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I just got a CPO '03 Explorer Sport after trading in my '99.
After searching this particular forum, I'm surprised that only one person has brought up this issue (last year with no replies!) since it is apparently a fairly common one (my '99 had it and my sister has it with her '99 4-door).
The problem is not at all with the actual heater, but the left floor vent which is directed squarely on my gas-pedal foot. After the heater gets warm enough, my foot will get so hot that I have to lower the temperature and turn down the fan, the point at which is nowhere near cabin comfort --so either I freeze or my foot burns.
Any suggestions? Ideas for perhaps creating some sort of jury-rigged diffuser?
When you select defrost, the air coming onto your foot should subsid as air is redirected to the windshield. Any change in the amount or volume of air?
Yes, the air does subside on my foot when selecting defrost.
Mind you, this entire phenomenon only occurs when my foot will be exclusively on the gas for an extended period of time --e.g. highway/freeway driving.
I could --however, if I'm not mistaken, does that position not automatically turn on the A/C? I'm pretty sure it does, as there are some heating positions that default to having the A/C on (for de-humidifying) and some that just use fresh air.
With that in mind, under the guise of trying to save on gas, I prefer turning on the A/C only when I need A/C.
That --and I shouldn't really HAVE to resort to doing that.
Yes, that enables the A/C, but it won't be on much, if at all, when it's cold out.
I've actually noticed this on my F150, too. It seems the designer wanted to "favor" the driver. I've accomodated it by turning down the temp a bit before the cabin is completely warm.
Any time you turn on the heat the ac is activated.
This is done to dry and clean the air the air before it gets heated. It prolongs the life of your heatear core and is better for your health. It also prevents compressor failure in the snow belt states. By activating the ac it won't lock up after months of non use.
This not something new, it's been being done since the mid 80's that I know of.
I thank you for your response, balddave, but I have to disagree with you. This '03 is my second Explorer Sport --the first being my '99-- and on both models (and this is in the owner's manuals), 2 out of the 7 modes --"vent" and "floor"-- do not activate the A/C compressor. This is definitely something I know about because those happen to be the 2 modes I use almost exclusively; and I think we can all agree that the A/C compressor is not something impossible to notice everytime it kicks on.
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