Technical Service Bulletins
|Publication Date: November 3, 2008|
|2006-2008 Mark LT|
Some 2005-2008 F-150 and 2006-2008 Mark LT vehicles equipped with Electronic Automatic Temperature Control (EATC) may exhibit intermittent periods of warm air output in Auto mode with the temperature control set between 68-72 degrees Fahrenheit (18-22 degrees Celsius). Some 2005-2008 F-150 vehicles equipped with Electronic Manual Temperature Control (EMTC) may exhibit periods where the cabin temperature cannot be maintained with the control knob. Some customers may also complain the heat cannot be reduced without rotating the control knob well into the Cool/Blue range.
Refer to the following Service Procedure to correct the condition.
The condition may be caused by a faulty temperature blend door actuator.
- Check actuator activity.
- EATC systems may be monitored with the IDS PID (LBLNDPOS).
- EMTC systems may be observed through the right side of the instrument panel with the glove compartment door positioned downward.
- Erratic PID activity or an actuator that appears to be erratically hunting for correct position during the condition should be replaced. Refer to Workshop Manual, Section 412-01, for removal and installation details.
NOTE: THE IGNITION KEY MUST BE OFF WHEN REPLACING THE ACTUATOR. ENERGIZING THE ACTUATOR BEFORE INSTALLATION ON THE HEATING VENTILATION AIR CONDITIONING (HVAC) CASE WILL CAUSE THE PART TO BECOME MISS POSITIONED AND CORRECT ORIENTATION WILL BE LOST. INCORRECT ACTUATOR OPERATION MAY RESULT.
|PART NUMBER||PART NAME|
|9L3Z-19E616-E||Actuator – Motor Asy|
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.
|082306A||2005-2007 F-150, 2006-2007 Mark LT: Replace The Temperature Blend Door Actuator. (Do Not Use With 19700D, 19700D6, 19616C, 12650D)||0.7 Hr.|
|082306A||2008 F-150, 2008 Mark LT: Replace The Temperature Blend Door Actuator. (Do Not Use With 19700D, 19700D6, 19616C, 12650D)||0.5 Hr.|
|BASIC PART NO.||CONDITION CODE|