Thread: 87 190D Heat/AC
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Old 02-02-2001, 02:24 PM
Posts: n/a
Check the vacuum line to your heater control valve at the right of the battery under the windshield grille. If there is no vacuum applied the valve will stay oopen allowing coolant to flow into the heater core. Also, heat is not supposed to come from the center vent only sides, floor and windshield as determined by your dash buttons.
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