Hey, I just wanted to let everyone know what the deal was on this. I
took it in to my mechanic. Like I mentioned, he had already flushed
the heater core recently, and he had always used a Prestone flush.
When he did the flush, he wasn't getting anything out to speak of.
Anyway, he did some research and found out about a product called
Matilda or something like that, I guess, from NAPA. He used that, and
he got a bunch of black junk out of there. Heater works great now,
regardless of vehicle speed and blower speed.