Okay, here's what I noticed at lunch: I drove the car for a while and got that lukewarm heat. Then, it seemed like it got colder as I went. So, I turned the knob all the way back to cold, let it cool, and turned it all the way back to hot. At that point, I got heat again, although as I've said, not great heat. Is this indicitive of a blend door problem?
And not to sound like a moron--does the water flow from the top of the engine, to the core, and back to the water pump, or does it flow out of the pump in the other direction? I'm just trying to confirm exactly which hoses I need to feel and which ones coming from the firewall are the real indicators.
1999 Taurus SE 3.0L Vulcan 4X4N
1967 Chevrolet Bel-Air 283 4-sp
2003 Mitsubishi Outlander XLS