The thing is that it's not a constant thing. It happens when the engine is hot, but I just took it for a drive, got off the freeway, and it didn't do it. Idled through a parking lot, and it did when I stopped.

1949 International KB-2 "Mater" - 302/T5

1968 Dodge Dart GTS "The Drat" - 340/727

2006 Dodge Magnum R/T - Hemi

2016 Dodge Durango Limited - 3.6