Originally Posted by SafeChav
The starter motor demands more current flow than the rad fan ever will, plus that and the fact once the engine is running you also have the aid of the alternator.
Thats what i said but you just used more word's professor
Originally Posted by SafeChav
P.S have you hit it with the hammer yet
Or he could try gripfill on the plug that will work a treat
But seriously as safechav say's it's probably just the plug corroded to the fan.