Dondarcy Posted February 7, 2020 Report Share Posted February 7, 2020 2007 lincoln MKX. No heat drivers side. I have replaced both blend door actuators and HVAC control module. Still blows cold air on drivers side. blend doors are working and when I switch to defrost it will blow warm air for just a second then back to cold air. Frustrated and about ready to get rid of it. Any suggestions? Quote Link to comment Share on other sites More sharing options...
1004ron Posted February 7, 2020 Report Share Posted February 7, 2020 You might get a better response if you posted in the appropriate subsection of the forum. 1 Quote Link to comment Share on other sites More sharing options...
WWWPerfA_ZN0W Posted February 8, 2020 Report Share Posted February 8, 2020 Check blower fan operation and coolant level. Coolant should be at the top of the COLD FILL RANGE for best results. When was the last time you changed the cabin air filter? 1 Quote Link to comment Share on other sites More sharing options...
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