Four problems related to engine stall have been reported for the 2009 Mercury Mariner. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2009 Mercury Mariner based on all problems reported for the 2009 Mariner.
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.
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 occassions 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.
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.
Engine stalls and pick-up is wobbly.