This is a GPS module which was basically never working well, it was unable to get a decent fix and it had a high level of noise. I think its a bad design because when I removed the antenna there were traces right underneath it. The "ground plane" was broken up by traces. It was free so I decided to see if I could fix it by removing the passive antenna and connecting a SMA or pigtail to it so it could use an external antenna. But I had to heat it for a while, until the solder melted and I was able to pry the antenna off. That took around a minute. Much too long.
So after removing the antenna the "fix" light is on all the time and it doesn't receive anything but noise.
Basically it doesn't see any signals at all, even when an antenna is connected to the pins, BUT still has the high level of noise.
At that point I decided its an issue for another day and put it in my broken/junk box. I think the module is quite possibly still okay but would need to be removed and put on another board.
What I was thinking is that the prolonged heating of the pin may have fried the vias around the passive antenna connection, shorting it out, but leaving the noise thats being induced or capacitively coupled into the front end by the traces.