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  • Heater controls.

    Well... this is a strange one. On my 05, the heater control on the drivers side controls the heat on the passenger side vents, and vice versa. I have tried to find a pictorial in the forums on what is involved in pulling the heater control panel without breaking things, and other unpleasantries. I would guess that by simply reversing the wiring plugs to the rocker switches from one side to the other, this issue would be solved. But I don't know quite how to proceed with accessing the area in question. I have only had the car for 5 days now... but I have done enough car repair to know that if you know the tricks, any job is much easier. Any help would be greatly appreciated.

  • #2
    How can you tell this is happening?
    02 Nieman Marcus-SS htp-f/sil. #165 - 21 states-DC
    02 TB-TB htp-p/blue acc.-Nancy Gioia-28 states-DC
    03 007-Coral htp-f/white acc. #468 7 states
    03 WW-WW htp-p/red 8 states
    04 VMG-VMG htp-p/white - 20 states-DC
    04 Merlot- Merlot htp-sand- B. Grassnig-48 states-DC
    04 TR-TR htp-blk 20 states-DC
    04 LIB-LIB htp-p/white 16 states-DC
    05 Cashmere htp-stone #408 21 states-DC
    05 Dusk Rose-DR htp-cashmere seats - 48&DC
    05 IG-IG htp-p/white #82
    - 48&DC

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    • #3
      Could you have the dual control on? Here's a PDF of the owners manual in case you don't have one.
      https://manuals.co/workshop/ford/thu...manual/3412/22
      Life without passion is no life at all.
      Sean Combs

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      • #4
        Is it that or does one side always blow hot and the other cold?

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        • #5
          The hot and cold controls both work on opposite sides. Turn up the drivers side heat, the passenger side gets hot. Turn it down, it cools. And vice versa. They both independently work as they should. The dual control is not on. I do have the owners manual. I will check the other functions to see if they are also reversed... Stay tuned.

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          • #6
            I know I sound like a broken record but it could be that darn Dual Heater control valve. It is a Jaguar design and when the valves stick you get all kinds of weird temperatures. Another thought occurred to me, you say you have only owned the car for a short time. Perhaps the valve I refer to was replaced backwards. If the installer was unfamilar with Tbirds it could happen.
            sigpic

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            • #7
              OK, it is set on dual... Temp L & R set at 60 deg. Turn the drivers side up to 90 deg. The passenger side gets hot. Turn it down, it cools. Turn the passenger side from 60 deg to 90deg. The drivers side gets hot and cools when turned down. All the other functions, blower settings & fan, work as they should. I begin to think this car came from Australia or something... :-/ I don't think the gang plugs in the back of the panel are interchangeable. There are two gang plugs that would handle several functions judging by the amount of wires involved, and changing their position if it could even be done, would then mess up the other functions. Any ideas??

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              • #8
                Calvin, that makes sense. I don't know how that plumbing should look, but I think I know where the valve is. Passenger side on the radiator, under the large radiator hose? It looks like two 'solenoids'(?) side by side, with three hoses? If I understand, you are suggesting that the hoses on the Dual Heater control valve that go to the heater core(s), are reversed? This makes perfect sense to me. Any other ideas? or do we have it figured out.

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                • #9
                  Originally posted by Mujiir View Post
                  Any ideas??
                  My idea would be to remember the controls work backwards from normal and leave it alone. If it ever breaks down completely, then I'd address the backwards controls problem.
                  21 years, 174K miles, 48 States X 2 & DC, 9 Canadian provinces, 8 European countries, 3 Caribbean Islands, 3 Hawaiian Islands, 100+ National Park locations, 150+ T-bird events, 190+ retrobird diecasts/models, 13 TOTM pics & some very special friends...THANKS TBN !

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                  • #10
                    I agree with Paul, address the issue, novel as it is, take care of it when it either drives you nuts, or breaks down.
                    Last edited by merlot4; Mar 8, 2019, 06:43 PM.
                    Life without passion is no life at all.
                    Sean Combs

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                    • #11
                      I agree as well. In the meantime, you have a one off.

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                      • #12
                        If you eliminate/turn off the dual feature, what happens when you adjust the left up/down feature? As a rule it should control both sides.
                        02 Nieman Marcus-SS htp-f/sil. #165 - 21 states-DC
                        02 TB-TB htp-p/blue acc.-Nancy Gioia-28 states-DC
                        03 007-Coral htp-f/white acc. #468 7 states
                        03 WW-WW htp-p/red 8 states
                        04 VMG-VMG htp-p/white - 20 states-DC
                        04 Merlot- Merlot htp-sand- B. Grassnig-48 states-DC
                        04 TR-TR htp-blk 20 states-DC
                        04 LIB-LIB htp-p/white 16 states-DC
                        05 Cashmere htp-stone #408 21 states-DC
                        05 Dusk Rose-DR htp-cashmere seats - 48&DC
                        05 IG-IG htp-p/white #82
                        - 48&DC

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                        • #13
                          I'll put my money on the wiring at the dual control valve not the hoses. It would be a very simple matter to switch them, there is a pair for each solnoid. If the switch makes no difference, then switch them back & go after the hoses being mixed up
                          ​​​​​​
                          Mike

                          sigpic

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                          • #14
                            Originally posted by steelblue5505 View Post
                            I'll put my money on the wiring at the dual control valve not the hoses. It would be a very simple matter to switch them, there is a pair for each solnoid. If the switch makes no difference, then switch them back & go after the hoses being mixed up
                            ​​​​​​
                            I think you may be on to something Mike. It would be an easier error to understand, hoses tend to take a set where they belong. Wiring a lot easier to mess up.
                            sigpic

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                            • #15
                              Thanks to all for great help and suggestions. I will look into the wiring at the valves, then look at the placement of the hoses. Stuff like this makes me nuts when you have something you think is really nice... except for that one little thing. I surely could just remember it works backwards, and no one would ever know... but me. And therein lays the rub. I will report back on my solution. You all rock! Thanks again. :-D

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