August 19th, 2009, 03:30 PM
Join Date: Jul 2009
Location: St Petersburg Fl
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Climate Control problem on later model fords?
Anyone have any problems with their climate control in the later model fords? I keep my cab set on auto around 67 or 68 degrees. On a trip recently - the outside temp was around the same temperture. With the AC on - sometimes the truck would start blowing warm air then switch to cold and switch to warm - with the cab feeling like it was around 72 or 73...
This happens on another buddy's 2007 ford f150 and in my parent's 2007 mercury mariner.
Mine's an 08 - so if a sensor has gone bad already - i would be surprised.
Any TSB's on this or other possible solutions?
Edit - Found this TSB somewhere else:
EATC - INTERMITTENT WARM AIR OUTPUT TEMPERATURE SET 68-72 F (18-22 C)EMTC - INABILITY TO CONTROL TEMPERATURE OUTPUT
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 NUMBERPART NAME9L3Z-19E616-EActuator - 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.
OPERATIONDESCRIPTIONTIME082306A2005-2007 F-150, 2006-2007 Mark LT: Replace The Temperature Blend Door Actuator. (Do Not Use With 19700D, 19700D6, 19616C, 12650D)0.7 Hr.082306A2008 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 CODE19E61642
NOTE: The information in Technical Service Bulletins is intended for use by trained, professional technicians with the knowledge, tools, and equipment to do the job properly and safely. It informs these technicians of conditions that may occur on some vehicles, or provides information that could assist in proper vehicle service. The procedures should not be performed by "do-it-yourselfers". Do not assume that a condition described affects your car or truck. Contact a Ford, Lincoln, or Mercury dealership to determine whether the Bulletin applies to your vehicle. Warranty Policy and Extended Service Plan documentation determine Warranty and/or Extended Service Plan coverage unless stated otherwise in the TSB article. The information in this Technical Service Bulletin (TSB) was current at the time of printing. Ford Motor Company reserves the right to supercede this information with updates. The most recent information is available through Ford Motor Company's on-line technical resources.
Copyright © 2008 Ford Motor Company
Last edited by TedC; August 19th, 2009 at 03:44 PM.
Reason: TSB Found