GPS Issues - Accuracy/Inaccuracy

I've been using my S3 for about a month now and I'm experiencing issues with the GPS' accuracy when using Google Maps/Navigation - it says I'm anywhere  from 50-500ft+ away from where I'm actually located. This has become a big issue when trying to use my phone for navigation.
Anyone else having this same issue? If so, is there a fix for this?

Not an expert here, but generally, your accuracy is going to be a function of how many satellites your phone sees.
My phone reports an accuracy of about 12ft or so. Even in doors it will see 8 or more sats.
First thing you probably want to check is if your phone's time is close to network time, because I think the data pulled from the network (this is Assisted GPS, or AGPS) is accurate. Make sure your phone is set to the proper time zone.
Next, download a program like GPS Status and Toolbox, and GPS Test (I recommend the one by Mike Lockwood). Use the second program to Inject the Time and the Xtra Data used for establishing the first fix. In the former program, its the first number that indicates the sats it sees. In the latter program, I believe it is the lines with "U" on the status line for "used".
When I use Maps or GNav, or GPS Test, and I'm lookng at a map, I'm merely a few feet typically from where the cursor is located, and you should really expect the same.
Although it might result in some configuration loss, it really might be worth your while backing up your important information, writing down your email server settings, etc, and doing a Factory Data Reset (FDR). 50ft error is I think unacceptable because in CONUS you should be within 10s of feet of your actual location,  500feet means there are other issues.

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    If I have helped at all, a click on the White Star is always appreciated :
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    Attachments:
    endomondo.jpg ‏42 KB

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    If I have helped at all, a click on the White Star is always appreciated :
    you can also help others by marking 'accept as solution' 

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