Despite numerous searches including the phrases (air pocket), (coolant bleeding), (coolant refill procedure) etc, I was unable to find anything that could help me with my current problem.
Knowing that Subaru coolant systems aren't the easiest to bleed, I did some research and found that many people have experienced this problem, but I was never able to find a solution. Basically, my radiator cracked (in -9 degree F weather) and I replaced it, but when under stress, the car starts to overheat. It will run idle all day long with no problem but climb a hill or stay on the highway for awhile and the temp starts raising very quickly. After poking and prodding, it seems that the coolant isn't circulating all the way. I say this because the top radiator hose seems warm/hot as usual after warming the engine up, but the bottom radiator hose to the thermostat remains cool, and not warm at all. There are also a lot of bubbles in the upper coolant reservoir (not the extra/overfill reservoir with the fill line)
In addition to replacing the radiator, I replaced the thermostat and all hoses as well.
Also, I did find the "official" Subaru guide ( http://www.endwrench.com/current/win...ngineMaint.pdf
) for replacing engine coolant and it mentioned a bleeder cap that should be pulled. Am I to understand this is on the radiator itself (which in my case is gone since I replaced mine), or is it somewhere else?
No performance mods.
I would greatly appreciate any feedback whatsoever as so far, I haven't been able to get any info anywhere else.
Help me wrxtuners, you're my only hope.