Re: New fan problems....HELP!!!
A relay can cause a drain on the battery when the engine is off, if it sticks on. If the battery goes dead while driving, the alternator isn't charging the battery. The alternator is capable of running the car without a battery in, but disconnecting a battery to test for charge can cause a spike that can damace the PCM and many other things. If the battery was check good at the store and wouldn't start the car on the way home, there's probably a connection problem. That would explain the fans being intermittant too. You can start checking all the connections and see if you can find something amiss or take it to a reputable shop for repair.