I just bought an 05 F150 Supercrew FX4 and the whole time i drove it home i ran the ac and it worked perfectly. Well when i put my kids in the truck and i started it and ran the ac for them so it would cool down while i was putting stuff in the bed. Well when i came back it was hotter in the cab that it was outside. So when i came home i let the ac run full blast and it was comming out kind of cool and then it started to come out a little warmer. So i thought the freon in the system was just a little low and decided to go get a recharge kit. When i hooked the ac recharge kit up the gauge read that the system was fully charged. Then i went in the cab and the air was blowing out ice cold.
I tried to do some research and i pulled up the temperature blend door actuator and thought this may be the problem. Also i have the electronic manual temperature control.
this is some information i have from another forum
EATC - INTERMITTENT WARM AIR
TEMPERATURE SET 68-72 F (18-22 C) EMTC -
INABILITY TO CONTROL TEMPERATURE OUTPUT FORD:
2005-2008 F-15O LINCOLN:
2006-2008 Mark LT ISSUE
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 ****. Some customers may also complain the heat cannot be reduced without rotating the control **** well into the Cool/Blue range. ACTION
Refer to the following Service Procedure to correct the condition. SERVICE PROCEDURE
The condition may be caused by a faulty temperature blend door actuator. 1. Check actuator activity. a. EATC systems may be monitored with the IDS PID (LBLNDPOS). b. EMIC systems may be observed through the right side of the instrument panel with the glove compartment door positioned downward. 2. 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
Parts Block 9l3z-19e616-e Actuator - Motor Assembly
WARRANTY STATUS: Eligible Under Provisions Of New Vehicle Limited Warranty Coverage
: Warranty coverage limits/policies are not altered by a TSB. Warranty coverage limits are determined by the identified causal part. OPERATION DESCRIPTION TIME
082306A 2005-2007 F-150, 0.7 Hr.
2006-2007 Mark LT:
Replace The Temperature
Blend Door Actuator. (Do
Not Use With 19700D,
082306A 2008 F-150, 2008 Mark 0.5 Hr.
LT: Replace The
Temperature Blend Door
Actuator. (Do Not Use
With 19700D, 19700D6,
19616C, 12650D) DEALER CODING CONDITION
BASIC PART NO. CODE
i just want some feedback as to what might be the real problem so i can see if i can fix it myself rather than pay a mechanic a lot of money for something i can do myself. Any information would be greatly appreciated!