1994 Automatic Geo - 3-cyl, 1.0 liter - 94,000 miles.
Just this last Oct. or Nov. I replaced the thermostat, flushed the radiator and heater core (no debris there at all) and reattached everything. After doing so, everything was great - REALLY HOT heater, no problem.
NOW, things have changed a bit - the heater puts out warm air and is adequate at defrosting, etc. but it doesn't get HOT like it used to. What could be causing this?
Thanks