Help needed heating problem on 1990 Custom Cruiser

Discussion in 'General Station Wagon Discussions' started by BrianJ, Jan 10, 2022.

  1. BrianJ

    BrianJ New Member

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    Hi. I recently purchased a 90 Custom Cruiser. The heat would not turn off despite moving the lever to cool (manual temp adjustment). I thought it was the temperature door actuator that went bad, but when removed the glove box, I was horrified to see that it was missing (see attached pictures). The temperature cable is just loose back there. Does anyone know if I am only missing the door actuator, or are there other parts missing? Does anyone know where I can find the missing parts? Can anyone send a picture of what it should look like behind the glove box, I can't seem to find a diagram. Any help would be appreciated:) IMG_0816.JPG IMG_0817.JPG
     
  2. OrthmannJ

    OrthmannJ Always looking for old ford crew cabs

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    Welcome aboard Brian, sounds like you have an interesting conundrum on your hands. I'd be willing to bet that someone here will have the information you need to get this issue sorted out.
     
  3. elB

    elB Well-Known Member

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    Looks like you are missing what the factory calls a "bellcrank" assembly that mounts to the box. It looks like a boomerang on a pivot that attaches on one end to the temperature cable and on the other to that black rod hanging out from the firewall (diverter door is engine-side on these cars). It's obviously not there, but whether or not it's a matter of just finding it and screwing it to the mounting points is uncertain to me. This area of a car rarely ever has anyone monkey with it as the assembly is quite robust, so something is definitely strange to cause someone to pull it out or for it to have broken. I would think that this assembly would not be 100% unique to 1990, so earlier years might very well be interchangeable, but the drawings indicate Chevrolet has it in a different location so it might be solely limited to Olds full size cars, maybe going back as far as 1977. Someone who has one or three of these cars could say for certain.

    I've attached the relevant files from the service manual so you can get a better idea of what it should be. The one labeled "HeaterCable" is closest in relevance. Unfortunately by 1990 the drawings in the service manuals for what ended up being the last year of a long run are less than stellar compared to the 1970s era of drawings.
     

    Attached Files:

  4. BrianJ

    BrianJ New Member

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    Thank you so much! This is very helpful. Now at least I know what's missing. The hard part is now finding the parts :)
     

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