Troubleshooting Bendix Fast Idle/Cruise Control on 89 35FC 3208 ATAAC

[Scott Forman]

Is fast idle on all models handled through the CC? My fast idle
switch works fine, but my CC is inop on the road.

Scott Forman
86 PT38
Memphis

--- In WanderlodgeForum@yahoogroups.com, "Richard Gideon"
wrote:
>
> I need help understanding how to set the fast idle speed using the
> cruise control on my 89 35FC 3208ATAAC. With engine idling at 650
> rpm and Cruise Control switch turned On, depressing the SET seems to
> have no effect on the rpms; however when the RESUME switch is
> depressed, the rpm immediately increases to 3000. I quickly turn the
> Cruise Control switch to OFF and the rpms reduce to 650 or 700
range.
>
> I've owned this coach just over 1 year and fixing this idle speed
> thing is now reached the top of the "To Do" list.
>
> The Cruise Control does seem to operate, but not smoothly; if set at
> 55 mph for instance, when speed drops to 55 the throttle opens FULLY
> and Turbo Boost goes to 8 or 10 psi or so depending on the terrain
> and then vehicle speed goes slightly past the Set speed of 55 mph at
> which the time the throttle seems to fully close. Behaves as though
> throttle is either fully open or fully closed...no in between.
> Another serious thing...it appears that touching the brake does not
> disengage the Cruise Control; the Cruise Control can be disengaged
> by turning the CC switch to OFF.
>
> Because of the above issues I do not have a functional Cruise
Control
> and feel it's unsafe to engage on most highways and when I do use it
> the fuel economy suffers because of the jerky responce.
>
> Would very much like to get the obsolete Bendix back operational if
> there is and easy fix; faulty ground? poor connections? bad ECM?
>
> Please share your experiences with me and other on this board.
> Perhaps its time to invest in a KING Cruise or Rostra?
>
> Dick Gideon
> Freedom Bird
> 1989 35FCSB
> Rolla, MO
>