hi Jon, wondering where you were grin could be the switch is the problem, but more likely some of the rest of the mechanism is worn - see here and following 2 pics, the cancelling cam is probably missing springs or has worn out pawls or something is out of place, take off the steering wheel and watch how it all moves

Bill

Moved over to the Passing Lane

"When we tug a single thing in nature, we find it attached to the rest of the world" ~ John Muir
"When we tug a single thing on an old truck, we find it falls off" ~ me
Some TF series details & TF heater pics