One problem related to engine stall has been reported for the 2011 Mercury Mariner. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2011 Mercury Mariner based on all problems reported for the 2011 Mariner.
The vehicle has quit running suddenly without warning at highway speed two times and has quit running at low speed or at stop lights or has went to rough idle in limp home mode with no power available to avoid heavy traffic. Turning off ignition and waiting 3 minutes and restarting yields normal engine operation until it stalls again. Ford service has diagnosed defective throttle body but will not warranty the defective part even though it is covered under emissions controls.