Lincoln MKS Transmission Problems & Cost | 6F50

The Lincoln MKS was equipped with the 6F50 transmission. But they aren’t without their problems though, so let’s look at some of the most common Lincoln MKS transmission problems, look at cost estimates and figure out what you can do about them.

Need a replacement transmission? Get an estimate for replacement transmissions and local installation. Look up your transmission model by vehicle make and model.

What Transmission Do I Have?

Lincoln MKS Transmission Models

Lincoln MKS: 6F50 Transmission

Lincoln MKS Transmission Replacement Cost Estimate

Pricing varies by model. To be 100% sure on pricing, have your VIN# handy and use our Get An Estimate feature to look up your transmission by VIN#.

Replacement Lincoln MKS Transmission Prices:

TransmissionStreet Smart TransmissionAutozoneAdvance Auto PartsDealer Retail
6F50 / 6F352295235526493387

What are the DTC codes related to Lincoln MKS transmission problems?

Trouble CodeDescription
P0703Torque Converter/Brake Switch B Circuit
P0705Transmission Range Sensor Circuit Malfunction (PRNDL Input)
P0707Transmission Range Sensor Circuit Low Input
P0708Transmission Range Sensor Circuit High Input
P0711Transmission Fluid Temperature Sensor Circuit Range/Performance
P0712Transmission Fluid Temperature Sensor Circuit Low Input
P0713Transmission Fluid Temperature Sensor Circuit High Input
P0714Transmission Fluid Temperature Sensor Circuit Intermittent P0715
P0715Input/Turbine Speed Sensor Circuit
P0717Input/Turbine Speed Sensor Circuit No Signal
P0718Input/Turbine Speed Sensor Circuit Intermittent
P0720Output Speed Sensor Circuit
P0721Output Speed Sensor Circuit Range/Performance
P0723Output Speed Sensor Circuit Intermittent
P0729Gear 6 Incorrect Ratio
P0733Gear 3 Incorrect Ratio
P0734Gear 4 Incorrect Ratio
P0735Gear 5 Incorrect Ratio
P0748Pressure Control Solenoid 'A' Electrical
P0750Shift Solenoid 'A'
P0751Shift Solenoid 'A' Performance or Stuck Off
P0752Shift Solenoid 'A' Stuck On
P0753Shift Solenoid 'A' Electrical
P0755Shift Solenoid 'B'
P0756Shift Solenoid 'B' Performance or Stuck Off
P0757Shift Solenoid 'B' Stuck On
P0758Shift Solenoid 'B' Electrical
P0760Shift Solenoid 'C'
P0761Shift Solenoid 'C' Performance or Stuck Off
P0762Shift Solenoid 'C' Stuck On
P0763Shift Solenoid 'C' Electrical
P0765Shift Solenoid 'D'
P0766Shift Solenoid 'D' Performance or Stuck Off
P0767Shift Solenoid 'D' Stuck On
P0768Shift Solenoid 'D' Electrical
P0770Shift Solenoid 'E'
P0771Shift Solenoid 'E' Performance or Stuck Off
P0772Shift Solenoid 'E' Stuck On
P0773Shift Solenoid 'E' Electrical
P0774Shift Solenoid 'E' Intermittent
P0777Pressure Control Solenoid 'B' Stuck On
P0778Pressure Control Solenoid 'B' Electrical
P0817Transmission Fluid Pressure Manual Valve Position Switch Reverse with Drive Ratio
P0817Starter Disable Circuit
P0960Pressure Control Solenoid “A” Control Circuit/Open
P0962Pressure Control Solenoid “A” Control Circuit Low
P0963Pressure Control Solenoid “A” Control Circuit High

Lincoln MKS Transmission Recalls

None Found

Lincoln MKS Technical Service Bulletins (TSB)

TSB 10-22-4 – AWD vehicles – Shudder/chatter/vibration on turns or thump/clunk noise on light acceleration – 6F Transmission
2010 Ford Fusion – 2010 Ford Taurus – 2010 Ford Edge – 2010 Ford Flex – 2010 Mercury Milan – 2010 Lincoln MKS – 2010 Lincoln MKZ – 2010 Lincoln MKT – 2010 Lincoln MKX
Problem – Certain vehicles built between 10/1/2009-12/31/2009 equipped with all-wheel-drive, may experience a shutter or vibration in the driveline during a tight turn. They may also experience a thump or clunk noise during light acceleration. These symptoms may also occur under 40 mph (64 KM/H), when driving uphill or towing under heavy acceleration.
Solution – Installing a properly remanufactured PTU (Power Transfer Unit— a simplified transfer case) may solve this problem.

TSB 11-12-10 – Sluggish acceleration from 0-5 mph (0-8 km/h) followed by harsh bump or slip on takeoff – 6F35 Transmission & 6F50 Transmission
2010 – 2011 Ford Taurus – 2009 – 2011 Ford Edge – 2009 – 2011 Ford Flex – 2011 Ford Explorer – 2010 – 2011 Lincoln MKS – 2009 – 2011 Lincoln MKX – 2010 – 2011 Lincoln MKT
Problem – Some vehicles may experience sluggish acceleration or a hesitation feel during a rolling stop, followed by a harsh bump or slip feeling. This can be caused by a design flaw in the 6F35 valve body / 6F50 valve body.
Solution – On transmissions originally built for Mercon LV transmission fluid (listed on the dipstick), the valve body will have to be modified by deleting one hole in the valve body separator plate, and removing the check ball in the area of the deleted hole. If this modification is not performed properly, the transmission may experience a loss of reverse or a 2-3 shift flare.

TSB 15-0047 / 17-2219 – Push button start – Shift to Park or Transmission Not In Park message – discharged battery – unable to remove key
2011 – 2017 Ford Edge – 2011 – 2017 Ford Explorer – 2011 – 2017 Ford Flex – 2011 – 2017 Ford Police Interceptor Sedan – 2011 – 2017 Ford Taurus – 2011 – 2016 Lincoln MKS – 2011 – 2017 Lincoln MKT – 2011 – 2015 Lincoln MKX
Problem – Vehicles equipped with a floor shift selector lever and push button start, may display a ‘Shift To Park’ or ‘Transmission Not In Park’ message, even though the transmission is actually in Park. It may also not be possible to remove the transmitter key, and the battery may discharge due to the warning message remaining illuminated.
Solution – Install new park detect switch

TSB 10-21-2 / 10-17-4 – Slipping, 5th gear starts from stop, PRNDL display error, backup camera on while vehicle is in Drive – 6F50 Transmission & 6F55 Transmission
2009 – 2011 Ford Taurus – 2009 – 2011 Ford Edge – 2009 – 2011 Ford Flex – 2009 – 2011 Lincoln MKS – 2009 – 2011 Lincoln MKT – 2009 – 2011 Lincoln MKX
Problem – Certain vehicles may intermittently experience slipping, 5th gear starts from a stop, the electronic PRNDL display may flash errors, and the backup camera may be on while the vehicle is in Drive.
Solution – Install new Ford transmission range sensor / TR sensor.

Common Problems with the Lincoln MKS Transmission

Lack of Response
Leaking Fluid
Low Fluid
Burning Smell
Grinding or Shaking
Whining, Clunking or Humming
Refuses to Go Into Gear
Torque Converter Issues
Valve Body Issues
Transmission Noisy in Neutral
Gears Slipping
No 3rd or 4th Gear
No 1st or 2nd Gear
No Reverse
Dragging Clutch
Trouble Codes / Check Engine Light

Can I drive with a transmission problem?

If your Lincoln MKS can still make it up and down the road, you might say “It’s fine, I’ll just drive it until I can get it fixed”. But that is not always a good idea, depending on the symptoms. You see, there are a lot of (very expensive) moving parts inside of a transmission, and if something isn’t right, continuing to drive with a transmission problem could damage something else.

How often does a Lincoln MKS transmission need to be replaced?

The overall lifespan of a Lincoln MKS transmission largely depends on how well it was maintained. Factory design flaws also factor into this equation, along with how/how hard you drive. But on average, we’ve seen the Lincoln MKS transmission last for between 130,000-180,000 miles. A high quality replacement transmission however, can last considerably longer if all of the factory design flaws have been addressed and the vehicle has been maintained.

How are Lincoln MKS transmission issues diagnosed?

It is fairly easy to guesstimate what the root cause of your Lincoln MKS transmission problems might be, but you won’t truly know unless you have the right tools and experience. A good mechanic or transmission repair center will be able to connect your truck to a computer and find out which diagnostic trouble codes (DTC’s) have been stored. Once they know what to look for, they can perform a visual inspection to verify the problem.

How is a Lincoln MKS transmission replaced?

In order to replace your Lincoln MKS transmission, the truck has to be lifted from the ground in order to gain access to all of the parts that will need to be unbolted. Then the transmission can be lowered to the ground (typically with a transmission jack), so the new transmission can be installed. Once it is in place, for the 6L80, the vehicle PCM will have to be reprogrammed / reflashed to accept the new transmission using the latest GM subscription.

Recommendations for Lincoln MKS transmission issues?

To save time and get back on the road faster, have your 17-digit truck VIN# handy and you can get an online quote for a reman Lincoln MKS transmission here, then find a local shop using our Find a Shop guide to install it for you.

How to Solve Lincoln MKS Transmission Problems

Solution A: Buy a Used Lincoln MKS Transmission

The quickest way to fix your transmission problems is to simply buy a used transmission or used transmission. These can be found at most junk yards, and they often come with a 30-90 day warranty. However, there’s no way to determine the actual condition of the internal components, so you could be spending a bunch of money to have the exact same problems. Plus, that warranty only covers the transmission if it’s defective, not the labor costs that you’ll have to pay.

Solution B: Buy a Rebuilt Lincoln MKS Transmission

Another option would be a rebuilt transmission or rebuilt transmission. A local repair shop will remove your transmission, then install a bunch of new parts during the rebuild. The problem here is, the skills and experience of each transmission rebuilder will vary widely from shop to shop, so you could have problems from something that wasn’t adjusted properly. And the 1-2 year warranty might only cover you at certain transmission repair shops, in a specific geographical area.

Solution C: Buy a Remanufactured Lincoln MKS Transmission

Many owners depend on their vehicle to commute and get things done. Their gasoline engines are designed to go 100’s of thousands of miles, so it makes sense to invest in a remanufactured transmission.

Need a replacement transmission? Get an estimate for replacement transmissions and local installation. Look up your transmission model by vehicle make and model.

What Transmission Do I Have?

What Problem Does Your Lincoln MKS Have?

Let us know the year, mileage and problem you’re having as well as any trouble (OBD) codes you’ve found. If you’ve been given a quote or paid for a repair, we’d like to hear about that too!

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James Williams
15 days ago

I have a 2011 Lincoln MKS. The car g head 148,000 miles. The car “Shudders” between 20 and 45mph usually going up on a slight incline. I’ve had it to two different Dealerships and one private garage. I’ve paid for an fuel injection cleaning, a Transmission Fluid Change, a complete tune up including replacing the coil packs and plugs. A new Mass Airflow Sensor, Fuel Injection Sensor and I had the Power Train Module re calibrated. I’ve called Lincoln at least 5 times to no avail. No mechanic/technician can figure this out. Can anyone help? I’ve invested over $3,000.00 with no correct repair. VIN is

Jess
1 month ago

Anytime breaking the car will instead accelerate. Won’t shift gears and continue to kick forward with a clunk noise anytime it’s trying to shift gears. And when applying gas it won’t go

Anthony T Miller
4 months ago

Transmissions shaking and sluggish and wont go in 3rd or 4th gear’s looking for a replacement one now

BOB L.
10 months ago

6f50 tranny on 2011 lincoln mks with 76000 miles. no towing . lincoln service manager this month july 2020 stated the following. technical bulletin came out some time ago stating that they no longer flush out this tranny fluid with their specialized servicce equip. it was back flushing all the particles back into the tranny from the built in lifetime filter. said you could drain out about 6-7 quarts of the old fluid and refill which should last about 30k miles and then repeat. thats using the original mercon LV FLUID not the new thinner ULV FLUID. was also told that if you did not abuse your tranny that he would just drive the car until 150,000 miles on the original thicker fluid which quite a few of his customers have been doing without any problems. THEY CHARGE $169.95 FOR THE DRAIN AND REFILL. he said for approx $325.00 at 150,000 miles they could pump approx 30 qts of new fluid thru your tranny without the flush which would also clean out the torque converter old fluid. this guy has been service manager for decades at big lincoln dealership. he also said origiinal fluid is wine colored when new and after 5000 miles looks like chocolate being real ugly which doesn’t affect the perfformance what so ever.

George G
1 year ago

2009 MKS EcoBoost has a shutter in 3rd gear just before it shifts to 4th gear. It doesn’t do this when shifted manually. I had it checked by a very reliable transmission shop and they didn’t think it was in the transmission. Any ideas?

Cornelius
1 year ago

2009 3.7 FWD 93K miles – Following a hard acceleration, engine light comes on, no codes displayed

Adrian S West
2 years ago

2010 Mks ecoboost, makes a whirring noise while the transmission shifts from 3rd on to 6th gear, it’s killing me to know what this could be?? Any help would be appreciated..

Brock
1 year ago
Reply to  Adrian S West

This is far to late and I don’t know if you realize.. but your 2010 MKS Ecoboost is twin turbo. That whirring noise you are hearing is most likely the turbo’s in your car.

Robert j. Byron
2 years ago

2010 MKS 52000 miles when driven in rainy weather it feels like the torque converter is not working properly. Only when it rains. I believe it is an electrical issue

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