MacBook Overheating and Clicking Noise

My MacBook has been incredibly sluggish, freezes all the time, gets really hot really fast and has been making a weird clicking noise. It's not the clicking noise when you move the computer around too fast from the HD but a different one. It's like someone is flicking the body of the MacBook. I've literally tried eveything but I have no idea what's going on. There's no virus, nothing is using up a large amount of space accroding to the activity monitor, I deleted all unnecessary files and repaired all the permissions as well as made sure the software is up to date. I'm using OS X 10.6.8. Any suggestions would be great!

Could be fan failure inside.  That would explain the overheating and also the sound if the fanblades are hitting something as they spin.

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    Hi, welcome to Discussions,
    You may have seen some of the various threads about this on this forum. There were many last year (summer 2006) and I've noticed some recently:
    http://discussions.apple.com/thread.jspa?messageID=5747020&#5747020
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  • Macbook pro occasional clicking noise

    I have a Mid-2012 Macbook Pro (not retina) that I purchased earlier this month. It would run silently but then after a while it started to make an annoying click every once and a while without a pattern. I've never heard any of my friends' MacBooks make this noise and my old white one did not make this noise either. I assumed the clicking wasn't normal so I took it in and they said there could be something wrong with my hard drive and gave me a new Macbook. Now I am using that Macbook and today it started making the clicking noise too. Is it normal for a Macbook Pro to make this clicking noise or do I have to take this one in too?

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    Here is an image:
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  • IPhone hearing aid t-coil (telecoil) compatibility and clicking noises

    We happily received our new Verizon iPhone4 a week ago, but, with considerable disappointment, sent it back yesterday ...
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    I installed the iOS 5 on my iPhone 4 and I enabled the "Hearing Aid Mode". The loud clicking noise went away so now my wife can use my phone with that option enable.  She has the hearing aids.
    Currently she has a Droid and can hear ok using the t-coil.  She has never been able to use the iPhone with her T-switch because of the loud clicking noise. 
    So we got an iPhone 4S for her thinking that option would be available on the iPhone 4S (Hearing Aid Mode).  She hears the loud clicking noise because the "Hearing Aid Mode" option is missing on the iPhone 4S (not sure why that option does not show up - see other post). 
    We are going to have to return the 4S since it does not work with her hearing aid :-(.
    I guess another option is to give her my old iPhone 4 and I take the iPhone 4S :-).  We only have 3 days to return the phone, so we may return the 4S and have her test my iphone 4 for a month or so to see if it really works.
    So my comment is you may want to try an iPhone 4 again with iOS 5 installed and enable the "Hearing Aid Mode" option.

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