Technical issues were reported on 9 May
The Isle of Man Steam Packet Company says repairs to one of the Manannan's engines is complete and is now operating to schedule.
Just over a week ago, technical issues arose with the inner main engine on the starboard side.
Trips to and from Liverpool were subsequently extended as a result.
The company has thanked passengers for their patience.
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88 percent of members voted to say they had no confidence in the healthcare provider's board
47 buildings in the south waiting for protected status assessment since 2013
Almost half of those identified in the Area Plan for the South are yet to be determined
Nominations open to fill on seat on Douglas Council's North Ward
It comes after the resignation of former mayor Janet Thommeny
B&Q customers raise more than £3,000 for Hospice
It's been raised through fundraising scheme Pennies