Hi,
I had posted to this forum previously regarding a potential Head Gasket problem that my mechanic warned me about. We have a 2000 Forester at 152K miles and have run into an overheating engine issue.
Due to the expensive nature of a HG change, we went with the Subaru recommended coolant sealing solution (and a thermostat replacement) after the checkup.
For about a month, everything was fine. Last week, the engine started overheating in traffic again. On highways, there is no problem, but as soon as we hit stop-and-go traffic, it starts to overheat again.
I checked the coolant level, and it is fine (no leakage).
What else may be causing it? What should I be looking at to prevent a potential blown HG?
Thanks in advance.
Milo