Your expertise required. I have searched PW site couldn't find answer. For past two days my radiator fan has mind of its own. Some times it turns on sometimes it doesn't The fan is not direct and is on auto. Sometime, the temp needle even passes the half mark and it doesn't turn on the fan till i turn on the ac. Weird eh? Then the fan kicks in and cools down the radiator. What could be the problem and how can I myself solve. I want to do it myself cause i have taken to several electricians it seems like they are unreliable.