I have a very high pitched whine, almost sounds electrical, comming from the engine bay. It only happens when I start to accelerate but isnt contineous. It wont happen reving in neutral. I searched alittle bit and alot of people have said alternator, ps pump, or idle tensionor and i am pretty sure it is neither of these. It happend right after i did the manual fan switch. After I noticed the sound I removed switch and all the wires and used electrical tape to cover the opening in the wire running to the relay. At first i thought the relay wire was somehow exposed and I tried to recover it many times but to no avail. I also thought it could be a lose wire running to the fuse/relay box that got dislodged when i was pulling it off its base but i've checked many times and everything seems to be connect right but its hard to tell. I have even pushed all the wires in alittle bit incase it became slightly lose. Anyone have any clue to what it could be.

 

Hate to TTT this but someone is comming to look at the car in a bit and I'd like to have that not be the reason they buy it

 

serpentine belt tension? just a guess - doesn't seem related to fanswitch