2003 Mercury Sable Blower motor

2003 MERCURY SABLE
80,000 MILES • 6 CYL • FWD • AUTOMATIC
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GFILIPP183
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The heater blower only worked on high speed. I replaced the heater motor switch resistor, this corrected the problem for about a week. Now the heater blower only works on speed. What could be the problem.
Feb 1, 2009 at 11:25 PM
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