15" MacBook Pro runs hot, fan is loud, and incredibly low battery life

Just solved a similar issue. I downloaded iStats. I noticed CPU was > 50%, clicked on the graphic and noticed that CPU Utilization was off the charts due to Kies, the Samsung sync utility (anti-Apple shields up). Stopped the program and temp dropped from 85c to 60c in 5 minutes. Bottom line is check your thermal stats. If CPU is hot then something is causing it to fire up those gates which consume energy and generate heat.

This thread is a little old, but I'll throw out my two cents anyway. My Macbook was doing the same thing, I stopped using Google Chrome and the fan stopped runing constantly. The issue may not be with you computer, it may be Chrome.

I'm now using Safari and all is well, except there's not reload button, etc.

Hope this helps.

First..thank you for the app..Something I have been looking for and you guys have it.

Second...I noticed my fan doing the same thing while I was running several apps...Just bot this 15" and gave my son my older 15" with only a few changes -- added a 500gb SSD to this one and running 8gb ram... The older MAC never had the fan go off, but this one the battery drain and fan seem to be very significant.

I am monitoring the programs and going to see what is setting it off! Thanks guys.

Thanks !!!, My computer had been doing the same thing for months now, and the "Send to Kindle" delete seems to have solved it! I had brought to the Genius bar and they couldnt figure it out.

Cheers!

I have a macbook pro and have brought it into apple already. They claim nothing is wrong with the computer. I have had as little as one safari window up with 2 or 3 tabs and it has become extremely hot. Almost burning. For a while a cooling pad kept the temp bearable but it still became too hot after Month of using the cooling pad. (The pad has two big fans on it and uses a USB port. I did find that if I had nothing attached to the USB it was relatively cool. But not using the USB's at home is not an option.

I did finally take the back panel off and was going to put the CPU grease between the fan and CPU and low and behold, there was no CPU under the fan. I blew out the fan and the exhaust which appeared to be clear. It only had a little dust between the CPU and the bottom that it fits over. I cleaned that up and fired it up. The fan did not run like a jet engine after that. (I thought I might have broken it.)

I had it running for a good fiftenn minutes with no noise and no heat. I was beginning to feel like I was in the twilight zone. The computer actually felt like I never turned it back on and was as cool as could be AND no noise. I did download iStat. I highly recommend it becuase it gives you well needed information on your computer. I certainly would pay the 16 dollars if I was you. I am paying it now myself. I am keeping my fingers crossed that this is it. So far it has been on for a half an hour and is cool on top and barely warm below the fan area.

Hi there,

I thought I have to share this with you all...

I've been having problems with my fans too. I tried everything, I thought I just had to live with it. I alway kept my MacBook Pro clean from the inside when e.g. exchanging a hard-drive. So I started exploring threads about reapplying some new thermal paste, I was desperate ;-)

Now last time I opened up my MacBook Pro I noticed some dust sticking out of one of the fans. I thought let's have a closer look... and bingo! While trying to keep everything clean, there was some accumulated dust clutter inside the fans which was not visible. Almost like a thin filter keeping the fans from cooling properly. I know this won't be the solution for you all out there with this problems, but at least check it... Mine is now hitting only max rpm when really needed!

Of course be careful when sticking something in to lift the cap a bit, do not force it! Create a small opening and then use a vacuum cleaner or some compressed air to remove the dust.

Good luck!

Ps. here some pics:

DUDES

For some month I was having the same problem

And I just solved it ! Somebody here had the answer so I give it to you.

Go to library / preferences and delete com.apple.finder.plist

Then restart the finder

And there you go. At least for me. What an amazing day today. I feel like naking again . No noise . YEAH.

And of course don't use chrome, I loved it but yeah it make **** with the cpu + it's a 32 bit app wich is bad in the mac 64 environement .

peace

After downloading iStat, I noticed that even under marginal load, the fans were spinning at 6000 rpm, and there was hardly any air coming out of the vents.

So I followed your advice and indeed, there were some nice lumps of dust in both fans. Now, for the first time in over a year, the CPU is not overheating and the fans run at a bearable sound level.

Thanks!

HAd more or less the same problem: it turned out that Safari eats memory and heats MacBook, even when 'asleep'. I stopped using Safari, and am using Chrome. Much improvement.

For just the past few days, I've had the overheating and the fan working overtime as well. I thought I'd add my two cents here. I have recently added a couple of third party applications, one of which is Avast! antivirus. I looked at all the suggestions about hardware and thought I'd try a safe boot first to see if it was one of the bits of software I'd added. As soon as I safe booted, the fan stopped and the computer instantly started cooling down. I uninstalled Avast! and all is quiet and cool now.

I'm on a MacBook Pro 13" early 2011 running Mavericks. So, just an FYI for those of you who might come here trying to find out what's wrong and may have loaded some new software that's causing your issues.

Hope it helps.

I had the same trouble and then quit spotify