run hot

present singular third person runs hot · participle present running hot · past ran hot

1. To produce excessive heat while operating.

   Chief, that gun’s been firing non-stop; it’s gotta be running hot!

   2007 September 25, Bungie, Halo 3, spoken by Avery Johnson (David Scully), Microsoft Game Studios, Xbox 360, level/area: The Storm

   2 more examples

   No. 5964, Patriot, made a brief appearance, but had an addiction to running hot, and was soon returned to the Western Division.

   1943 March and April, “Notes and News: Locomotive Notes”, in Railway Magazine, page 120

   It was expected that the whole of the "3700" and "3900" classes would be so treated, but it was found that the streamlined casing caused the engines to run hot on express work and they were relegated to goods trains; the casings were removed during the war.

   1955 February, E. J. Tyler and J. Quanjer, “The Steam Locomotive in Holland 1919-1954”, in Railway Magazine, page 129

2. To run ahead of schedule.

   8. Running hot

   1996, Rolland D. King, Bus Occupant Safety, Transportation Research Board, p. 55, Appendix H: Compromises Made by Operators to Maintain Schedules

   2 more examples

   You are eight minutes ahead of time, and some passengers will miss your bus if you run hot.

   2010, Robin Hong, Singing Bus Driver, Xlibris Corporation, →ISBN, page 22

   She was constantly out sick, lazy, or lame and also she was always running hot and not maintaining or operating her bus on time.

   2011, Andre Carrington, Driving a Bus in New York City, Xlibris Corporation, →ISBN, page 97