|MOP 9000s, C36-7s, in Cajon Pass|
When the photo above was taken in the 80's, Estonia was still under the Soviet thumb. The majority of the road power of Eesti Raudtee is former U.S. GEs. (link.) I can't find out if there is an onomatopoetic word such as chug in Estonian, but you would think there is one.
Estonia YouTube playlist: