Waine5550 Posted September 23, 2022 Share Posted September 23, 2022 Does the panel have 2 cables? Mine only had the top hooked up and I can't find one for the bottom. The bottom lever doesn't have any fuction. Link to comment Share on other sites More sharing options...
Pete Whitstone Posted September 23, 2022 Share Posted September 23, 2022 I don't know if it varies by year, or maybe options (AC vs not, etc.). But my 81 has only one cable, and come to think of it, I swapped in a later control panel and it only had one cable as well. Mine is a factory AC truck. Link to comment Share on other sites More sharing options...
mat in tn Posted September 24, 2022 Share Posted September 24, 2022 study this a little further. i believe that your truck is an 85 i f i remember correctly. the lever for the temp will use a cable to operate the door from heater core to evaporator and back but the multi function control on the bottom uses a third arm of the lever to operate the vacuum switch to select which motor/servo is needed to change from defrost, floor, vent etc. therefore the cable end is rendered obsolete. Link to comment Share on other sites More sharing options...
Gary Lewis Posted September 24, 2022 Share Posted September 24, 2022 study this a little further. i believe that your truck is an 85 i f i remember correctly. the lever for the temp will use a cable to operate the door from heater core to evaporator and back but the multi function control on the bottom uses a third arm of the lever to operate the vacuum switch to select which motor/servo is needed to change from defrost, floor, vent etc. therefore the cable end is rendered obsolete. I’m on a cruise ship at the moment trying to outrun Fiona so don’t have the time to research it, but I tend to remember that it varies by whether you have heat only or A/C. You can figure that out here: https://www.garysgaragemahal.com/hvac-systems.html Link to comment Share on other sites More sharing options...
mat in tn Posted September 24, 2022 Share Posted September 24, 2022 I’m on a cruise ship at the moment trying to outrun Fiona so don’t have the time to research it, but I tend to remember that it varies by whether you have heat only or A/C. You can figure that out here: https://www.garysgaragemahal.com/hvac-systems.html just keep swimming! Link to comment Share on other sites More sharing options...
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