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plastic HVAC controls

Discussion in '70-Series Tech' started by jblueridge, Mar 18, 2017 at 9:18 AM.

  1. jblueridge

    jblueridge SILVER Star

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    I want to replace my hvac controls. Some of the sliders are very hard to get moving. Also one of the plastic levers is broken.
    I found what I think is the correct part number.
    The folks at JP CarParts say it has been discontinued and the controls for a 1990-2004 model can be used.
    Among other things they wrote:

    55910-90K00 is replaced by 55910-60220.

    Can anyone confirm? Will control cables be the same? I will replace them too.
     
  2. NM Frontier

    NM Frontier SILVER Star

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    This would be good info to know, mine are in similar condition. I'll be watching closely.
     
  3. hoser

    hoser SILVER Star

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    Interestingly, the part is the same for both RHD and LHD. I guess you just flip the unit to suit either LHD/RHD?
     
  4. jblueridge

    jblueridge SILVER Star

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    May be hard to confirm. Perhaps a long wait.

    [QUOTE="I guess you just flip the unit to suit either LHD/RHD?[/QUOTE]
    I would bet that they keep the same orientation but the blower motor control knob offsets the sliders right or left as needed.
     
  5. roscoFJ73

    roscoFJ73

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    What is causing the levers to be stiff?
     
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  6. 1978HJ45

    1978HJ45 Odd Iron Off Road SILVER Star

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    If you force the levers the plastic do-dads that move everything behind the dash will break. Ask me how I know this.
     
  7. JuanJ

    JuanJ

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    Hello,

    x2.

    Levers may have lost lubrication over the years.

    Heater and AC levers are hard to move in old age. Some contact cleaner and oil may help.

    Be careful not to force them when disassembling.

    My two cents.






    Juan
     
  8. jblueridge

    jblueridge SILVER Star

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    I think the control cables have corrosion causing stiffness.
    The middle lever feels broken. Very hard to move and a lot of slop.
    Spray lubes have no effect.

    That's why I'm looking into replacement parts.
     
  9. roscoFJ73

    roscoFJ73

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    The problem might be at the ducting flaps rather than the controls
     
  10. NM Frontier

    NM Frontier SILVER Star

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    Something in there has some friction/corrosion, cables or duct flaps. I cringe every time I move em.
     
  11. jblueridge

    jblueridge SILVER Star

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    It feels more like crusty cables that led to moving plastic parts deforming, cracking etc.
    Outside/inside air duct flap has been lubed. No change.
     
  12. beno

    beno Gihee Arakawa Supporting Vendor Moderator

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    Buy it and find out.
     
  13. 1978HJ45

    1978HJ45 Odd Iron Off Road SILVER Star

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    @elkaholic and @NGray both have experience with your problem. Perhaps contact them.

    **Your P.M. was answered.
     
    Last edited: Mar 19, 2017 at 10:24 AM
  14. jblueridge

    jblueridge SILVER Star

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    If I ever sell my F150, I might.
     
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  15. coldtaco

    coldtaco

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    I think the previous poster is referring to all the doors for the different selections, like floor/dash vent/defrost. These all have their own doors.
    I changed out this cluster on the -75 when I got home with it since the plastic arms where broken for some of these functions. I had another rhd set here. All works, but I still don't get full windshield defrost, some day I will have to look into that.
     
  16. beno

    beno Gihee Arakawa Supporting Vendor Moderator

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    I'll make this easier.....

    IMG_1726.JPG IMG_1727.JPG IMG_1728.JPG
     
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  17. eman375

    eman375 SILVER Star

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  18. jblueridge

    jblueridge SILVER Star

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  19. AndrewHadji

    AndrewHadji

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    soooo what about the blower box with all the fancy cables to switch vents... is that available, you know... in case someone forced somehting they shouldnt have?
     
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