Sunburn5000 Posted October 20, 2020 Share Posted October 20, 2020 (edited) Hello I have an mkz 2014. I get out of the car and lock all doors and succeed. I then come back a unlock the doors from the fob. They all unlock except the passenger front Door. I can open the trunk with my fob. I can start my car remotely with the fob. Does this mean I need to replace the actuator in the front passenger side to get it unlocking or could it be something else. I look forward hearing from someone. Edited October 21, 2020 by drolds1 correct topic title Quote Link to comment Share on other sites More sharing options...
kramf411 Posted October 21, 2020 Share Posted October 21, 2020 Could be the actuator but it did lock with the key fob, right? Are you able to trigger lock/unlock using the door buttons? Quote Link to comment Share on other sites More sharing options...
Sunburn5000 Posted October 21, 2020 Author Share Posted October 21, 2020 Thank you for relying. Yes, it did lock when I pushed the Fob. I did try to open from inside on the drivers side with the panel but it did not open. I had to lean over and open manually from inside. What are your thoughts? Quote Link to comment Share on other sites More sharing options...
kramf411 Posted October 21, 2020 Share Posted October 21, 2020 Ruling out a few things. Did you physically checked if the door was indeed locked after the keyfob press? If it locks but not unlock, perhaps it is not totally an actuator issue. It could be a door latch issue which I just saw, upon searching, there was a recall for your model year. Not sure if your particular case is relevant to the recall but may be worth checking out if your vehicle is affected. Before venturing into replacing stuff, did you check if the latch is obstructed, dirty, full of gunk, etc? All of those will prevent the mechanism function properly. Got WD40? ? Quote Link to comment Share on other sites More sharing options...
Sunburn5000 Posted October 21, 2020 Author Share Posted October 21, 2020 Thank you. I will check the recall and wd40 the latch. Greatly appreciated Quote Link to comment Share on other sites More sharing options...
bbf2530 Posted October 21, 2020 Share Posted October 21, 2020 (edited) 4 hours ago, Sunburn5000 said: Thank you. I will check the recall and wd40 the latch. Greatly appreciated Hi Sunburn. You can use WD-40 to clean and give a quick lubrication. However, you should use a proper automotive lithium grease to lubricate the door latches and hinges long-term. You can buy it in spray cans. Good luck. Edited October 22, 2020 by bbf2530 leftoverture 1 Quote Link to comment Share on other sites More sharing options...
CDW6212R Posted October 22, 2020 Share Posted October 22, 2020 Try White Lithium grease in a spray can, I like that for door latches, after using PB Blaster to clean and loosen them up. Lock actuators usually fail after a lot of years, from the latches and linkages getting gummed up, dirty etc. Water will also kill them if it reaches their internals, and that happens easier when the door glass rubber felt/trim cracks and breaks apart. That usually takes 20-25 years though. Quote Link to comment Share on other sites More sharing options...
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