Last trip to FL the cruise control started acting up.  By that, I mean sort
of a little jerky then it wouldn�t hold speed.  When it did add throttle for
a rise or hill it would go past 5-10 mph past set speed than abruptly stop
until it was below set speed and the cycle starts again.  Ultimately, it
quits.  Stop for a � hour or so and it will work fine for an hour, more or
less, and starts acting up again.  I have tested the vacuum switches and
vacuum throttle actuator and all are fine.  The system will hold vacuum for
hours.  That said, is it more likely the vacuum pump or electronic control
unit.

 

Thanks for any input as I am fleeing the cold north right for FL just after
the holidays.

 

Bob C