
1) After-run
Found on
https://www.crosswordclues.com/clue/dieseling

Dieseling or engine run-on is a condition that can occur in spark plug, gasoline powered internal combustion engines, whereby the engine keeps running for a short period after being turned off, due to fuel igniting without a spark. Dieseling is so-named because it is similar in appearance to how diesel engines operate: by firing without a spark. T...
Found on
http://en.wikipedia.org/wiki/Dieseling

A condition in which gasoline continues to fire after the ignition has been shut off. In late-model engines, dieseling , or run-on, is caused by heat and the unusually high manifold pressure that result from retarding the spark at idle. In fuel-injected cars when the engine is turned off, fuel is automatically shut off, eliminating dieseling.
Found on
https://www.encyclo.co.uk/local/22334

after-run.
Found on
https://www.infoplease.com/dictionary/dieseling
No exact match found.