An issue with the rails at the 81st Street and Central Park West station forced express trains to run local.
The subway station is one of three Upper West Side stations closing for the MTA's Enhanced Stations Initiative.
Three Upper West Side subway stations will shut down for at least six months for purely aesthetic renovations.
The MTA will hold an open house on Monday, March 26 regarding the 6-month shutdown of three Upper West Side stations.
The M104, which goes up and down Broadway, has been targeted for reduced service.
State Assemblywoman Linda Rosenthal slammed the MTA for a lack of community outreach for a plan that will close three stations for months.
The stations will be completely shut down while the MTA conducts aesthetic improvements and fixes.