Originally Posted by bicycle_wreck
What year and model car? Also, your location? Fill out your profile.
My dealership got a Field Service Engineer out to look at mine. Engineer couldn't figure it out either. I'm putting together something for SOA, but I've been working like a dog so I haven't really gotten around to it.
Dealership tech replaced the thermostat, didn't make a difference. He took quite a few logs of the temps and sent them to SOA. They said they don't have a fix, but are looking into it. Apparently when the dealership tech called the Subaru Tech Line, no one had heard of this problem. However, the field service engineer said he had seen it before, but wasn't aware of a fix.
I should also say that my temp gauge needle moves only slightly (about 1 notch below the middle when coasting down a hill), unlike the video in the OP. There may be two distinct problems here.
Sorry man, I'm a slacker when it comes to all of these forums. I'm all over the place.
2011 WRX. CT