2009 Mercury Mariner: engine stalls while driving

Filed Jan 6, 2025 · Steering · 233,812 miles · SC

The contact owns a 2009 Mercury Mariner. The contact stated while attempting to drive out of the driveway, the vehicle stalled and lost power. The contact stated that several unknown warning lights were illuminated. The vehicle was then driven to an independent mechanic to be diagnosed. The vehicle was diagnosed with electric power steering failure. The local dealer was contacted; however, the vehicle was not repaired. The contact stated that the failure persisted. The manufacturer was made aware of the failure. The failure mileage was approximately 233,812.

Filed Jan 5, 2019 · Fuel system, Steering · 105,000 miles · PA

On october 18, 2018 I received the power steering assist failure error on my instrument panel when turning on my vehicle. I had driven it earlier in the day without issue. Previously I had the occasional warning noise and quick flash of an error (too quick for me to read all the way) and would have momentary difficulty turning. This issue makes it almost impossible to steer the vehicle. Research indicates that it is most likely a malfunctioning torque sensor. I reached out to ford after learning of recalls for the 2009 model year. I was informed that my VIN was not included in the recall. Ford was unwilling to assist with the cost of repairs in any way. Their suggestion was to keep the receipt on the slim chance that the recall would be expanded. This is unacceptable. Had I been on a highway when this occurred it could have been fatal to myself or others. This repair will cost in the neighborhood of $1000 or more. I will need to have the work done at a dealership to ensure the repair is done correctly and that ford won't give me reimbursement issues should the recall be expanded. This occurred less than a year after the fuel inlet valve failed on the vehicle, causing it to shut down while driving and rendering it unable to be started. The rear hatch has not been able to be opened for over three years because of an issue with the latch. I have had issues with the climate control system and well. There were issues with air conditioning when I purchased the vehicle (april 2015). The issues were not apparent previous to purchase because of the weather at the time. Within a month the weather warmed up. When I attempted to use the A/C it was only blowing hot air. The dealership was willing to fix the issue free of charge because of the circumstances. However, the issue is occurring again even after having an A/C recharge performed.

Filed Oct 21, 2017 · Engine · 98,575 miles · NJ

Mercury mariner (2009) v6 4wd. Has stalled twice. 1. While driving at 35 MPH. It stalled and was able to restart once the vehicle stopped on the side of the road. We took it to a ford dealer and the throttle body was replaced. 2. Stalled when slowing to a stop. This was after the throttle body was replaced on 10/13/2017. Only driven about 500 miles. Both times vehicle was going down a country road.

Filed May 23, 2017 · Driver assistance, Electrical · 165,228 miles · FL

While in motion the car will stall causing me to pull off to the side of the road, turn the car off, then back on in order for it to work again. This happens every 10-15 miles and its really unsafe! I believe it is a defective throttle body and needs to be fixed asap before I can continue driving it.

Filed Dec 3, 2016 · Engine · NJ

My truck stalls. I purchased a new battery, and it continues to stall while driving or idling.

Filed Apr 21, 2016 · Acceleration, Engine · 70,000 miles · NJ

My 2009 mercury mariner stalls while its idle, at a intersection or just waiting. It stalls then I started up right after it stalls.

Filed Dec 3, 2015 · Engine, Transmission · 100,000 miles · FL

While driving down the road anywhere from 20-55 MPH, the car seems to stall out and the accelerator no longer works. You have to pull over and shut the vehicle off and it will start again. Sometimes the same problem will occur again within seconds, minutes, or days later.

Filed Jul 15, 2015 · Engine · 79,000 miles · AL

Tl* the contact owns a 2009 mercury mariner. While driving approximately 55 MPH, the vehicle began to shutter, the engine stalled, and the service sensor light illuminated. Five minutes later, the engine was restarted and the failure recurred after approximately fifteen minutes. The failure occurred on multiple occasions. The cause of the failure was not diagnosed. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 79,000.

Filed Jun 22, 2015 · Electrical, Engine · 118,000 miles · OH

Tl* the contact owns a 2009 mercury mariner. While driving on an incline at an unknown speed, the vehicle suddenly decelerated and would not accelerate when the accelerator pedal was pressed. The service engine light illuminated prior to the failure. The vehicle stalled and was able to be restarted. The vehicle was taken to an independent mechanic where it was diagnosed that the electronic throttle control failed. The vehicle was not repaired. The manufacturer was not notified. The VIN was unavailable. The failure mileage was 118,000.

Filed Mar 3, 2015 · Electrical · 87,000 miles · NJ

Tl*the contact owns a 2009 mercury mariner. The contact stated that while driving approximately 10 MPH the oil and battery warning indicators illuminated and the vehicle stalled. The vehicle restarted but the failure recurred on 2 other occasions. The vehicle was not taken to the dealer. The manufacturer was not made aware of the failure. Also, the contact stated that the vehicle would not start after the anti theft device warning indicator intermittently illuminated. The vehicle was not taken to the dealer. The manufacturer was made aware of the failure and advised the contact to have the vehicle towed to the dealer to have the computer reprogrammed. The approximate failure mileage was 87,000. Updated 4/21/15

Filed Dec 28, 2013 · Acceleration, Engine · 60,000 miles · OH

When pulling up to a stop sign the car just stopped next time coming off interstate to stop the vehicle kinda of lunged the next tine it just tried to stall had to put in neutral and keep foot on gas to keep it running.

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.