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2010 Mercury Mariner engine complaints

Page 2 of 3: complaints 11 to 40 of 63, newest first, as owners wrote them.

See the summary of 2010 Mercury Mariner engine problems: which part fails, at what mileage and related recalls.

Filed Aug 26, 2015 · Electrical, Engine · 130,980 miles · MD

Tl* the contact owns a 2010 mercury mariner. While driving at approximately 45 MPH, the maintenance warning light illuminated and the vehicle jerked violently. In addition, the vehicle failed to accelerate when the accelerator pedal was depressed. The failure recurred intermittently. The vehicle was taken to the dealer, who inspected the vehicle but was unable to diagnose the failure. After leaving the dealer, the maintenance and the engine warning light illuminated. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was 130,980.

Filed Jun 25, 2015 · Acceleration, Engine · 78,000 miles · FL

Vehicle surges wildly at idle speeds in traffic. Vehicle stalls out while driving regular highway speed, surges wildly while driving, RPM spikes drastically while driving and at idle. Stalls and surges both while entering traffic from a stopped position and while driving at regular pace. Struggles to crank after fueling the vehicle. Spits and sputter and shakes while at idle....updated10/20/15

Filed Jun 22, 2015 · Electrical, Engine · 52,000 miles · GA

Tl* the contact owns a 2010 mercury mariner. While driving at approximately 75 MPH, the vehicle suddenly stalled. The vehicle was restarted, but the failure recurred. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The failure mileage was 52,000.

Filed Mar 10, 2015 · Acceleration, Engine · 73,400 miles · AL

The car would not accelerate and the wrench symbol illuminated. I had to pull over turn off the car and restart it.

Filed Mar 3, 2015 · Electrical, Engine · 39,189 miles · NC

Vehicle electronic throttle body (etb) was replaced at veterans ford dealership in tampa, fl due to this part severely effecting ability of the vehicle to run properly (several times). Customer paid for this repair. Sometime after 3/4/14 when the federal safety agency completed their investigation, we received a notice that ford was replacing this item. Since we already paid for the repair ($381.32) at a ford dealership, we tried to get the reimbursement that ford owes us. We were informed we had to have the original receipt, which to this day is still packed up in storage if we have it at all because we moved from fl to nc and are still involved in buying a new home. The bottom line is ford (corp) is refusing to honor their agreement to reimburse customers. The craziest part of this whole dilemma is that ford has and controls 100% of the information needed to process our reimbursement, but absolutely refuses to do so without the original receipt. I could understand if we had this repair done at some unrelated, third party service facility. However, we went to a ford dealership and they have record of completing the repair and us paying them for the repair. So again, ford has all the information (proof) in their possession to take care of this reimbursement, but refuses to do so. I have called the customer (dis)satisfaction department at ford corporate, but that is like talking to a brick wall as far as anyone having in common sense, accountability or decency to do the right thing (certainly any kind of good will is lacking in that organization). So here I am having to complain to the federal safety agency to get ford to do what they promised in the first place. I look forward to a timely reply letting me know you guys have this handled. Additionally, ford should be reprimanded severely for such [xxx] behavior and attitude. Maybe a consumer reporter needs to get involved in all this. Thanks. Information redacted pursuant to the freedom of information act (foia), 5 u.s.c. 552(b)(6).

Filed Aug 27, 2014 · Electrical, Engine · 63,968 miles · MI

This vehicle was purchased used from a lincoln mercury dealer in early july, 2014. Mileage was approximately 63,500 miles. At the time the air conditioning worked fine. Early in august we noticed the air conditioning was no longer cooling the vehicle. There was an outstanding recall --- 14s05 -- related to the power steering. I took the vehicle to a local ford dealer to have the recall work done. As a side issue I asked that the A/C be checked. To my horrified surprise I was told a "desiccant bag" in the A/C accumulator had burst and the tiny desiccant particles had spread throughout the system, clogging up various parts and causing the system to fail. These particles cannot be flushed out completely and the only fix is to replace all of the components of the A/C, for $2700!!!!! Because of the cost I have not had the work done. The dealer people advised me to file a complaint with the federal safety agency and to contact ford customer relations. I have done that, but no relief has been offered. I want to register my outrage at this situation particularly as a basic google search:" ford escape/mercury mariner air conditioning problems or desiccant bag" reveals many hundreds, probably thousands of similar complaints (repair costs up to $4000!) and show that ford has been aware of this issue for at least a couple of years but has taken no action. I urge you to have ford recall the affected vehicles and repair them at ford's expense. Thank you.

Filed Jul 17, 2014 · Engine, Fuel system · 59,800 miles · TX

During normal driving on the highway the engine lost power, the wrench light on the dash lit. The vehicle sputtered and suddenly decreased in speed, making for hazardous driving conditions. I moved to the side of the 4 lane highway and into the breakdown lane. I placed the vehicle in park, the engine idled roughly. I turned off and restarted the car and the symptoms were gone. A week later the same trouble returned. Please press fmc to resolve at no-cost to consumer the obvious and dangerous manufacture defect with a recall on the affected parts/system.

Filed Jul 15, 2014 · Engine, Transmission · 56,000 miles · MD

Was going home from work, about 20 MPH, car sputtered and stopped accelerating on ramp, engine and wrench light came on. This had happened before so I knew to turn the car off and back on to get my car to work again. But alas, I am driving at about 30 mpg for only 2 minutes and it happens again! I was again on another ramp, completely blocking traffic. Thank god I was not yet on I-95 going at a high speed, or even worse with my child in the car. If I ever get in an accident with my child and we are injured because of this, my family will sue the heck out of ford. Has to call my husband to drive the car to the dealer after I pulled off the road, I was shaking too bad to drive.

Filed Mar 28, 2014 · Engine · 26,000 miles · CA

Slowed to make a right hand turn into a parking lot and the vehicle stalled. There was no warning of an impending stall and no console lights came on other than the battery light and the oil light. The incident did not create an error code in the computer system as I took the vehicle to a ford dealership for service and to check for any issues with the vehicle. Ford repair shop found nothing wrong with vehicle upon inspection and said there was nothing they could do without an error code in the computer system. A stalling incident occurred again on 3/18/14. In this instance, again there was no warning. I had just exited off of the highway and was accelerating after a stop sign. The vehicle stalled in the middle of the road. Again, only the battery light and oil light came on.

Filed Jan 31, 2014 · Acceleration, Engine · 50,000 miles · FL

Twice in two days while speeding up to get on highway my mariner looses complete power and the wrench light comes on. Lucky for me it was just before I was turning on to merge. Seconds later it would have been a serious accident, due to the sudden stop. I had to shut the car off and start it back up in order to get going again. After reading #pe13003 has been file for the same exact problem with same make and model. Someone better react before someone looses a life. This is horrible.

Filed Jan 13, 2014 · Acceleration, Engine · 17,000 miles · TX

In 2011, while driving at approximately 60 MPH, I pressed the gas pedal and could not accelerate. The engine stayed on but I could not accelerate. I was able to turn on the hazards and pull off to the side of the highway. I turned off the vehicle and after waiting 5 minutes I restarted the vehicle and the gas pedal was working. Then again in october 2013, I was driving approximately 30 MPH when I lost acceleration capability. This time the throttle body indicator light was displayed. I took the vehicle in to a mechanic and he stated that nothing registered on the computer as a malfunction. He looked at the intake valve and could not see any build-up. In january 2014 this happened 3 times and I was able to restart the vehicle and proceed. However, on january 11, 2014 after the malfunction the vehicle did not reset immediately now the check engine light is displayed.

Filed Dec 22, 2013 · Acceleration, Engine · 50,000 miles · MD

Was at stop light completely stopped. When the light turned green, I stepped on the accelerator and my car did not accelerate. The engine light and another light came on. I tried multiple times to move the car and nothing happened. I powered my car down and restarted it, at this time the car started moving again when I pressed on the accelerator.

Filed Nov 22, 2013 · Acceleration, Engine · 47,000 miles · GA

While driving in heavy traffic in center lane of three line highway. Vehicle suddenly lost power creating a emergency situation. I had to force traffic to allow me proceed to side of the road. Endangering myself and my family, I sat for about 30 min. Before I could move the vehicle.

Filed Nov 4, 2013 · Acceleration, Engine · 40,000 miles · TX

My wife was driving in town and the car began to "buck" and slow down. After a few minutes the accelerator had no effect on the engine. It appeared to be idling only. She pulled off the road and stopped the car, waited a10 minutes or so, and started it again. There was no difficulty starting the car, but again the accelerator had no effect on the engine speed. We had the car towed to the local dealership where it was diagnosed with a bad throttle body and throttle motor. The repairs cost approximately $500.

Filed Oct 20, 2013 · Acceleration, Engine · 49,000 miles · OK

The vehicle started to stall when the accelerator peddle was engaged, after turning vehicle off and restarting it would travel approximately 50 to 100ft. Before again stalling.

Filed Oct 16, 2013 · Acceleration, Engine · 61,100 miles · MA

When driving at a slow speed of 20-25 MPH, the vehicle stopped accelerating and bucked a little. The wrench (powertrain) signal light up on the dash, so I proceeded to pull over, put the car in park, and shut it off. After a few minutes I turned it on again and all seemed fine, though the car was now slow moving and less smooth through shifting. The same thing occurred 9 days later, with the vehicle responding even more slowly afterwards.

Filed Oct 1, 2013 · Engine, Transmission · 95,000 miles · NC

I was driving along on the highway (I-77 n) and all of a sudden my car started to jerk. The wrench tool light lit up on the dash board and the car immediately began to loose speed. The change in power and speed was quick and I had to quickly check the surrounding traffic and pull the car over to avoid and accident. After pulling over to the side of the road I cut the car completely off and it started back up. I took the car to the dealer where I purchased the car and I was advised to replace the filter. I purchased a filter from ford and my car ran smoothly for about 2 weeks. I would push on the accelerator but it would not accelerate. Each time the wrench tool would appear and the engine light would come on. I have lost speed in the middle of an intersection. After my car started to cut off again following the installation of the new filter I took the car back to the dealer and was instructed to purchase throttle body spray. They cleaned out the throttle body and the car drove fine for a few days until I began experiencing the same problem. Some times I would have to cut my car off a few times and restart it on one round trip. I keep regular maintenance on this car, changing the oil and rotating the tires, etc. I purchased the car in december 2012 because the car I had over $2,500 of needed maintenance. I needed a reliable car to get around as the primary transportation for my family. I took the car back to the dealer a few times and they explained the code and explanation of the problem: trouble code p2111, throttle body actuator stuck open and closed. I really hope this investigation is expedited and that ford recalls the mercury mariner 2010 due to the faulty throttle bottle. I have had zero maintenance issues with my vehicle other than the throttle body issues.

Filed Sep 30, 2013 · Engine · 54,151 miles · IL

I was on a major expressway when the vehicle starting decreasing speed. I went from 55 MPH to 45 to 35 to 25 to 15 to 5 and the stopped. Luckily traffic was light and when this started, I pulled over to the shoulder of the road which was close to an exit. I somehow got the SUV home, starting the engine, it dying out and going a couple of feet over and over again. We took the vehicle to our auto ship and they said that ford had a problem with the throttle and gave us a north carolina consumers council article. They did not have the digital equipment to fix and referred us to ford dealership. Ford dealership advised it was the throttle. I talked to ford customer service and they advised there was no recall and there was nothing they could do.I we spent $362.56 on throttle and two letters later ford will do nothing since they say we do not have the extended warranty and we are beyond three years/36,000 miles. I was afraid when the car died out on the expressway.

Filed Sep 6, 2013 · Engine · 38,000 miles · AL

We were traveling down the highway at 60 MPH when the engine went dead like the switch was cut off. I tried to restart the engine and it would try to start then go dead. I did this 10 times and it finally started. I took it directly to the local ford dealer. A computer check did not show any problem. The dealer said he did not know what to work on and said to return it when it happens again.

Filed Sep 2, 2013 · Engine · 111,093 miles · MS

Vehicle loosing power and the check engine light comes on, u will have to shut vehicle off and re crank it.

Filed Aug 31, 2013 · Acceleration, Engine · 46,345 miles · TN

I was leaving a soccer game and the car went to about 40 mps and the wrench light came on and the pedal went limp. I pulled over and stopped the car and the car started shaking like it was out of time. I put it in part and shut off the car when I turned the car back on the light was off. I was able to drive 20 miles back and forth and then it did the same thing again. I have taken it to run the codes and there were none. Today 8/31/13 it did the same thing again and now finally the engine light came on. Codes were ran at autozone and p1212 throttle body sensor finally showed up. I had already checked the web the first time that it did it after talking with a mechanic that works at ford and he told me what it was and that there was no recall. I am very upset. I just purchased this car less than three months ago!!! Single mom someone help!!!

Filed Aug 29, 2013 · Engine · 74,600 miles · MI

On several occasions the vehicle would suddenly loose power from highway speeds and limp to the side of the road. A light would come on that looked like a wrench. Once the vehicle was stopped and restarted I was able to move on normally until the next episode which began to come more frequently. After the first incident I immediately went to my ford dealer and spoke to someone in service who told me they could hook the car up to the computer but since the wrench light went out it would most likely show nothing and I would have to pay $100 for this service. I have an extended warranty with a $100 deductible that was going to run out in 400 miles. I have the vehicle in right now and they just called and told me the throttle body needs to be replaced and it is not covered under the extended warranty and will cost me over $500.

Filed Aug 27, 2013 · Acceleration, Engine · 48,592 miles · NJ

Vehicle stalled 3 times and had no throttle response. Turn key off and restart vehicle to regain throttle response. Wrench light and engine light came on. Mechanic retrieved memory codes p2111 and p2112. *tr performed electronic throttle body test with ids. Throttle body failed and has a fault. Mechanic replaced throttle body

Filed Aug 26, 2013 · Acceleration, Engine · 34,100 miles · NY

While driving on several occasions the vehicle unexpectedly stalls with no prior warning. The third time I was traveling at approximately 60 MPH on the parkway. I have a second 2010 mariner which had exactly the same problem in august 2013. Both were repaired by the dealer by replacing a defective throttle body.

Filed Aug 26, 2013 · Acceleration, Engine · 35,215 miles · NY

While driving on three separate occasions the vehicle unexpectedly stalls with no prior warning. The third time I was traveling at approximately 60 MPH on the parkway. A dangerous condition to say the least. I have a second 2010 mariner which had exactly the same problem in january 2013. Both were repaired by the dealer by replacing a defective throttle body.

Filed Aug 21, 2013 · Acceleration, Electrical · 30,000 miles · CA

I had just gotten back from a long trip, and was stopped at a red light - I barely accelerated once it turned green, and the car lost complete and total power, in the middle of the intersection. A wrench light came on. No throttle was working as much as I pressed down. The car kept snail pacing until I got to an empty parking lot where I turned the vehicle off. I turned it back on and it revved itself, so I turned it back off. Turned it back on and all of a sudden it worked again. I took it to the dealer who claimed it was the "electronic throttle body" failing and charged me $98 for the diagnostic. I decided for a second opinion, and they took everything apart to see if it was something else since the car is only 3 years old and only has 30,000 miles on it. After much testing they concluded it was in fact the "electronic throttle body," and the repair cost me $595. Before this happened, 2 or 3 days prior, I felt the car was losing power and it was hard to get it to go at it's v6 potential. Car still hesitates and feels like the engine jumps out when it stops and moves again... Sure enough my engine mounts now need replacing, and that's anywhere between $350-$500. Another recall perhaps? It's been doing this since day 1, and my warranty ended about 6 months ago. Go figure... Just when 3 years was up! Sigh

Filed Aug 20, 2013 · Engine · 51,000 miles · TX

Tl* the contact owns a 2010 mercury mariner. The contact stated that while traveling various speeds, the vehicle suddenly stalled. The vehicle was moved to the shoulder and restarted. The vehicle was not repaired. The manufacturer was not contacted about the failure. The failure mileage was 51,000.

Filed Aug 12, 2013 · Engine, Transmission · 32,000 miles · TX

Driving at approx 40 MPH car engine reacts abnormally and "wrench" warning light appears and car "stalls" out and, although fully operational will not drive. Turn the car off and back on and the engine eventually will turn over but again repeats the same issue of "stalling" out. After having the car towed, the diagnosis is a defective "throttle-body".

Filed Jul 30, 2013 · Acceleration, Engine · 56,000 miles · IL

My husband was driving the car at 65 MPH on the highway and the care went limp and would not accelerate. He had to pull over to the side and restart the car. This happened to him 3 times and me one time. I took it to a dealership and it is the throttle body. You have received several complaints and there is an ongoing investigation. In addition, the dealership was going to overcharge me for the repair. Please do everything in your power to get ford to recall this party and reimburse the customer before there is a fatality.

Filed Jul 27, 2013 · Acceleration, Engine · 64,500 miles · OH

I have no throttle response, engine RPM drop back to an idle, engine runs rough and stalls. No power. Moving to the side of the road, turn engine off and restart and will runs fine, but today this problem recurred every 4 miles. I was only 22 miles from home but that is a lot of stopping along side of the road.

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