Can be the fan motor is defective, thermal relay is bad, fuse blown, or loose connection.
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Your Accord is overheating. The fan is running to try and cool the engine off. seek professional help immediately before you destroy the engine.
an engine is hottest after you turn it off. The humming is the cooling fan automaticly running to cool your engine down for longer engine life.
Shut the engine off. They're supposed to be on all the time the car is running.
You need to determine if it loses spark or fuel when it stops running. Once you have that info re-post the question with that info and include the year and engine of the Honda Accord.
A working cooling fan is important in keeping the engine of a car running well. A diagram for a cooling fan in a Honda Accord can be found in its maintenance manual.
It should last the life of the car if you maintain the car as you should. Let the engine start running rich and do nothing to repair this condition and it will destroy the converter. But keep the engine tuned up and running as it should and you will never have to replace the converter. NEVER had a problem with my 1996 HONDA ACCORD engine and CATALYTIC CONVERTER needed to be replaced at 220,000 MILES.
The 2012 Honda Accord has an inline 4 engine.
The 2004 Honda Accord has an inline 4 engine.
The 2007 Honda Accord has an inline 4 engine.
The 2003 Honda Accord has an inline 4 engine.
The 2005 Honda Accord has an inline 4 engine.