heater only blows cold and fan wont work in floor position
5

Asked by toffy Aug 06, 2015 at 04:09 PM about the 1991 Mercury Grand Marquis Colony Park GS Wagon RWD

Question type: Maintenance & Repair

fan blows in every position accept floor ,will only blow cold core is not plugged just
replaced thermostat

2 Answers
70,895

Kelly answered 9 years ago

first check your heater controll valve..

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