I was letting the car idle while I was gettign my loggin equipment ready. Maybe 5 mins or so..

I went to pull out of garage and noticed that my temp was just about to the H.. then the fan would kick on and the temp would go back to normal.

after a few mins, (idling) the car would heat up again and the temp would go right below the H,, then again back down when the fan kicked on... once the fan would go off a few secs later the temp would rise again.

Driving around (no stops it never got hot..

Do you think it might be a coolant issue? I did recently install a turbo kit and flushed all the coolant and added back 50/50.. I thought I got out the air, but who knows... Or do you think it could be the thermostat or temp sensor itself..

 

Sounds like you need to bleed the system.

 

I did burp the system... the thermostat is opening..

Its so weird, cuz when I turn on heat it climbs on the gauge, but logging, it doesnt' go over 203,, turn heat off, ,down to 190.. This is idling of course.

I am suspecting a temp gauge sensor...

but I would think a gauge sensor would either work or not.. its working, just not working right..

Unless when the needle pegs H that temp is 203..
which i doubt cuz normal is around 180-190 according to my logs.