Car

Ask a Mechanic Online and Get Answers to Your Car Questions

Ask an Expert,
Get an Answer ASAP!

Car
This answer was rated:

Lincoln MKX: My 2008 MKX has done the following twice. The

My 2008 MKX has done...
My 2008 MKX has done the following twice. The first, while my wife was driving to work, the wrench icon came on, lost all but a little power, seatbelt lights came on, then tire inflation sensor came on. When I went to look at car, when I put in in reverse, it felt like the drive shaft was going to fall out, very loud bang. Had very little if any power in drive. Had it towed to transmission shop, thinking it was trans problem. Guy called me back two days later and said he couldnt find anything wrong with car. He said it hit really hard in reverse the first time, but nothing after that. Same thing happened two weeks later but made it home. I checked it a few days later and it hit hard in reverse about 5 times and had very little power in drive. After about the 5th time, everything seems to work fine again
Show More
Show Less
Ask Your Own Car Question
Answered in 8 hours by:
5/14/2013
Gene
Gene, Auto Service Technician
Category: Car
Satisfied Customers: 6,000
Experience: ASE Master 28 years experience, Ford Trans Tech/SMT, Toyota, Mitsubishi,Hyundai Tech.
Verified
Sounds like a problem with the turbine speed shaft sensor or output shaft speed sensors. Usually they will set diagnostic trouble codes p0717 or p0720 when they see a fault. these 2 sensors tell how fast the trans input and output shafts are turning and based on how fast, help control the transmission shift points, etc. when they mess up it slams into gear and feels like its gonna blow the trans apart. Very common, there is even a technical service bulletin out about it. Basically you should replace both sensors since you need to pull the trans side pan off and valve body for the output shaft sensor. Replace both sensors and top off the fluid and you should be good to go.

6F50 TRANSAXLES BUILT PRIOR TO 10/21/2007 -
DTC P0715, P0717, P0718, P0720, P0721, P0722
AND/OR HARSH ENGAGEMENT, NO UPSHIFT, FIFTH
GEAR ONLY
FORD:
2008 Taurus X, Taurus
2007-2008Edge
LINCOLN:
2007-2008 MKX
MERCURY:
2008 Sable
This article supersedes TSB 07-3-11 to update the transaxle built date coverage and Part List.

ISSUE
Some 2007-2008 Edge and MKX, 2008 Taurus Taurus X, and Sable vehicles equipped with a 6F50 transaxle with a build date prior to 10/21/2007, with any Output Shaft Speed (OSS) sensor or Turbine Shaft Speed (TSS) sensor diagnostic trouble code(s) (DTCs) P0715, P0717, P0718, P0720, P0721, P0722 and/or harsh engagements, no upshift, fifth gear only, could have an intermittent short in the OSS or TSS sensor.
ACTION
Follow the Service Procedure steps to correct the condition.
SERVICE PROCEDURE

1. If any DTCs related to OSS or TSS are present, check the transaxle build date following Workshop Manual (WSM), Section 307-01.
a. If the build date is before 10/21/2007 go to Step 2.
b. If vehicle transaxle is built on or after 10/21/2007 do not continue with this TSB and follow normal WSM, Section 307-01 Automatic Transaxle/Transmission-6F50 Diagnosis and Testing.

. To repair an OSS or TSS DTC refer to WSM, Section 307-01, follow pin point test (PPT) C. The TSS sensor is located in the end cover assembly (Figure 1). The OSS sensor is located inside the transaxle under the main Control (Figure 2). Both sensor connectors are plugged into the solenoid body. Both sensor connectors look the same but are wired differently (Figure 3).
3. If you work through PPT C and get to Step C9 before finding the cause of the concern, replace the sensor (DO NOT REPLACE THE POWERTRAIN CONTROL MODULE (PCM) AT THIS TIME). Reassemble as needed and verify the concern is fixed.

TSB number is XXXXX
Ask Your Own Car Question
Customer reply replied 4 years ago

Any idea of the cost to replace these two sensors?

Customer reply replied 4 years ago

So, if I have this at shop, will these codes come up even if vehicle is running fine and there are no icons on dash?

yes there should be a code set if the problem is occuring, some shops dont have dealer type scan tools which read proprietary codes, they need a high end scanner to be able to see them stored. it usually runs around 3-4 hours labor based upon service center labor rate. and parts pricing will vary as they might be a dealer item only on the two sensors.probably a few hundred bucks altogether
Gene
Gene, Auto Service Technician
Category: Car
Satisfied Customers: 6,000
Experience: ASE Master 28 years experience, Ford Trans Tech/SMT, Toyota, Mitsubishi,Hyundai Tech.
Verified
Gene and 87 other Car Specialists are ready to help you
Ask your own question now
ty for accepting my answer and the bonus, please let me know if I can be of more help!
Ask Your Own Car Question
Ask Gene Your Own Question
Gene
Gene
Gene, Auto Service Technician
Category: Car
Satisfied Customers: 6,000
6,000 Satisfied Customers
Experience: ASE Master 28 years experience, Ford Trans Tech/SMT, Toyota, Mitsubishi,Hyundai Tech.

Gene is online now

A new question is answered every 9 seconds

How JustAnswer works:

  • Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction GuaranteeRate the answer you receive.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

I would (and have) recommend your site to others I was quite satisfied with the quality of the information received, the professional with whom I interacted, and the quick response time. Thanks, and be sure that I'll be back whenever I need a question answered in a hurry.

Stephanie PElm City, NC

used your service this weekend with "Trecers" help. thank you ,thank you, thank you. replaced an A/C fan motor. Local Auto Zone had part. $15.00 "tracer" fee and $40.00 for parts, I saved several hundreds of dollers at a shop. i will recommend you and use you in the future.

David L.Richmond, TX

9 dollars, 2 hours of my time, and I drove away. Your diagnosis was right on the mark. Thank you so much.

PhilMarysville, CA

Lurch. Thank you very much. I had real doubts about this website but your promptness of response, quick followup and to the point answer with picture was incredible.

CharlesWalnut Creek, CA

As a single woman, I really appreciate an excellent and affordable opinion.
Thank you Geordie, I will not hesitate to contact justanswer in the future!

SueCharleston, WV

Another great insight to what may be the problem. I will have my mechanic take a look at it tomorrow. Thanks again, Frank...you do indeed know your stuff.

JimCastleberry, FL

The nearest Volvo dealer is 160 miles away. Best $15 bucks I have spent in a long time!

Paul MCorpus Christi, TX

< Previous | Next >

Meet the Experts:

Chris (aka-Moose)

Chris (aka-Moose)

Technician

1,243 satisfied customers

16 years of experience

Ted G.

Ted G.

ASE Certified Technician

1,724 satisfied customers

20 years auto repair experience, ASE Master Tech, Mechanical Failure consultant, Expert Witness

George H.

George H.

ASE Certified Technician

1,537 satisfied customers

ASE Master Tech 15+ yrs, AAS Automotive Technology, Factory trained Asian specialist

GM Tech (Cam)

GM Tech (Cam)

Auto Service Tech

669 satisfied customers

GM Grand Master Technician 2007. 14 years experience.

Amedee

Amedee

Former ASE Master Tech

2,520 satisfied customers

ASE certified tech advanced level specialist. Wisconsin certified emissions state inspector

Jerry

Jerry

Master Mechanic

2,181 satisfied customers

ASE master, 30+ years. All makes and models. Trouble shooter, shop forman, service manager

Richard

Richard

ASE Certified Technician

1,000 satisfied customers

12 years Ford Lincoln/Mercury Jaguar dealership as a technician and shop foreman reparing all makes

< Previous | Next >

Related Car Questions
I have a 2013 Hyundai Elantra and when the rpms hit 2000,
I have a 2013 Hyundai Elantra and when the rpms hit 2000, the mph is at 40. An I'm just wondering if that's correct or not? Because it doesn't feel the same as usual. … read more
Stephen, MBA
Stephen, MBA
Master's Degree
166 satisfied customers
Am in need of a recommendation for a car cover for my s2000.
Am in need of a recommendation for a car cover for my s2000. I live in Seattle so water proof would be the key feature I am looking for. Any thoughts? Thanks.… read more
Kavey
Kavey
86 satisfied customers
Started smelling gas and noticed a black/tarry substance
started smelling gas and noticed a black/tarry substance near the right rear tire. substance hardens after it cools on the garage floor. … read more
Eric
Eric
Retired
N/A
14,436 satisfied customers
My engine losses power and stalls, but starts right back up,
My engine losses power and stalls, but starts right back up, no lights come on until it stalla … read more
rpmdiag
rpmdiag
High school
7,274 satisfied customers
My special programs arent working keeps saying its off and
my special programs arent working keeps saying its off and faulty and when i bought the car they replaces two o2 sensors that was coming up and they replaced them and it still coming up and the light … read more
Chris (aka-Moose)
Chris (aka-Moose)
Technician
Vocational, Technical or Trade School
1,243 satisfied customers
My heater. My liquids are fine yes It blows heat or cold
My liquids are fine yes It blows heat or cold whichever I select but at a very minimum even when I put it a full blast … read more
Kevin
Kevin
workshop foreman /master tech/mot tester
0 satisfied customers
Screen failure of the Nav unit. 2008. Only tried the dealer,
only tried the dealer, and got quoted the price of the whole replacement unit (wtf) … read more
Kevin
Kevin
workshop foreman /master tech/mot tester
0 satisfied customers
My wipers when turned off park in the middle of the
My wipers when turned off park in the middle of the windshield … read more
Jaybird61
Jaybird61
Master Automotive Mechanic
2,230 satisfied customers
My vx401 clarion touchscreen does not work. I can see it but
my vx401 clarion touchscreen does not work. I can see it but touching does nothing. Only on/off and vollume button works. Tried reseting and unpluging from power and no success. Any special trick to m… read more
Stephen, MBA
Stephen, MBA
Master's Degree
166 satisfied customers
Last night on my my drive home from work traction control
last night on my my drive home from work traction control light came on and check engine light and reduced engine power. parked it and today it wont start at all … read more
Stephen, MBA
Stephen, MBA
Master's Degree
166 satisfied customers
I want to remove 2nd row seats out of the car on my 2006
Hello, I want to remove 2nd row seats out of the car on my 2006 volvo xc90. Can I do it myself without problems with srs warning? … read more
vwtech0405
vwtech0405
VW Technician
Associate Degree
8,868 satisfied customers
We just replaced the lifters in my GS350 2008 as they were
Hi we just replaced the lifters in my GS350 2008 as they were very loud but only one side seems to have been resolved … read more
Chad Farhat
Chad Farhat
Owner
Associate Degree
4,433 satisfied customers
I have a 2014 Fusion Hybrid and we're having problem with a
I have a 2014 Fusion Hybrid and we're having problem with a coolant over temperature light. When it is cold outside around 45 degrees and colder tue heater will start blowing cold air and the check ma… read more
Stephen, MBA
Stephen, MBA
Master's Degree
166 satisfied customers
I have a 2001 cl63 that won't start with the key. If I use
I have a 2001 cl63 that won't start with the key. If I use the keyless start it starts the fan and electric but doesn't engage the starter motor. Any help would be appreciated … read more
Lou P. master tech
Lou P. master tech
Mercedes Benz master tech
Bachelor's Degree
649 satisfied customers
I have a P0741 error code on a 2007 Toyota Corolla, which is
I have a P0741 error code on a 2007 Toyota Corolla, which is the Torque Converter Clutch Circuit Performance or stuck off. I have had this code for 2 months. I took it to a mechanic a month ago and he… read more
jim
jim
Vocational, Technical or Trade Scho
702 satisfied customers
Had a hard freeze. Car was hard to start and noticed black
Had a hard freeze. Car was hard to start and noticed black gunk shoot out. Car had a oil change recently. The car drove normally and made it to work. The car wouldn't start and I flooded the engine. L… read more
Toyota Service
Toyota Service
Toyota Dealership Service & CR Manager
1,344 satisfied customers
Is there a service bulletin from suzuki about after market
is there a service bulletin from suzuki about after market water pumps? … read more
eurotec
eurotec
Vice President / Manager
Associate Degree
11 satisfied customers
Is this something which needs immediate attention on my
Steve, is this something which needs immediate attention on my Acadia or more of an annoyance?… read more
Stephen, MBA
Stephen, MBA
Master's Degree
166 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less

Ask Your Question

x