TSB for replacing the blower control module?

Miekk · May 12, 2012

Do I really have to do do this TSB?

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

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.

sgtowing · May 13, 2012

Why not let them do it? They don't charge and you don't have to do the work.

Sent from my DROID BIONIC using Tapatalk 2

ptmares · May 13, 2012

I thought if your car was out of the factory warranty, you have to pay out of pocket for a TSB repair? Not covered under warranty.

Miekk · May 13, 2012

sgtowing said:
Why not let them do it? They don't charge and you don't have to do the work.

Sent from my DROID BIONIC using Tapatalk 2

It's my cost.

Cheapest dealer for parts btw: http://www.tousleyfordparts.com/

ptmares · May 13, 2012

Miekk said:
Do I really have to do do this TSB?

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

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.

Stupid question, but here go's anyway. Does replacing just the resistor fix the problem, or do you have to perform the wire cuts and splices? Any idea what Ford wants to complete the TSB?

sgtowing · May 13, 2012

Miekk said:
It's my cost.

Cheapest dealer for parts btw: http://www.tousleyfordparts.com/

It still costs you money. Tsb's are paid for by the dealer and it costs you nothing.

Sent from my DROID BIONIC using Tapatalk 2

Miekk · May 16, 2012

Update.

1) The old part number 7C3Z-19E624-C has been replaced by 9L3Z19E624B and no longer requires the rewiring TSB in previous posts.

2) $52 from Tousely Ford

3) TSB's are NEVER paid for by the dealer unless you are within your factory warranty, extended warranty that may have been added by Ford to the effected parts reguarding your particular situation or they are generous for whatever reason they deem fit.

Thank you.

ptmares · May 16, 2012

Miekk said:
1) The old part number 7C3Z-19E624-C has been replaced by 9L3Z19E624B and no longer requires the rewiring TSB in previous posts.

2) $52 from Tousely Ford

3) TSB's are NEVER paid for by the dealer unless you are within your factory warranty, extended warranty that may have been added by Ford to the effected parts reguarding your particular situation or they are generous for whatever reason they deem fit.

Thank you.

Thanks for the confirmation on the TSB's. I thought I was getting hosed by my dealership.
Guess I am getting that part to avoid my a/c going out this summer.

AggieFCO · May 21, 2012

Have a 2007 EB and two to three times in the past had the HVAC change air direction (defrost for example to upper or lower vents) and velocity (from low to high) without any direction. Earlier today, my wife complained that the HVAC changed vent location and even temperature without any command. It seems as though having the system on AUTO has no effect on when this happens. Is this TSB supposed to fix the problem? Thanks.

AggieFCO · May 23, 2012

Wednesday morning bump. Anyone got any ideas if my issues are related to this TSB ? Thanks.

Miekk · May 23, 2012

AggieFCO said:
Wednesday morning bump. Anyone got any ideas if my issues are related to this TSB ? Thanks.

Based on reading through the actual provided TSB, I'd say no.
Where it blows is not probably not related to how fast it blows. The best way is to bring it to your dealer, get it diagnosed and get a quote to fix it.

AggieFCO · May 23, 2012

Thanks. The only problem we have is that the problem is so infrequent that it would be impossible for the dealership to diagnose. Guess I'll just have to wait for something more frequent...or hopefully the problem will go away.

ptmares · May 25, 2012

Just replaced the Heater Blower Controller Module. Wish every part change was that easy. Now wait and see if it fixes the intermittent problem.

wadesdad · Jan 21, 2014

Eatc tsb

Wanted to take my wife's '10 Navigator to the "homeland" (Detroit, MI) for the '14 Autoshow, but her HVAC blower fan was intermittent. I did did my own version of the TSB with parts I had already -a red wire nut, black tape and a ring terminal to the wire and existing ground lug. I like to try the simplest solutions first. It worked great and was WAY cheaper than a new resistor. My thoughts were that the resistor was good because most of the time the fan worked as intended.

Discobee · Jun 8, 2014

I just wanna say thank you for this thread...I had this issue, ordered a new part via Amazon.com for $70, and then replaced the part following the instructions here. Very simple, took me just under 15 minutes to do.

Barjrob1972 · Jun 10, 2014

I just had the plugs changed and had the dealership do this TSB as well. My 07 EL was driving me nuts with the ETAC either turning off and then back on after a few seconds or sticking on high speed. I would have to kill the truck and restart to reset the system.
So far, so good.

rwmorrisonjr · Apr 13, 2015

Applicable for 2012?

Do I need to do the TSB for my 2012, or just replace the control module and be done with it?

Champdds · Jun 13, 2015

Miekk said:
1) The old part number 7C3Z-19E624-C has been replaced by 9L3Z19E624B and no longer requires the rewiring TSB in previous posts.

2) $52 from Tousely Ford

3) TSB's are NEVER paid for by the dealer unless you are within your factory warranty, extended warranty that may have been added by Ford to the effected parts reguarding your particular situation or they are generous for whatever reason they deem fit.

Thank you.

When I go to order the 9L3Z-19e624B that you mentioned is the replacement, I have advised on a we site that this is not compatible with my 2007 expedition el? Thoughts !

David

loelyf · Jul 17, 2015

Does this affect the rear air/blower at all? My rear blower has been intermittent for the last 2 years. Front cut out for the 1st time yesterday, but started working again a mile down the road.

Champdds · Jul 20, 2015

loelyf said:
Does this affect the rear air/blower at all? My rear blower has been intermittent for the last 2 years. Front cut out for the 1st time yesterday, but started working again a mile down the road.

They are two independent systems I believe..

I purchased a replacement module for the front system from Pep Boys (Got a good deal with online ordering discount)...part fit perfectly, but a little different operation from the OEM it seems...1) There is a delay of about 2 seconds after starting the ignition for the fan to start, and 2) If I put the fan speed on the very highest setting, the fan will shut off after about 3 seconds...I have to hit OFF and then adjust the fan speed down one level and it works fine...I little odd glitch from the original, but livable

David

TSB for replacing the blower control module?

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