[V8] Still Freezing my Feet off...

[robert_a_dupree at bankone.com]

So I think I've got a problem with the replaced heater-core, flaps, 
temp-sensors or controller mechanisms.
The car gets warm in both oil (80c) and water temps (90c).
My seat heater gets warm, so that's not a problem.
Even when leaving the temp set to "HI" and the Blower on "Low" the air 
coming from the vents on a 25deg day feels at best 40deg.
This is true for defrost vents, dash vents and foot vents.
The temp differential over ambient seems to be constant so the car 
eventually gets above 60deg on the inside, except for the foot area.

I come to the conclusion that either:
1.  There is minimal hot engine water flowing into the heater-core because 
of a valve problem
2.  No hot water in core because the HVAC controller is sensing the output 
air incorrectly
3.  Plenty of hot water in heater core, but no air flowing through.

So can someone scan the couple of basic diagnostic trees from their V8 
service manuals?
Before I finish putting all the lower trim panels in place I'd like to get 
this resolved or at least improved.

Help.

Robert A. Dupree
      Investment Bank Technology, Chicago - MarketData & ECN Project Team
      JPMorganChase & Co.
         312-325-3587 desk

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