overhaul
     n : periodic maintenance on a car or machine; "it was time for
         an overhaul on the tractor" [syn: {inspection and repair},
          {service}]
     v 1: travel past; "The sports car passed all the trucks" [syn: {pass},
           {overtake}]
     2: make repairs or adjustments to; "You should overhaul your
        car engine" [syn: {modernize}, {modernise}]
Source: WordNet® 2.0