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2007 - 2014 Expedition & Navigator 2007, 2008, 2009, 2010, 2011, 2012, 2013 and 2014 Ford Expedition and Lincoln Navigator

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  #1  
Old 07-25-2012, 04:59 PM
st381 st381 is offline
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2007 Exp Climate Control Fan acting erractically

Hi all,

The climate control fan for the front of my expy has started acting erratically. The fan will change speeds on its own or cut out for a few minutes. Does anyone know what the problem might be?
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  #2  
Old 07-25-2012, 07:43 PM
chuck s chuck s is offline
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What "climate control" system do you have?

-- Chuck
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  #3  
Old 07-30-2012, 12:02 AM
st381 st381 is offline
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2007 electronic climate control system. Driver and passenger zones, rear air, heated/cooled seats, digital display. Ford calls it the EATC or something similar.
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Old 07-30-2012, 12:05 AM
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5.4T 5.4T is offline
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what tempeture do you have it set too? on my navi i put 70 and the climate control slows down or changes depending on how hot it is outside
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  #5  
Old 07-30-2012, 10:00 AM
ptmares ptmares is offline
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Give this a shot. I bought the 9L3Z part number, and have had no issues with the A/C turning off or on. Bought it from Tousley Ford Parts Depot. Easy to replace. Remove glove box, and the resistor part is right there in view.

Per the dealer, I ordered part 9L3Z19E624B which is not the number in this TSB, but I thought I'd ask.
TSB


08-9-1
EATC BLOWER INTERMITTENTLY INOPERATIVE - STUCK ON HIGH/OFF
Publication Date: April 17, 2008
FORD:2007-2008 ExpeditionLINCOLN:2007-2008 Navigator

ISSUE:

Some 2007-2008 Expedition and Navigator vehicles equipped with Electronic Automatic Temperature Control (EATC) may exhibit a condition where the blower is inoperative no matter what speed or temp setting or the blower motor is stuck on high speed or off. Cycling the ignition may resume operation. The concern may also occur when using the electrical power point.
ACTION:

Follow the Service Procedure steps to correct the condition.
SERVICE PROCEDURE
Open the glove box and remove Connector C297 from the Heater Blower Controller Module (HBCM).
Remove the right front door scuff plate.
Remove the right side kick panel to gain access to Ground G200.
Cut black/white wire about 8" (20.3 cm) from C297. Strip the end 1/4" (6.3 mm).
Obtain pigtail kit and using the approved splicing methods found in the Wiring Diagram (WD), Cell 5, crimp the butt connector and seal (with shrink tubing) the splice between the 13" (33 cm) pigtail and the black/white wire from C297.
Disconnect the existing 14401 single ground eyelet from G200 and cut existing eyelet from the ground .
Strip 1/4" (6.3 mm) insulation from the 14401 ground wire.
Using the approved splicing methods found in the WD, Cell 5, crimp the butt connector and seal (with shrink tubing) the splice between the 3" (7.6 cm) pigtail and the 14401 wire.
Attach the new interlocked ground eyelet to G200. Torque to 11 ± 1.6 lb-ft (15 ± 2.3 N-m )
Install the right side kick panel and scuff plate.
Replace the HBCM.
Attach C297 to the HBCM.
Close the glove box door.
PART NUMBERPART NAME7L1Z-14S411-ABEyelet Wiring Pigtail Kit7C3Z-19E624-CHeater Blower Controller Module
WARRANTY STATUS:

Eligible Under Provisions Of New Vehicle Limited Warranty Coverage
IMPORTANT: Warranty coverage limits/policies are not altered by a TSB. Warranty coverage limits are determined by the identified causal part.

OPERATIONDESCRIPTIONTIME080901A2007-2008 Expedition/Navigator: Replace The HBCM, Includes Time To Isolate Ground (Do Not Use With 19700D8, 14200A)0.5 Hr.
DEALER CODING


That Heater blower control modual is the same as the electronic resistor.
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  #6  
Old 07-30-2012, 10:01 AM
ptmares ptmares is offline
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Re-posted, deleted now. See above, sorry.

Last edited by ptmares; 07-30-2012 at 10:02 AM. Reason: Re-post
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  #7  
Old 07-30-2012, 11:34 PM
st381 st381 is offline
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My wife just drove 115 mile with no front air conditioning. Gets home and the AC started blowing as normal. I ordered the part recommended and will make the repair. I took a quick look at the space behind the glove box and it looks like it will be an easy fix. Kind of a tight fit, but an easy fix none the less. Thanks to everyone that replied and I will post an update to let everyone know how it turns out!
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  #8  
Old 08-04-2012, 01:18 AM
st381 st381 is offline
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The recommended part came in today, $68 with shipping. It looks like it has been re-engineered when compared to the old EATC controller. Dropped the glove box door, and 10 minutes later was done with the switch out. Started the truck and AC blowing as it should. I wonder how much the dealership would have charged...........
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  #9  
Old 08-04-2012, 11:39 AM
ptmares ptmares is offline
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Glad to hear it worked out for you. Simple to replace. I have had my new part in for 3 months, and works beautiful.
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  #10  
Old 12-24-2012, 02:13 AM
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I had the exact same problem with my 2008 Navi. I also ordered the part from Tousley Ford. I replaced the part but did not mess with the wiring alterations as described in the TSB. I still have the same problem as before only now when the fan decides to work, it is on half speed even when set to high.

My question is, does anyone have pictures of what ground wire needs the alterations or have a diagram?
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Old 12-24-2012, 02:13 AM
 
 
 
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