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Old 12-13-2016, 06:13 PM   #1
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A few technical questions

I just bought a 1984 Executive 30'. It needs a bunch of mechanical work. That's OK because in my previous life I was a mechanic. It has a THM400 transmission. There is no power to the kickdown switch at the throttle pedal. All the chassis fuses are good. I'm thinking it should have power or is there some reason that it wouldn't be hooked up for a motorhome application? This coach also has a set of B&L Industries vacuum operated steps. Both the vacuum actuator and the extend - retract solenoid are bad. I know the company is know longer in business. Does anyone know if there is another source for parts or should I just pitch it and buy an electric step?
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Old 12-13-2016, 07:19 PM   #2
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I am sure you could find an actuator and solenoid that you could make work but I would go with electric if it were me. Parts are readily available for electric steps and you can probably find a set in a salvage yard if you can't afford new. Installation shouldn't be too difficult.
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Old 12-14-2016, 06:49 PM   #3
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On your TH400 question, I think there is normally a switch on the carb. or linkage that completes a 12v. circuit under full throttle. There is an electrical spade connection on the trans that activates an internal solenoid.
Have a look at some of the speed shops like Summit or Jegs for replacement linkage.
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