A/C - Excessive Side-To-Side Vent Temperature Differences
TSB 12-8-2208/29/12
EXCESSIVE TEMPERATURE DIFFERENCES
BETWEEN DRIVER TO PASSENGER INSTRUMENT
PANEL VENTS - BUILT ON OR BEFORE 2/2/2012
FORD:
2012 F-Super Duty
ISSUE
Some 2012 F-Super Duty vehicles equipped with Dual-Zone Electronic Automatic Temperature Control (EATC) or Electronic Manual Temperature Control (EMTC) and built between 10/17/2011 through 10/23/2011 and 1/22/2012 through 2/2/2012 may exhibit an excessive passenger to driver side to side temperature differences at the instrument panel vents. This may be caused by the blend door(s) not closing to the full stop position in the Heating Ventilation Air Conditioning (HVAC) case assembly.
ACTION
Follow the Service Procedure steps to correct the condition.
SERVICE PROCEDURE
1. Determine the vehicle build date. Refer to Workshop Manual (WSM), Section 100-01. Is the vehicle built between 10/17/2011 through 10/23/2011 and 1/22/2012 through 2/2/2012?
a. Yes - proceed to Step 2.
b. No - this article is not applicable, refer to the WSM, Section 412-00 for normal diagnostics.
2. Determine HVAC case molding manufacturing code. HVAC molding code is located on the HVAC lower cover portion and can be viewed by looking under the HVAC case, below the passenger side glove box. Is the HVAC case molding manufacturing code CAV2? (Figure 1)
a. Yes - proceed to Step 3.
b. No - this article is not applicable, refer to WSM, Section 412-00 for normal diagnostics.
3. Replace the HVAC case assembly. This article is only applicable to address the HVAC case blend door function. Refer to WSM, Section 412-00 for removal and installation of the HVAC case.
Parts Block
WARRANTY STATUS: Eligible Under Provisions Of New Vehicle Limited Warranty Coverage Warranty/ESP coverage limits/policies/prior approvals are not altered by a TSB. Warranty/ESP coverage limits are determined by the identified causal part and verified using the OASIS part coverage tool.
OPERATION DESCRIPTION TIME
120822A 2012 F-Super Duty 4.2 Hrs.
250/350 6.2L SRW:
Replace The Evaporator
Core Housing (Can Be
Claimed With Operation G)
(Do Not Use With Any
Labor Operation Outside
This TSB)
120822B 2012 F-Super Duty 4.3 Hrs.
350/550 6.2L/6.8L DRW:
Replace The Evaporator
Core Housing (Can Be
Claimed With Operation G)
(Do Not Use With Any
Labor Operation Outside
This TSB)
120822C 2012 F-Super Duty 4.3 Hrs.
250/350 6.7 SRW: Replace
The Evaporator Core
Housing (Can Be Claimed
With Operation G) (Do Not
Use With Any Labor
Operation Outside This
TSB)
120822D 2012 F-Super Duty 4.4 Hrs.
350/550 6.7L DRW:
Replace The Evaporator
Core Housing (Can Be
Claimed With Operation G)
(Do Not Use With Any
Labor Operation Outside
This TSB)
120822E 2012 F-Super Duty 4.5 Hrs.
250/350 6.7 SRW Aux
Heat: Replace The
Evaporator Core Housing
(Can Be Claimed With
Operation G) (Do Not Use
With Any Labor Operation
Outside This TSB)
120822F 2012 F-Super Duty 4.6 Hrs.
350/550 6.7L DRW AUX
Heat: Replace The
Evaporator Core Housing
(Can Be Claimed With
Operation G) (Do Not Use
With Any Labor Operation
Outside This TSB)
120822G 2012 F-Super Duty 0.4 Hr.
Additional Time To
Remove And Install The
Center Console If
Equipped Can Be Claimed
With Operations A-F (Do
Not Use With Any Labor
Operation Outside This
TSB)
DEALER CODING
CONDITION
BASIC PART NO. CODE
19B555 42
Disclaimer