(15 Feb 2015, 6:01 pm)stagecoachbusdepot wrote Service 3 stopped serving Thornholme Road in May 2005, coinciding with simplification of the Sunderland network. This saw the withdrawal of Service 2, with all journeys operating as Service 3 along a new more direct route via New Durham Road, Plains Farm and Atlantis Road - omitting Thornholme Road (replaced by Services 22/23/24) and Gilley Law (replaced by Service 13).
Cheers, i thought it might of being when the Sunderland network was simplified.