There are some TSB's referring to these problems, here you go.

TSB 08-9-1

05/12/08
EATC BLOWER INTERMITTENTLY INOPERATIVE -
STUCK ON HIGH/OFF

FORD:
2007-2008 Expedition

LINCOLN:
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 motor 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
1. Open the glove box and remove Connector C297 from the Heater Blower Controller Module (HBCM).

2. Remove the right front door scuff plate.

3. Remove the right side kick panel to gain access to Ground G200.

4. Cut black/white wire about 8" (20.3 cm) from C297. Strip the end 1/4" (6.3 mm).

5. 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.

6. Disconnect the existing 14401 single ground eyelet from G200 and cut existing eyelet from the ground wire.

7. Strip 1/4" (6.3 mm) insulation from the 14401 ground wire.

8. 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.

9. Attach the new interlocked ground eyelet to G200. Torque to 11 +/- 1.6 lb-ft (15 +/- 2.3 N.m )

10. Install the right side kick panel and scuff plate.

11. Replace the HBCM.

12. Attach C297 to the HBCM.

13. Close the glove box door.



Parts Block
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.

OPERATION DESCRIPTION TIME

080901A 2007-2008 0.5 Hr.
Expedition/Navigator:
Replace The HBCM,
Includes Time To Isolate
Ground (Do Not Use With
19700D8, 14200A)

DEALER CODING

CONDITION
BASIC PART NO. CODE
19E624 42

TSB data for: 2007 FORD EXPEDITION
Bulletin Number: TSB-08-14-2
Sequence Number: 10026363
Date: 20081022
Component Name: 024000 SUSPENSION:AUTOMATIC STABILITY CONTROL (ASC)
Make: FORD
Model: EXPEDITION
Year: 2007
Summary:
FORD/LINCOLN: STABILITY/TRACTION CONTROL INDICATOR; SLIDING CAR ICON: ON OR FLASHING; DTC C1996 OR SENSITIVE ESC/RSC ACTIVATION NO CODES. AFFECT SOME 2007-2008 EXPEDITIONS AND NAVIGATORS. *PE