I am a backyard mechanic. This is my first Subaru and may be my last!
I bought this car back in January knowing that it had an overheating problem. Turned out to be the infamous HG problem. I have searched the internet extensively and performed purging procedures in every way possible.
Subaru dealership charged my another $50.00 to say that they couldn't find a problem. (they idled it for 20 minutes, didn't drive it)
I STILL have an overheating problem after these repairs:
Rebuilt engine w/ new head gaskets, timing belt, Water pump etc. Installed by third party Subaru Specialists
New Radiator, cap, hoses, thermostat (OEM) Subaru coolant 50/50 distilled water
Cooling fans working
Heater core flowing
5 minutes driving my temp goes up to 11 o'clock and beyond. The only way to bring it down to 10 o'clockish (still too high) is to turn my heater on the highest setting. Painful since it's pushing 100 degrees outside.
AC compressor on/off has no effect
Problem became worse after switching to the Subaru recommended coolant and consitioner
The only other thing going on is that my fuel gauge bottoms out at 3/4 and 1/4 full. Check engine code is "Voltage to sending unit high". I've replaced the sending unit with junk yard unit but the results are exactly the same.
$2000 in repairs and going... Please Help