Replace the leaking top radiator hose and related hoses. Check whether the radiator fans come on when the A/C is turned on, and look under the engine for moisture from a coolant leak. If the engine still overheats after the hoses are replaced, replace the thermostat.
The owner of a 1986 Honda Accord with 157,000 miles reports overheating, a leak in the top radiator hose, and radiator fans that do not come on. The expert advises replacing the hoses, checking whether the fans run with the A/C on, inspecting under the engine for leak moisture, and replacing the thermostat if overheating continues after the hoses are replaced.
