Torbay council members have voted to support a motion of no confidence against their directly elected mayor Gordon Oliver.
Mr Oliver had already been expelled from the Conservative group.
It means the Council believes the mayor has failed to carry out his duties.
There is no word yet on whether Mr Oliver intends to resign.
The role of the directly elected mayor is set to be abolished after 2019 anyway - after a referendum in 2016.
Torbay's Mayor Gordon Oliver has written to the Government appealing for more cash to tackle the council's growing road maintenance backlog.