They were suspended for more than an hour between Manhattan and Queens, officials said.
The 2, 3, 4, 5, 6, A, C, D, E, F, J, L, M, Q, R and Rockaway Shuttle will all be impacted.
Signal problems forced three subway lines to suspend service between Manhattan and Queens Monday.
Signal problems at Grand Central Terminal disrupted 7 train service for hours Monday, officials said.
1, 2, 3, 4, 5, 6, A, C, D, E, F, M, J, L, N, Q, R and Rockaway shuttle lines are scheduled for changes.
The 6, 7, A, C, D, E, F, J, M, N, Q and R trains are slated for service disruptions this weekend.
A Manhattan-bound 7 train stalled because mechanical problems mid-tunnel, the MTA said.
DNAinfo is collecting your images on Instagram to show the range of daily commutes.
Service along the 2, 3, 4, 5 and Q lines was affected by the MTA's "Cold Weather Plan" on Monday.
The 2, 3, 4, 5, 6, 7, A, C, D, E, F, L, Q, R and 42nd Shuttle will all be impacted.
A small track fire broke out in the tunnel between Queensboro Plaza and 57th Street, officials said.
Trains were suspended due to a track fire in Queens.
The MTA is offering shuttle bus service and was cross-honoring fares with the LIRR.
The 2,3,4,5,6,7,A, F, L, Q and S trains will be affected by the modifications, MTA says.
The 4, 5, 6, 7, A, C, E, Q and the 42nd Street shuttle will be disrupted this weekend.
Get our daily New York City news and alerts!
Thank you for signing up!
Would you like to sign up for additional newsletters?
Thank you for signing up for additional newsletters.