The arts minister had a last-minute rush to announce the next UK City of Culture after the train he was on was stranded for hours.
John Glen MP revealed Coventry as Hull's successor live on The One Show, but his train from London to the city broke down near Peterborough.
Dozens of passengers were aboard the 09:48 service, with Hull Trains blaming a "catastrophic engine failure".
Hull Trains apologised to those on board the service.
The BBC previously reported Phil Redmond, chair of the UK City of Culture panel, was to fill in for the MP due to his delayed journey, but Mr Glen arrived in Hull in the nick of time.
Engineers initially thought the train had struck something, but it later emerged it had suffered engine problems.
A Hull Trains spokesperson said: "We have now been able to move passengers on to another train which will take them to Peterborough and on to their destinations."
In a tweet, the Conservative MP for Salisbury praised the staff onboard the service for being "magnificent" and said he had filled his time by writing Christmas cards. ;
My journey to Hull has been punctuated with a 4 hour delay (ongoing)as we wait to be towed back to Peterborough - but at least I have had time to write all my Christmas cards. Thanks to onboard staff who have been magnificent. @Hull_Trains— John Glen MP (@JohnGlenUK) December 7, 2017