There are 4 owner-reported fuel system complaints for the 2011 Lincoln MKXin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
We saw something leaking onto our driveway from inside the garage a couple weeks ago. I verified it was leaking from underneath the engine area of my car but didn't think anything else about it. A week later I went somewhere and was gone about an hour and came back and parked in the garage. I came back into the garage maybe a half hour later and it smelled like gas. I looked and noticed it dripping under the engine area again. I took my car to a shop (QualTech Automotive 620 in Austin, TX) and they called me today and said there was a fuel leak. They think it is by the rollover valve. I have not seen any pictures of this. They stated the only way to fix it is to replace the entire fuel tank. $$$$ There were no check engine lights or any other warnings to notify me of this issue. If I had not parked it in a garage and smelled the fuel smell, I might not have known about this for a while possibly. My SUV has 94,067 miles on it and has not had any collisions or anything like that recently that could have caused this fuel leak.
ON A CLEAR DAY WITH A TEMPERATURE OF ABOUT 65 DEGREES, HAD BEEN DRIVING CAR APPROXIMATELY 25 MINUTES BETWEEN 45 TO 55 MILES PER HOUR, WIHT LAST AT LEAST 10 MINUTES AT 55. AFTER TURNING ONTO DIVIDED HIGHWAY AND DRIVING 55 MILES PER HOUR FOR ABOUT 7 MINUTES, WITH NO WARNING CAR STOPPED RESPONDING TO ACCELERATOR. HAD TO COAST ONTO SHOULDER. KEPT TRYING TO GET ACCELERATOR TO RESPOND.TRIED NO FOOT ON ACCELERATOR, LIGHTLY PRESSING ACCELERATOR AND COMPLETELY DEPRESSING ACCELERATOR AND EVERYTHING IN BETWEEN FINALLY WAS ABLE TO GET CAR TO DRIVE AT APPROXIMATELY 20 MILES PER HOUR, THEN CAR CEASED RESPONDING TO ACCELERATOR AND STALLED. RESTARTED CAR AND COULD DRIVE AT APPROXIMATELY 1/2 MILE PER HOUR EVEN WHEN FLOORING AND OR FLUTTERING ACCELERATOR. TRIED TO RESTART CAR NUMEROUS TIMES AND IT WOULD START, THEN IMMEDIATELY STALL OUT. CAR THEN CAR COMPLETELY CEASED RESPONDING TO ACCELERATOR. HAD TO HAVE TOWED AND AM AWAITING RESPONSE FROM TECHNICIAN. I INITIALLY THOUGHT THE CAUSE MAY BE A FUEL PUMP, BUT AFTER READING COMPLAINTS FROM FORD EDGE CUSTOMERS SUSPECT IT MAY BE A THROTTLE BODY ISSUE. WILL WAIT TO HEAR FROM TECHNICIAN. THIS WAS A VERY DANGEROUS SITUATION DROPPING FROM 55 TO 0 WITHIN LESS THAN A MINUTE.
PROBLEMS WITH THE ELECTRONIC THROTTLE BODY (ETB). WHEN DRIVING, THERE IS AN EXTREME, SUDDEN AND DANGEROUS LOSS OF POWER. AT THE SAME TIME, FORD'S INFAMOUS "WRENCH WARNING LIGHT' FOR THIS PROBLEM COMES ON AND THE CAR ENTERS INTO THE 'LIMP HOME MODE'. THIS IS THE SAME PROBLEM THAT FORD / LINCOLN IS HAVING IN WHICH THE NHTSA HAD OPENED AN INVESTIGATION IN FEB. 2013 AFTER THOUSANDS OF FORD / LINCOLN OWNERS COMPLAINED OF THE SAME ISSUE I AM CURRENTLY HAVING, THEN CLOSED IT AFTER FORD AGREED TO 'FIX 1,600,000 CARS THAT "LIMPED HOME"'. MY RESEARCH SHOWS THAT FORD CLAIMS THAT CUSTOMER SATISFACTION PROGRAM 16B23 HAS BEEN ISSUED. HOWEVER, WHEN I CONTACTED LINCOLN HQ, THEY STATED THAT SINCE NHTSA HAS CLOSED THIS INVESTIGATION, THEY ARE NOT WILLING TO INCLUDE MY VIN WITH THIS REPORTED PROBLEM. THIS PROBLEM IS GETTING WORSE AS WELL. IT HAS HAPPENED 5 TIMES NOW AND EVERY TIME, I HAVE TO PULL OFF TO THE SIDE OF THE ROAD AND SHUT THE VEHICLE OFF. I CALLED THE LINCOLN DEALERSHIP WHERE THE VEHICLE WAS PURCHASED AND THE SERVICE MANAGER WAS WELL AWARE OF THE PROBLEM AND STATED THAT HE FIXES THESE 'ALL THE TIME' AT $160.00 FOR THE PART, AND $400.00 FOR THE LABOR. PLEASE REOPEN THE NHTSA INVESTIGATION / CASE TO INCLUDE MY VIN IN THIS 'RECALL' OR WHATEVER FORD WANTS TO CALL IT. *TR
TL* THE CONTACT OWNS A 2011 LINCOLN MKX. THE CONTACT STATED THAT HE BEGAN TO SMELL A STRONG ODOR OF GASOLINE WHILE DRIVING AND THE VEHICLE WAS IMMEDIATELY TOWED TO THE DEALER. THE TOW COMPANY DETECTED A LEAK IN THE ENGINE. THE CONTACT STATED THAT THE FAILURE MOSTLY OCCURRED WHEN THE ENGINE WAS HOT. THE CONTACT WAS AWAITING DIAGNOSIS OF THE FAILURE. THE FAILURE AND CURRENT MILEAGE WAS 2,900. UPDATED 5/9/11 *CN THE DEALER REPLACED A LEAKING FUEL LINE. UPDATED 05/23/11
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 26, 2026