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2009 Mercury Mariner fuel system complaints

Page 2 of 2: complaints 11 to 30 of 30, newest first, as owners wrote them.

See the summary of 2009 Mercury Mariner fuel system problems: which part fails, at what mileage and related recalls.

Filed Jan 2, 2014 · Acceleration, Fuel system · 70,000 miles · NY

Car engine stopped while driving at a low (10-20 MPH) speed. Second time this happened. First time on 2011 replaced throttle body then. It happened again 12/31/2013. Ford service said throttle body needs to be replaced again.

Filed Dec 27, 2013 · Acceleration, Fuel system · 94,000 miles · FL

While driving the mariner at 45 MPH on a busy street, the engine went into limp mode, lost all acceleration and slowed to 5 MPH. I was nearly rear-ended by the truck behind me and was forced to pull up onto a sidewalk, damaging my tire. Pulled the codes on the car and got a p111 code. Did some searching on the internet and found that this is a common issue and an extreme safety hazard. I was very happy that I was the driver, and not my 16 year old daughter!!! This is the second safety issue we have had with this car in the last month -- earlier the power steering went out, again without any warning in traffic.

Filed Nov 1, 2013 · Acceleration, Fuel system · 71,000 miles · NC

During normal highway driving conditions, car suddenly stopped accelerating, could push the accelerator all the way to the floor and get no power. Engine did not stall out, but would not provide power. Was able to pull over and turn off car, then turn back on, and problem was gone. After another 15 miles or so it happened again. Took the car to the dealership and they reported that it was a bad throttle body and had to be replaced.

Filed Sep 19, 2013 · Fuel system · 60,000 miles · AL

Driving 30mph car begins to surge and slow down had to pull over to road shoulder. Fuel gauge shows empty when there is a full tank. Cut the engine off for five minutes, start engine tried to drive the car is still surging and slowing down, then starts to run normally. This is the second occurrence the first occurred in march of 2013.

Filed Sep 18, 2013 · Engine, Fuel system · 74,000 miles · CA

The vehicle has stalled while in motion 6 times now, while stopped 3 times. Stalled once while driving upwards of 40 MPH. I had to stop in the middle of the street, put emergency blinkers on, and restart the car. Vehicle seems to spontaneously falter in acceleration and loses power. Turning off ignition and restarting engine fixes the problem but it will then reoccur at an unknown time. Some incidences have been in the same day, others have been up to a week apart.

Filed Sep 5, 2013 · Acceleration, Fuel system · 101,000 miles · IN

While driving approximately 35 MPH, the vehicle lost all throttle. The engine continued to run. Pulled over and placed the vehicle in park. Pressed on accelerator but nothing happened. It would not rev the engine. Restarted the vehicle and the throttle worked properly. This happened twice today.

Filed Aug 27, 2013 · Engine, Fuel system · 59,500 miles · PA

This actually first occurred on friday. I was traveling on the thruway at about 65mph when the car felt almost like it downshifted and then I totally lost acceleration and the wrench light appeared on the dash. I limped to the side of the road and the car jerked and sputtered before I shut it off. After a few minutes I restarted the vehicle and it sounded like it was flooded at first then it turned over normally. I was an hour from home and made it back without further incident. I took it to the dealer the next morning and it did not show any codes. They suggested I replace the purge valve, and as I had a busy week of work related travel scheduled I went ahead and had them do it for $120. Better safe than sorry. Right? Today I get an hour from home and it happens again. I call my dealer and they suggest I find the closest ford dealer and take it there immediately. Closest ford dealer couldn't take me for 2 weeks!! I was an hour from my destination, so I decided to chance it. I drove about 20 minutes and it happened again. Same exact scenario. I started it again, got back on the road and drove 10 minutes and again, except this time the engine light also came on. I called roadside assistance and was towed to a garage. I am 2 1/2 hours from home and driving a rental. Garage will diagnose and hopefully fix tomorrow. Service tech said if he had to diagnose without a code he would say throttle body! It also sounds like this is not covered by my 5 year/60k warranty either. With all of the similar stories I have read online ford needs to be forced to do a recall and reimburse us all for our expenses.

Filed Aug 27, 2013 · Engine, Fuel system · 90,000 miles · NC

2009 mercury mariner with about 90,000 miles. Was on the freeway driving about 65-70 MPH when suddenly the power to car cut off - was not able to accelerate vehicle; drove to right side of the road. Car was still on, but gas pedal would not work, wrench light was on, car idling very roughly. Turned car off. Turned car back on, wrench light was off, drove another 30 minutes to destination without incident. In the two hour drive home, the car cut off five more times. I heard a bell alert audio sound a few times, but the only light that came on was the wrench just as the power cut off. The very last time it happened, the engine light came on, and stayed on even after restarting the car. I feel very thankful to have got home alive and without getting into an accident. Dealer recommends a 90m service package ($547), a diagnostic test ($104), and possibly a throttle body and/or sensor ($300-ish).

Filed Aug 23, 2013 · Acceleration, Fuel system · 65,000 miles · WA

Recently purchased 2009 mercury mariner (ford escape) has three times simply quit while driving at low speed and the throttle is gently pressed. Latest incident was while traveling uphill with two grandchildren and a 18 wheel truck on the back bumper. Luckily my wife had the presence of mind to shift to neutral, re-start the engine, and accelerate away from the truck. No error codes have been set during these three events.

Filed Aug 8, 2013 · Acceleration, Fuel system · 45,300 miles · PA

Driving along and unexpectedly engine goes in limp mode with no warning and no acceleration- extremely dangerous as was driving on expressway when this occurred.

Filed Jul 31, 2013 · Acceleration, Fuel system · 54,000 miles · TX

Driving at highway speeds when the vehicle lost all power. Was able to the vehicles momentum to pull to the side of the highway. After turning the car off, waiting, restarting the vehicle, I was able to restore power to the engine to return home. Turning left through cross traffic, the vehicle lost power again. Was able to quickly turn the vehicle off then on again to restore power and move out of the way of oncoming traffic. The dealer diagnosed and replaced the throttle body for being defective. The vehicle is no longer under warranty and I was required to pay. This is the second time this problem has happened. 1.5 years ago the same problem happened and the throttle body was replaced under warranty.

Filed Jul 29, 2013 · Fuel system · 92,000 miles · OH

On june 11th, 2013, I was turning a corner and my vehicle was not allow me to accelerate. I was able to pull over to the side of the road and turn the vehicle off. I sat with the vehicle off for about five minutes and was able to start it back up. I then drove a few feet, and it stalled again. I then turned it back off and let it sit for a few more minutes, in which I was able to restart it and drive home. He same problem has occurred at least 5-10 more times since then. Since then I have had the throttle body cleaned, put the issue still exist. The most recent occurrence was this morning at 10: 30 am. I contacted after-market auto part stores and they do not carry a throttle position sensor. I contacted the local ford dealership and they told me that the part was on back order and it would take some time to get the part in.

Filed Jul 27, 2013 · Acceleration, Engine · 35,400 miles · SC

Was driving down country road and all of a sudden felt then engine what I thought was kick out of gear. Had no acceleration at all. Pulled off road and the vehicle was running in a rough idle, but still could not give it gas. Once placed in park the idle leveled out and still no acceleration. The wrench symbol was on. I stopped the engine and waited 10 minutes then restarted engine and everything was ok. For about 3 months. I took into the ford dealer only to be told there was no code and they could do nothing without it. Problem has gotten steadily worst. And now it is at point where wife can not drive her car! I am driving it and finally yesterday the engine light came on. I ran it to autozone where they confirmed the dreaded p2112 code. I took it to the ford dealer today figuring alright less than 5 years old and 42,000 miles I would finally get it fixed. No go! Although for $106 they did confirm what autozone already told me that the throttle-body was shot and would cost another $430 to fix.I promptly called ford customer care line and was told that they would contact the service manager at my ford dealership to work out a payment plan for me to get it fixed still at my cost. This is crazy that I payed over 26,000 for a vehicle that I still owe 11,000 on and under 5 years old with 42,000 miles and this is my 3rd major problem with it.. Have already had the engine pulled apart once to be fixed and one of the drive shafts had to be fully replaced. This is unfortunate but will be the last ford I ever own!!!

Filed Jul 10, 2013 · Acceleration, Engine · 111,000 miles · IN

2009 mercury mariner engine stalls, surges then no acceleration. Coast to side of road, while trying to not get rear-ended. Engine still runs, is extremely rough. After turning the ignition off, then wait and restart, runs okay. This has happened on many occasions in past month and half. I contacted ford dealer and service guy says it is most likely the throttle body starting @ $500 repair not covered under the warranty. Happens at any speed. From start or just while driving. First incident 5-31-2013.

Filed Jun 5, 2013 · Acceleration, Engine · 46,000 miles · FL

When being aggressive with the accelerator the engine stalls and the accelerator stops working forcing the driver to pull off of the road. When bring the car to a stop it jerks forward until it is put into park, still the accelerator does not work no matter how pushed. After turning it off start up takes longer than usual and either the little wrench or the engine symbol appears. After taking it to a mechanic it is diagnosed that is has a bad electronic throttle and it will have to be replace. Prior to this there has not had an accident, instance or work done that would cause this.

Filed Jun 4, 2013 · Engine, Fuel system · 29,000 miles · FL

I was leaving work and driving down a road at about 50mph when all of a sudden my car jumped and I then was coming up to a red light so I was braking and behind a car. At the red light I was a few inches from hitting the car because my car kept jumping forward. I then got scared and turned my car off and back on and it was driving fine. Then all of a sudden it did the same thing and I couldn't accelerate I would press on the gas and my car was just shaking and losing speed and wouldn't move. Thankfully I didn't drive the highway home that day.

Filed Mar 20, 2013 · Engine, Fuel system · 35,000 miles · IN

While entering interstate highway, engine balked like bad gas. After two or three tankfuls and the vehicle dying in traffic, I left it with my dealer to find the problem. After a week, the vehicle had not died for them so I brought it home, only to continue with the same dying and hesitating when accelerated. A month or so later the dealer kept it again for about 5 days and it still did okay for them. They have no idea what the "problem" is. We have parked the car in our garage because several times we have narrowly escaped being rear-ended, when turning corners, crossing railroad tracks, etc. I contacted ford motor co. In michigan and they do not "have this problem with other vehicles" and don't seem to know what I'm talking about. Mechanics in two other garages have driven the vehicle and have not located the problem. Help!!

Filed Feb 26, 2013 · Fuel system, Transmission · 80,500 miles · IL

I was driving through a town and the car cut out and lost all power. I steered it off the road safety. It restarted just fine and I took off again going four blocks were it died instantly in the middle of the road. It is now in the shop to figure out what caused stalling in the car, and then allowing it to restart and continue down the road. Very unsafe with traffic behind me and oncoming to be stalled on a curve on the road.

Filed Feb 26, 2013 · Fuel system, Transmission · 99,000 miles · WA

As my daughter was driving on the freeway, the engine suddenly lost power and she had to work her way to the side across 3 lanes of heavy traffic with no power. Our mechanic replaced the throttle body at our expense. The news today indicated that you were investigating the circuit board which controls the throttle and we wanted you to know that this problem was a threat to her safety and appears to be occurring to many people. This was the fourth time the vehicle has stopped while driving.

Filed Nov 10, 2009 · Fuel system · 8,800 miles · AZ

Ford motor co. Produced 2009 & 2010 mercury mariner vehicles' fuel system leaks gas when attempting to top off the gas tank. All ford vehicles produced over the past two years may be affected. Ford will not fix the problem and tells the customer to not top off the gas tank although nothing is included in the owner's manual about this nor are dealerships admitting any knowledge about the problem nor has ford sent any service bulletins to affected dealerships. All of the above has been confirmed on at least two occasions by my servicing ford dealership.

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