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Power Strokes
7.3 Tech
02 hvac issue
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[QUOTE="co04cobra, post: 877472, member: 666"] Behind the glove box the blend door actuator sets on top the heater box. 2 or 3 tabs hold it in place. You have to lightly pry up while pushing the tabs together to get it to pop out. Once you get it out, plug it back in and more your knob from hot to cold and see if its working. Other thing to do before that is confirm what the ECTs are at your upper and lower rad hoses and going in and out of heater core. If everything is good at both places the rheostat on the heater control itself occasionally goes bad. On edit: The a/c will and needs to cycle on every setting but floor only. [/QUOTE]
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