air Conditioning ; Defrost Airflow, Plenum Chamber
    2) 18A318A (YH-1653) HVAC Blend Door Motor; Manual Air Conditioning ; Panel Airflow
    3) 18A318A (YH-1654) HVAC Blend Door Motor; Manual Air Conditioning ; Floor Airflow
    4) 19E616 (YH-1744) HVAC Blend Door Motor; Manual Air Conditioning

    Based on this I assume heater blend door is located prior to direction control motors (by airflow). Then as I don't have issues with panel airflow, then the fact that it doesn't blow as much heat to the windshield is by design? In cold mornings I can see that panel airflow starts to blow hot air earlier than defrost.
    Last edited: January 1, 2014
  2. Support EF

    Join the Elite Explorers for $20

    Explorer Forum has probably saved you that much already, and will continue to save you money as you learn how to diagnose fix problems yourself and learn which modifications work without having to experiment on your own. Elite Explorer members see practically no ads, can add their own profile photo, upload photo attachments in all forums, and Media Gallery, create more private Conversations, and more. Join Today. Your support is greatly appreciated.

Share This Page

We Support Our Troops!