Even after complete factory reset in a last ditch effort, my macbook is still awful. Why? Please help.

Question

Aright, I'm really hoping I can get some help here. This macbook is the most expensive thing that I own.
So, I start up my macbook pro 13inch running macvericks a few days go and for some reason the fans are going full last and it's terribly sluggish. I dug around a bit and realized spotlight was indexing. I let it finish, then restarted my computer later that day. Then, as soon as it started back up this time the fans were going full speed again. I take care of my macbook, and I've never let it get close to overheating, then only thing that I do on it is browse the web, write, and record music using garageband. I was worried, so I looked at activity monitor and kernel_task was running full speed. I looked forever on the internet for a solution and found some useful tips about editing plists that solved my cpu problem. However, my fans still went full speed after I gave them some time to transtion, with a reset and all. So, at this point and I'm frustrated with merely the noise, I look around for fan control software and none of it stifled the raging monstrosity that has become my fan. My logic at this point? Back up everything and do a full wipe of the hard drive and reinstall mavericks. So I did. Here I am with a blank macbook pro that is now just as slow as it was and the fans are still going full speed. I can't believe I spent a years worth of saving to just have it suddenly combust on me like this. I hate to whine, but please help me. Now, the activity monitor shows levels of up to 80% cpu usage and no explanation on top of that. It's still incredibly loud and not hot at all. It's difficult to type this to you guys because my computer doesn't want to catch up. I read some stuff about involuntary indexing, I'll let the macbook run for a while today and see if anything starts to change. You're my lost hope guys. I called apple support but they wanted 19 dollars just to see if they could fix it or not, I didn't have the money to pay them now and I won't until school starts in a week, wherein I will deseprately need a fully functional macbook, the one that I paid for in August 2012 with literally all my savings.
*also, before I factory reset the macbook I did an smc and pram reset, I also took out the batter from inside the machine for 30 seconds.

Answer 1

Hi,
I am having the exact same problem with my macbook pro, I was just wondering if you ever got a solution for your problem? Its been persisting for 3 days and i literally just wiped the system and am in the middle of reinstalling mavericks as we speak (i too resorted to a desktop) It was only after that i saw this thread, and now i regret wiping the system knowing it probably wont work.. but however, fresh start and all that jazz. My warranty ended just last week so im pretty disappointed with the timing, and i cant afford to keep up the warranty another year. If you could give me a solution or some guidance that would be great!
Thanks!
Hannah