Engine Shut Off Without Warning Problems of Mercury Mariner Hybrid

Mercury Mariner Hybrid owners have reported 6 problems related to engine shut off without warning (under the engine and engine cooling category). The most recently reported issues are listed below. Also please check out the statistics and reliability analysis of Mercury Mariner Hybrid based on all problems reported for the Mariner Hybrid.

1 Engine Shut Off Without Warning problem of the 2006 Mercury Mariner Hybrid

Failure Date: 11/09/2018

I was driving my 2006 Mercury Mariner Hybrid down the road going approximately 35-40 mph. The vehicle shut off and the dash read stop safely now. I could still steer and brake. It would not restart right away. I tried restarting in about a half an hour and it started. I then drove for approximately 100 yards and the vehicle shut off again and the same dash reading . I finally after several attempts to getbackhomewiththishappeningaboutevery100yards. Campaign number: 14v526000 component(s): hybrid propulsion system potential number of units affected: 70,209 all products associated with this recall vehicle make model model year(s) Ford escape 2005-2008 Mercury mariner 2006-2008detailsmanufacturer: Ford motor companysummary:Ford motor company (Ford) is recalling certain model year 2005-2008 Ford escape hybrid electric vehicles manufactured October 13, 2003, to June 20, 2008, and 2006-2008 Mercury Mariner Hybrid electric vehicles manufactured June 10, 2005, to June 20, 2008. The coolant pump for the hybrid system may fail resulting in the hybrid electronics overheating. Consequence:if the hybrid electronics system overheats, it may shut down the powertrain, resulting in a stall-like condition, increasing the risk of a crash. Remedy:Ford will notify owners, and dealers will inspect and replace the original motor electronics coolant (mec) pump with an improved brushless pump, free of charge. The recall is expected to begin on October 27, 2014. Owners may contact Ford customer service at 1-866-436-7332. Ford's number forthisrecallis14s19. . Read more...

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2 Engine Shut Off Without Warning problem of the 2006 Mercury Mariner Hybrid

Failure Date: 11/09/2018

I was driving the vehicle and all of the sudden engine shuts down and dash reads pull over safely now. It would not start back up right away. I tried starting it about a half hour later and it started. I drove maybe 100 yards and the vehicle did the same thing. I finally got it to our driveway and it shut off again. It continues to do the same thing. Even when not driving it.

3 Engine Shut Off Without Warning problem of the 2006 Mercury Mariner Hybrid

Failure Date: 06/08/2015

I was driving down the street, and suddenly, the "stop safely" light came. The engine shut off and the temperature light came on in the dash. I was able to get my car started after about 30-45 seconds. I started driving again, but it shut down again a couple minutes later. It has been occurring intermittently since that day, with today being the most recent. I called Ford motors today and was informed that my car is on the recall list. They never sent a letter to me. The representative referred me to the closest dealership in my area, and advised me that any repairs will be free of charge. I don't understand why Ford motors would program this vehicle to completely shut down during travel. God forbid if this happens while driving on a highway. This is a very dangerous so called "safety feature", which needs to be discontinued in the future.

4 Engine Shut Off Without Warning problem of the 2008 Mercury Mariner Hybrid

Failure Date: 08/06/2014

Engine shuts off and display says to pull off road. This has been a on going problem. The dealer replaced the throttle body and it still happens. It is very unsafe to lose your vehicle's acceleration and have the engine turn off. I think it may be a computer code glitch because based on what I was told by the dealer the engine shuts off because a fuel mixture issue detect that may even be a false reading. This automated action within the vehicle brain decision puts many at risk as I found out when I was in the furthest left lane about a mile before the 55 freeway turn off while traveling south on the 91 freeway with the car shut off it's engine. I lost power and needed to pull over while a car behind me was flashing their headlights and the car to my right was slowly passing me up. Next came a bigger challenge since there were 2 big rigs on the road and I hit the brakes a little while signalling a lane change with my flashers on I managed to squeeze between the two rigs and almost caused the one behind me to rear end me. The big rig in turn caused the car behind to break and this almost lead to a pile up. That intersection on the freeway where the 55 freeway begins on your left lanes and the 91 freeways continues on the right is a very dangerous place to have to negotiate a pull over. It is compounded with a entry ramp with cars trying to quickly get into the left 2 lanes in order to get onto the 55 freeway. I do not see a reason to have your vehicle turn itself of for any reason other than a fire or a very serious safely issue. Based on what I know the computer of my vehicle puts people in danger over a possible issue with the smog pollution being too excessive for the moment.

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5 Engine Shut Off Without Warning problem of the 2008 Mercury Mariner Hybrid

Failure Date: 08/03/2014

While driving the vehicle shuts off with a red triangle and the display says to pull off safely. This has happened about 6 times already. I have taken it back to the Ford dealer and they replaced the throttle body because there is a sensor that fails in the unit and they explained the factory calibrates the whole unit with a steep price tag. Lucky I still have 5000 miles till warranty expires. I guess a number of times it was not a big deal to pull over on the shoulder and restart the vehicle and carry on. This last time we had service done to the vehicle I informed the Ford service agent that we were going on a long trip and if we should get a rental. He was confident the work they preformed would resolve the shut down issue. We left la and went on our way to bishop for a group hiking trip. The mariner ran fine for 3/4 of the way and again while driving on a 2 lane road the mariner shuts off. I negotiated to the right as my speed was declining and a 18 wheeler was passing me up on the right and the car behind me was gaining on my rear. It was a bit scary but we managed to pull over safely. Upon turning off the mariner ignition and restarting we carried on to the destination. It was raining and a road conditions were not the best but we did not want to be stranded on the side of the road. Once again after driving for 10 minutes the mariner shut off and with the loss of power. Not a safe situation to have your engine shut off while driving in a freeway at speed of 65 and to suddenly loss your engine with no ability to accelerate out of a unsafe situation. It could be very dangerous if we were traveling on a windy single lane road without a shoulder as there are a bunch in the higher elevations where we hike. It would not be safe to stop and deal with this situation as cars are coming up a hill and your trying to reset the ignition computer system.

6 Engine Shut Off Without Warning problem of the 2008 Mercury Mariner Hybrid

Failure Date: 07/05/2009

The car shuts off without warning on the highway at speed causing fear, danger and a potential for disaster. Still doing this most recent incident was June 25, 2014. Ford refuses to do anything about this reoccuring problem I have, as do may other owners of Ford hybrid vehicles.


Other Common Engine And Engine Cooling related problems of Mercury Mariner Hybrid



Fuel Economy of Mariner Hybrid Vehicles
Mariner Hybrid Service Bulletins
Mariner Hybrid Defect Investigations