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Thread: EATC Blend Door Actuator

  1. #46
    Join Date
    Sep 2005
    Location
    APPLE VALLEY,CA
    Age
    59
    Posts
    1,366
    Currently, my floor and defrost are blowing out the vents. The heat will only come on when the engine is fully warmed otherwise it is cold.
    My A/C is also working properly.
    My 04 is 16 years old. I replaced the Blend Door Actuator in it about 8 years ago.
    The WORST part Ford Makes. Plastic gears break. My '97 Continental needed it twice, and I replaced my MKS's for a second time last year. (The MKS has 3 blend door actuators. The one that needed replacing twice was right behind the glove box.)

  2. #47
    Join Date
    Jan 2004
    Location
    Somewhere in the N.C. Triangle
    Age
    68
    Posts
    26,250
    Run the EATC self-test. let us know what codes you receive.
    “When you can’t make them see the light, make them feel the heat.”
    Ronald Regan

    "The only way to deal with the Islamic State - these blood thirsty, blood-drunken, terrorists -
    is to kill them, keep on killing them, until you kill the last one, then you kill his pet goat."

    Lt. Colonel Ralph Peters

    “Be polite, be professional, but have a plan to kill everybody you meet.”
    "I come in peace. I didn't bring artillery. But I'm pleading with you, with tears in my eyes, if you **** with me, I'll kill you all"
    General James Mattis




  3. #48
    Join Date
    Sep 2005
    Location
    APPLE VALLEY,CA
    Age
    59
    Posts
    1,366
    Can you remind me how to do it?


    Sent from my iPhone using Tapatalk

  4. #49
    Join Date
    Nov 2012
    Location
    Sacramento
    Posts
    3,737
    Cali Marauders, I have same issue. Maybe we can get together and do all three!


    2003 300A Black, #4918 of 7838, 17,400 Miles
    Tune, KYB's, JLT, FlowMaster 42441, Res Delete, New BFG's, 8 coats of zymoil Titanium

    2003 300B Silver Birch, #21 of 419, 29,800 miles
    Tune, JLT, FlowMaster 42441 Res Delete, New Nitto 235/255 Bigcarsforever dead peddle & custom SRP peddles, 5 coats Zymoil Titanium, Addco front and rear sway bars, KYBs, 1/2 inch coil cut, Sparta Watts link and Control Arms, Carfixer alignment.

    2003 CV Sport Matador Red, 19,280 Miles, DD, Curless Full Service Royal flush, Marto Tune, 18 Chrome Wheels w 235/265 front/back Nitto tires, NEW OEM Sport Springs -1 coil & Monroe Severe Duty (front) shocks, Addco front and rear sway bars, KYB rear Shocks, Carfixer Alignment.

    2004 CV HPP Silver Birch, 93,000 miles. Son's DD, 18 Chrome Wheels w 235/265 front/back Nitto tires (thank you Lowndex!)

  5. #50
    Join Date
    Jan 2004
    Location
    Somewhere in the N.C. Triangle
    Age
    68
    Posts
    26,250
    Quote Originally Posted by BLACKMARAUDER04 View Post
    Can you remind me how to do it?


    Sent from my iPhone using Tapatalk
    https://www.mercurymarauder.net/foru...-HVAC-PROBLEMS
    “When you can’t make them see the light, make them feel the heat.”
    Ronald Regan

    "The only way to deal with the Islamic State - these blood thirsty, blood-drunken, terrorists -
    is to kill them, keep on killing them, until you kill the last one, then you kill his pet goat."

    Lt. Colonel Ralph Peters

    “Be polite, be professional, but have a plan to kill everybody you meet.”
    "I come in peace. I didn't bring artillery. But I'm pleading with you, with tears in my eyes, if you **** with me, I'll kill you all"
    General James Mattis




  6. #51
    Join Date
    Sep 2005
    Location
    APPLE VALLEY,CA
    Age
    59
    Posts
    1,366
    Thanks for the link again.

  7. #52
    Join Date
    Nov 2012
    Location
    Sacramento
    Posts
    3,737
    Have same issue. Air through correct vents, but all cold all the time (not hot). Searched MN.net (thank you all), CV.net, and UTube.

    Ran the EATC test and popped code 24 or 024 = Blend Door.

    Had read somewhere to adjust temp to different numbers (most drivers have a cold number and a hot number they use predominantly), and near end of EATC test to "jostle" the blend door unit. I adjusted my temp from 90 down to 75, and ran the test again.

    As it went through its "test" I jostled the dash and unit and it adjusted! 75 degree Air now through defrost. Notes then said to unplug unit ? when at desired temp, to keep it set there until unit can be replaced.

    I stopped while I was ahead (as it was getting dark), as I can now defrost windshield AND not cook at 90 all day everyday. Will see about unplugging unit today.

    Still need to change out unit. Ordered new OEM part today $48 shipped.

    Hope this helps a little... real time share of data found online, and actual first had application result.
    Last edited by 1Marauder; 01-05-2021 at 10:06 AM.


    2003 300A Black, #4918 of 7838, 17,400 Miles
    Tune, KYB's, JLT, FlowMaster 42441, Res Delete, New BFG's, 8 coats of zymoil Titanium

    2003 300B Silver Birch, #21 of 419, 29,800 miles
    Tune, JLT, FlowMaster 42441 Res Delete, New Nitto 235/255 Bigcarsforever dead peddle & custom SRP peddles, 5 coats Zymoil Titanium, Addco front and rear sway bars, KYBs, 1/2 inch coil cut, Sparta Watts link and Control Arms, Carfixer alignment.

    2003 CV Sport Matador Red, 19,280 Miles, DD, Curless Full Service Royal flush, Marto Tune, 18 Chrome Wheels w 235/265 front/back Nitto tires, NEW OEM Sport Springs -1 coil & Monroe Severe Duty (front) shocks, Addco front and rear sway bars, KYB rear Shocks, Carfixer Alignment.

    2004 CV HPP Silver Birch, 93,000 miles. Son's DD, 18 Chrome Wheels w 235/265 front/back Nitto tires (thank you Lowndex!)

  8. #53
    Join Date
    Jan 2004
    Location
    Somewhere in the N.C. Triangle
    Age
    68
    Posts
    26,250
    Quote Originally Posted by 1Marauder View Post
    Have same issue. Air through correct vents, but all cold all the time (not hot). Searched MN.net (thank you all), CV.net, and UTube.

    Ran the EATC test and popped code 24 or 024 = Blend Door.

    Had read somewhere to adjust temp to different numbers (most drivers have a cold number and a hot number they use predominantly), and near end of EATC test to "jostle" the blend door unit. I adjusted my temp from 90 down to 75, and ran the test again.

    As it went through its "test" I jostled the dash and unit and it adjusted! 75 degree Air now through defrost. Notes then said to unplug unit ? when at desired temp, to keep it set there until unit can be replaced.

    I stopped while I was ahead (as it was getting dark), as I can now defrost windshield AND not cook at 90 all day everyday. Will see about unplugging unit today.

    Still need to change out unit. Ordered new OEM part today $48 shipped.

    Hope this helps a little... real time share of data found online, and actual first had application result.
    Most of the time running the self-test multiple times will "reset" the actuator. It will continue to work for a time.
    “When you can’t make them see the light, make them feel the heat.”
    Ronald Regan

    "The only way to deal with the Islamic State - these blood thirsty, blood-drunken, terrorists -
    is to kill them, keep on killing them, until you kill the last one, then you kill his pet goat."

    Lt. Colonel Ralph Peters

    “Be polite, be professional, but have a plan to kill everybody you meet.”
    "I come in peace. I didn't bring artillery. But I'm pleading with you, with tears in my eyes, if you **** with me, I'll kill you all"
    General James Mattis




  9. #54
    Join Date
    Dec 2020
    Location
    Los Angeles California
    Posts
    38
    What tools are needed for this job?

  10. #55
    Join Date
    Jan 2004
    Location
    Somewhere in the N.C. Triangle
    Age
    68
    Posts
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    Quote Originally Posted by Pantera View Post
    What tools are needed for this job?
    Small offset ratchet and 5/16 socket for the actuator. More if your going to take the dash part of the way out.
    “When you can’t make them see the light, make them feel the heat.”
    Ronald Regan

    "The only way to deal with the Islamic State - these blood thirsty, blood-drunken, terrorists -
    is to kill them, keep on killing them, until you kill the last one, then you kill his pet goat."

    Lt. Colonel Ralph Peters

    “Be polite, be professional, but have a plan to kill everybody you meet.”
    "I come in peace. I didn't bring artillery. But I'm pleading with you, with tears in my eyes, if you **** with me, I'll kill you all"
    General James Mattis




  11. #56
    Join Date
    Jan 2013
    Location
    Port Credit, Ontario, Canada
    Age
    64
    Posts
    18
    I just graduated! On blend door Wasn’t that bad at all, after I thought “why didn’t I do this a year ago?”

  12. #57
    Join Date
    Dec 2021
    Location
    Cape Coral, Fl
    Age
    41
    Posts
    183
    I'm wondering, with all the ingenuity here, why doesn't someone make and sell a replacement gear for the actuator made of brass or aluminum?

    Sent from somewhere near my Marauder using Tapatalk

  13. #58
    Join Date
    Jan 2004
    Location
    Somewhere in the N.C. Triangle
    Age
    68
    Posts
    26,250
    The cost of the gear would outweigh the cost of a new actuator.
    “When you can’t make them see the light, make them feel the heat.”
    Ronald Regan

    "The only way to deal with the Islamic State - these blood thirsty, blood-drunken, terrorists -
    is to kill them, keep on killing them, until you kill the last one, then you kill his pet goat."

    Lt. Colonel Ralph Peters

    “Be polite, be professional, but have a plan to kill everybody you meet.”
    "I come in peace. I didn't bring artillery. But I'm pleading with you, with tears in my eyes, if you **** with me, I'll kill you all"
    General James Mattis




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