get very little heat,w/blower on. Thermostat is Ok 190deg.coolant level OK ?? on 1999 Volkswagen Passat

Checked heater core temp.on hoses in & out and it seems same temp is hot evenly in and out. with blower working heat-drops Radiator liguid level OK. Temp. control-knob & cable seems to be operating can hear damper changing position from cold to hot. can't find a heater control valve... What can it be????

by in Roselle Park, NJ on October 25, 2012
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2 answers 1 comment
ANSWER by , October 25, 2012
heater core clogged?
COMMENT by , October 27, 2012
Got Milk?
ANSWER by , October 25, 2012
Is the t-stat rated at 190 degrees or is the engine running at 190? Heater control valve may be inside under dash.