I've got a 1999 Park Ave that all of a sudden has developed a loud
"thunk" when engaging the cruise control or tapping the brake to take
it off. Curise is working normal.
I imagine it's a relay, but frankly have never heard such a noise
from a relay --- it's not a click.
It's quite loud and annoying.
Any thoughts before I take it into the dealer?
Car only has 23K on it but it is out of warranty of course.