Could it be something other than head gaskets.
My 1999 Subaru Legacy Outback 2.5ltr. Is overheating,
bubbles in coolant and no heat. I assumed head gaskets
well because I tried bleeding the coolant system to no avail.
I also changed the thermostat. But I just found out that the
head gaskets were replaced just 40,000 miles ago. Is there
something I am forgetting to check??