Those looking to get a car serviced at a Chicago-area dealership may find it will take a while. More than 800 auto mechanics are on strike after failing to reach an agreement on a new four-year labor contract, essentially shutting down service work at 56 new car dealerships in the city and the suburbs. The last Chicago auto mechanics strike in 2017 lasted for more than seven weeks before a deal was signed. “They are prepared to stay out as long as it takes to get an agreeable contract,” said Ronnie Gonzalez, a spokesman for Automobile Mechanics’ Local 701 in Carol Stream, Ill., which represent...