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2013 1.6L EcoBoost SE, Tuxedo Black
449 Posts
Discussion Starter · #1 ·
Hi all,

There are a few threads here on FE.org regarding the blower motor resistor's location and a means of changing it, but with the resources here as well as other videos on the web, I didn't see many if at all that actually showed the resistor in place, or where the screw is to remove and replace it. It is tricky to find with limited visibility and even harder to access if you don't know what can be removed to buy you more space.

A YouTuber named Lucien had just done his resistor replacement and asked if we had any tips on the procedure as it took him a while- we hadn't done it before, but took a stab at it and wanted to share our learning curve as well as extra background info and tips on part numbers, how it's mounted, tips for better access, and tools that help the job a great deal.

It's not an overly complex job, but it is hard to get to and very difficult to get visibility on the resistor.

ISSUE: If your blower fan only runs on max speed, or only on one setting but not others, it is likely your blower motor resistor that needs the replacement.

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  • Both parts above have the same securement method - tuck tab and a T20 torx screw. See below:
    Circuit component Product Font Passive circuit component Technology

  • A Tip Not Stated in the Video: Resistor Will Heat Up When In Use (Common Knowledge, but just FYI)
    • Both parts get hot on the back side (non wire harness side) and are intentionally inserted into the air duct to help them stay cool.
    • If you replace the resistor / control module, it is a good idea to test the new component before doing the work to reinstall it 100%.
    • While testing, it can and may get hot, but just make sure to let it cool again before reinstalling into the duct and the shown location.
  • The blower motor resistor is located very close to the blower motor, which is up, inside the driver's foot well in the upper right corner against the HVAC system (arrow with red box). The Blower Motor Control Module (Auto HVAC) will have 2 wire harnesses. The Blower Motor Resistor (Manual HVAC) only has one wire harness. The accelerator pedal does get in the way (lower left arrow below)
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  • It is very low visibility to see the entire component, let alone the T20 torx. There is a lot of "feeling" and reaching for these parts. We did our best in the tutorial below to show what you're looking for. See specifically the noted "scoop" or clearance channel in the plastic for the T20 torx and a driver- this will help your hand find the screw.
  • TIP: If you remove the accelerator pedal from the floor (only QTY 2 x 10mm nuts), it will give your arm MUCH more room to work and access the resistor and T20 screw.
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  1. Slide the seat all the way back for as much room as possible

  2. Using the flex extension and 90deg angle adapter was VERY helpful to be able to twist the driver remotely while only having to apply pressure to the screw from the side up in the working area. A palm driver with hex receptacle would work ok as well if you can fit it up there, but there's just not a lot of room in general.
    1. NOTE: I bought the cheapest flex extension with 90deg adapter I could find on Amazon and the 90deg component fell apart in my hands while recording this video. It was not well made at all. That's why I linked the DeWalt brand adapter and flex extension as it is much likely a more reliable tool and you can keep using it for other things after this job is done as well.
  3. When the resistor is removed, just remove the T20 torx screw then and reinstall it after the new resistor is back in place. Trying to install the new resistor with the T20 torx screw in place is nerve racking as it can fall out at any time and go behind the sound deadening material, or get lost anywhere else.
    1. NOTE: We actually show a tip in the video that's really simple to keep the T20 torx attached to the driver bit just to get it started in the plastic. Then return with the driver and finish the hand tightening. A lot less stress...
  4. It was somewhat difficult to get the resistor/control module back up into that back corner in the footwell- just be mindful to not force anything when getting the tuck tab into the locating slot around the seating area. When the tab is in the slot, the physically hard part is done. Just rock it down, and go in with the screw.

Hope this is helpful! Please leave a comment with any other tips or constructive criticism to help clarify
-Richard (Rahrena)

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