Various vehicles equipped with a 4.6L, 5.4L, 6.8L modular 3 valve engine built on or before 8-Jan-2016 may exhibit symptoms that may include upper end engine noise, rough running, misfire and/or engine damage. If diagnosis leads to only camshaft/camshaft roller follower(s) requiring replacement, replace all of the camshaft roller followers on both banks/cylinder heads with part number 3L3Z-6564-A, not just the faulty roller follower(s). When replacing the camshaft roller followers, refer to Workshop Manual (WSM), Section 303-01.
full bulletin at NHTSA ↗2006 Lincoln Mark LT engine problems
severe 9 complaints filed with NHTSA · avg repair $3,100 · see engine across all vehicles →
Complaints
9
Recalls
0
Avg fix
$3,100
1fire
1injury
When does it fail?
Of the 9 engine complaints filed for the 2006 Lincoln Mark LT, here's the actual mileage breakdown — failures cluster heaviest at 25,000-50,000 mi.
0-25k
25-50k
50-75k
75-100k
100-125k
125-150k
150k+
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
What stands out
Engine accounts for 29% of all owner complaints filed against this vehicle, across 5 categories tracked.
No new NHTSA engine complaint has been filed on this vehicle in over 19 years — the issue may be aging out of the active population.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering engine on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
The Powertrain Control/Emissions Diagnosis (PC/ED) manual has been revised for diagnosing electronic throttle bodies (ETBs). The ETC_ACT and ETC_DSD PIDs should not used to diagnose possible ETB concerns. The IDS has a limited refresh rate when reading these PIDs and cannot display quickly enough to validate a concern. The PCM automatically monitors these inputs more accurately and will set diagnostic trouble codes (DTCs) when appropriate. Using these PIDs for diagnostics will lead to inaccurate results and improper ETB replacements. If a concern is intermittent and no DTCs are present, refer to historical DTCs and the PC/ED, Section 3 No DTCs Present Index chart for further information.
full bulletin at NHTSA ↗LINCOLN/FORD: WHEN DRIVING FROM IDLE UP TO 1200 RPM, THERE MAY BE AN INTERMITTENT RATTLE NOISE COMING FROM ENGINE. 2004-2013 F-150, F-250, F-350, EXPEDITION, MARK LT, NAVIGATOR.
full bulletin at NHTSA ↗FORD/LINCOLN/MERCURY: IF BATTERY WAS DISCONNECTED OR DEAD, VEHICLES/TRUCKS MAY EXPERIENCE HARD STARTS AND ENGINE IDLE RPM FLUCTUATION AND EXHIBIT DIAGNOSTIC TROUBLE CODES (DTCS) P0505, P0506, P2111 AND P2112.
full bulletin at NHTSA ↗FORD/MERCURY/LINCOLN: VEHICLES MAY EXHIBIT ONE OR MORE OF THE FOLLOWING SYMPTOMS: DRIVE AWAY HESITATION, LOSS OF RPM ON DECELERATION, DIFFICULTY STARTING, AND/OR IDLE RPM LESS THAN DESIRED. THE F53 MOTORHOME CHASSIS IS INCLUDED.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
What owners are reporting 7 most recent
Tl*- the contact purchased a 2006 Lincoln, it was leaking transmission oil. The vehicle caught fire after repair on 11/14. Fire dept said the fire was of unknown origin. The vehicle had been driven 50 miles when the contact stopped to get gas when she noticed smoke entering the passenger compartment of the car and under the hood. She injured her knee trying to get her grandson out of his car…
Lincoln mark lt 2006. As my father proceeded down his drive-way stopping in front of his garage the truck suddenly accelerated in excess of 40 miles an hour. The truck went through the garage door hitting his Cadillac escalade, and pushing the escalade through the north wall of his garage. Estimated damage to garage, Lincoln, and escalade exceeds $30,000.00. Neither airbag deployed, and the only…
Faulty code comes on at between 50 _ 60 MPH and the sterring and brakes lockes up and engine shuts off
Tl* the contact owns a 2006 Lincoln mark lt. The contact stated while driving 55 MPH the engine lost power causing the vehicle to stall. The contact merged the vehicle onto the shoulder where it restarted immediately. The engine safe light illuminated each time the vehicle stalled. The vehicle was taken to the dealer three times for the failure. A diagnostic test was performed; however, there…
During a 100k mile tune up, I attempted to change spark plugs. Out of 3 plugs, 2 broke off in engine block. The truck was then taken to a mechanic who broke off 3 more. They told me that Ford is very aware of the problem and would not do anything about it. It cost me $800 to have spark plugs removed. Now it appears that a part of the old plug broke off into the cylinder head, not removed by…
I have a powertrain warranty for my truck an Ford says I have sludge in engine an I gave them all oil change receipts my warranty is up in oct 2011 an Ford is dying to fix it please help. *tr
The engine stop running sometimes. It says "engine fail safe mode" need to completely stop and restart the engine.. Then okay.. It happens not only once but few times already..it happens when the car is in motion..running around 40 to 60 miles MPH.
Had engine trouble with your 2006 Lincoln Mark LT?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the engine problem on the 2006 Lincoln Mark LT?
It's a meaningful issue. 9 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $3,100.
At what mileage does the engine typically fail?
Based on the 9 complaints filed, engine issues most often appear around 79,107 miles. Some report problems earlier; some make it well past 150,000 with no symptoms. Maintenance habits matter — vehicles that received timely fluid services and were not regularly overworked tend to last longer.
What does it cost to fix?
Independent shops typically charge around $3,100 for engine repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to engine?
No active recalls currently cover engine issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2006/Lincoln/Mark LT.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.