60 of the 422 complaints about the 2009 Mercury Mariner are about the engine — 14% of everything reported for this model year. Half of the failures with a mileage on record happened before 69,000 miles.
60
Complaints
0
Crashes
0
Fires
0
Injuries
Filed with NHTSA, in their own words.
ENGINE
MY 2009 MERCURY MARINER (HAS 56,000 MILES), WITHOUT ANY WARNING, IT JUST SHUT OFF WHILE I WAS DRIVING IT. HAS HAPPENED TWICE. WAS ABLE TO GET THE SIDE OF THE ROAD AND WAS ABLE TO RESTART IT. NO WARNING LIGHTS CAME ON AT ALL. CAR IS AT DEALERSHIP NOW TO HAVE IT CHECKED OUT.
NHTSA complaint #11228654 — an unverified report by a vehicle owner.
ENGINE
VEHICLE RANDOMLY AND SUDDENLY LOSES POWER ON HIGHWAY. DASHBOARD LIGHTS UP, HAVE TO PULL OFF ROAD TURN OFF AND WAIT A SHORT TIME THEN RESUMES NORMALLY. POSSIBLY THROTTLE BODY PROBLEM.
NHTSA complaint #11155275 — an unverified report by a vehicle owner.
ENGINE
WHILE TRAVELING APPROXIMATELY 35 MPH, DRIVING IN A STRAIGHT LINE ON A CITY STREET IN TRAFFIC, THE ABS ABRUPTLY APPLIED THE BRAKES - HARD! THE ABS LIGHT CAME ON AND A "CHECK BRAKE SYSTEM" WARNING MESSAGE WAS DISPLAYED. ALSO, THE ELECTRICAL SYSTEM SHUT DOWN AND THE ENGINE LOST POWER. AFTER ABOUT 5 SECONDS, POWER WAS RESTORED AND VEHICLE WAS ABLE TO PROCEED. THIS OCCURRED APPROXIMATELY 8 TIMES OVER A TWO MILE DISTANCE. DURING THE LAST 4 TIMES, THE ENGINE DIED, LOST POWER COMPLETELY, AND NEEDED TO BE TURNED OFF AND RESTARTED TO CONTINUE. THIS FAILURE WAS A DANGEROUS SAFETY HAZARD. VEHICLE WAS TOWED TO ALBUQUERQUE LINCOLN VOLVO. THE PROBLEM WAS DIAGNOSED AS A FAILED ABS MODULE, 9L8Z. THE DEALER REPLACED THE ABS MODULE WITH A FAULTLY MODULE. A SECOND ABS MODULE WAS INSTALLED AND THE VEHICLE WAS DEEMED REPAIRED. THE DEALER DID NOT RETURN THE DEFECTIVE PART FOR ANALYSIS.
NHTSA complaint #11153972 — an unverified report by a vehicle owner.
ENGINE
TOOL LIGHT COMES ON AND CAR LOSES POWER IN TRAFFIC, VERY, VERY DANGEROUS. DEALERSHIP UPDATED WITH COMPUTER BUT VEHICLE IS STILL DOING IT. PLEASE DO A RECALL FORD.
NHTSA complaint #11073494 — an unverified report by a vehicle owner.
ENGINE
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.
NHTSA complaint #11035442 — an unverified report by a vehicle owner.
ENGINE
MY TRUCK STALLS. I PURCHASED A NEW BATTERY, AND IT CONTINUES TO STALL WHILE DRIVING OR IDLING.
NHTSA complaint #10929723 — an unverified report by a vehicle owner.
ENGINE
TEST DRIVING VEHICLE AND I COULD NOT ACCELERATE. DEALER SAID HE WOULD FIX PROBLEM.
NHTSA complaint #10861588 — an unverified report by a vehicle owner.
ENGINE
MY 2009 MERCURY MARINER STALLS WHILE ITS IDLE, AT A INTERSECTION OR JUST WAITING. IT STALLS THEN I STARTED UP RIGHT AFTER IT STALLS.
NHTSA complaint #10860835 — an unverified report by a vehicle owner.
ENGINE
TL* THE CONTACT OWNS A 2009 MERCURY MARINER. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 25 MPH, THE VEHICLE HESITATED AND LUNGED FORWARD AS THE ENGINE WARNING INDICATOR ILLUMINATED. THE CONTACT POWERED THE VEHICLE OFF AND BACK ON AND DROVE THE VEHICLE WITHOUT INCIDENT, HOWEVER, THE FAILURE RECURRED APPROXIMATELY TWO WEEKS LATER. THE CONTACT POWERED THE VEHICLE OFF AND BACK ON, HOWEVER, THE VEHICLE FAILED TO ACCELERATE. THE VEHICLE WAS TOWED TO AN INDEPENDENT MECHANIC AND WAS DIAGNOSED THAT THE THROTTLE ACTUATOR NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 89,000.
NHTSA complaint #10824773 — an unverified report by a vehicle owner.
ENGINE
TL* THE CONTACT OWNS A 2009 MERCURY MARINER. THE CONTACT STATED THAT WHILE AT AN INTERSECTION MAKING A LEFT TURN, THE POWER STEERING FAILED. THE CHECK ENGINE WARNING LIGHT ILLUMINATED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 125,000. THE VIN WAS NOT AVAILABLE.
NHTSA complaint #10823834 — an unverified report by a vehicle owner.
ENGINE
ON 1/1/2016 I WAS DRIVING ON 495 W IN QUEENS, NY HEADING BACK TO MANHATTAN WHERE I LIVE. OUT OF NOWHERE THE CAR BEGAN JERKING, A WRENCH LIGHT ON THE DASH PANEL CAME ON (WHICH I NEVER SAW BEFORE) AND I COULD TELL THE CAR WAS DECELERATING. I TRIED HITTING THE ACCELERATOR AGAIN, THE CAR WOULD JERK, THE ENGINE WAS REVVING BUT WAS BARELY MOVING. I KNEW I HAD TO PULL OVER AND LUCKILY I WAS ABLE TO NAVIGATE TO THE SHOULDER OF THE ROAD. THIS WAS AN EXTREMELY DANGEROUS SITUATION. I AM A CONFIDENT DRIVER, HOWEVER, A LESS CONFIDENT OR TIMID DRIVER MOST LIKELY WOULD HAVE PANICKED AND GOTTEN INTO A POTENTIALLY SERIOUS COLLISION.
NHTSA complaint #10818297 — an unverified report by a vehicle owner.
ENGINE
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.
NHTSA complaint #10808197 — an unverified report by a vehicle owner.
ENGINE
TL* THE CONTACT OWNS A 2009 MERCURY MARINER. THE CONTACT STATED THAT WHILE DRIVING AT 45 MPH, THE THROTTLE BODY FAILED AND THERE WAS A SUDDEN LOSS OF ACCELERATION. THE CONTACT APPLIED FORCE TO THE ACCELERATOR PEDAL AND IT DID NOT RESPOND. THE CONTACT WAS NOT INCLUDED IN NHTSA ACTION NUMBER: PE13003 (ENGINE). THE VEHICLE WAS TAKEN TO THE DEALER BUT WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 61,000.
NHTSA complaint #10747401 — an unverified report by a vehicle owner.
ENGINE
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.
NHTSA complaint #10734257 — an unverified report by a vehicle owner.
ENGINE
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.
NHTSA complaint #10726682 — an unverified report by a vehicle owner.
ENGINE
POWER OF VEHICLE DRASTICALLY DECREASED WHILE DRIVING DOWN SECONDARY ROAD. HAD JUST ENOUGH POWER TO PULL OVER TO SIDE OF THE ROAD. PUSHED DOWN ACCELERATOR IN PARK AND NEUTRAL BUT NO POWER. TURNED OFF. RESTARTED AND RESUMED NORMAL DRIVING. SUSPECT ELECTRONIC THROTTLE BODY. THE FORD DEALERSHIP WILL NOT REPLACE WITHOUT A DIAGNOSTIC FEE BECAUSE THEY STATE IT IS NOT A RECALL, ALTHOUGH AN INTERNAL VEHICLE HEALTH REPORT STATES "THERE ARE RECALLS FOR YOUR 2009 MERCURY MARINER AT THIS TIME" NOTICE # 13N03 ELECTRONIC THROTTLE BODY EXTENDED COVERAGE I BELIEVE USING THE WORD RECALL CONSTITUTES MISREPRESENTATION WHEN IN FACT FORD MOTOR COMPANY STATES IT IS JUST A CUSTOMER SATISFACTION PROGRAM TO ALLEVIATE THEM FROM COSTS AND ANY WRONG DOING. IT IS A VERY DANGEROUS SAFETY CONCERN.
NHTSA complaint #10726171 — an unverified report by a vehicle owner.
ENGINE
CHECK ENGINE LIGHT CAME ON WHILE DRIVING 55 MPH ON THE FREEWAY ON 8/11/14. NO SIGNS OF MALFUNCTION INITIALLY. LATER THE CHECK ENGINE LIGHT WENT OFF ON 8/13/14. TOOK MARINER TO FIRESTONE AUTO CARE TO DIAGNOSE CHECK ENGINE LIGHT. THEY TOLD ME IT WAS P0022 - VCT SOLENOIDS, BUT THE ENGINE WAS STILL RUNNING FINE. THEY RESET THE COMPUTER AND TOLD ME THE NEXT TIME THE CHECK ENGINE LIGHT COMES ON TO TAKE IT INTO A DEALERSHIP. SO THE CHECK ENGINE LIGHT COMES BACK ON BY 8/17/14. STARTED NOTICING SHUTTERING BETWEEN 50-60 MPH ON 8/22/14. TOOK CAR INTO DEALERSHIP ON 8/27/14. WAS TOLD THAT THE VCT SOLENOIDS NEEDED TO BE REPLACED AT APPROX. $620 AND THIS CAR ONLY HAS 29K MILES ON IT AND OF COURSE IS OUT OF WARRANTY. THERE IS A SERVICE BULLETIN ON REPLACING THE VCT SOLENOIDS BUT OF COURSE NO RECALL HAS BEEN ISSUED. A RECALL SHOULD BE ISSUED AND I SHOULD RECEIVE REIMBURSEMENT FOR THIS REPAIR FOR SOMETHING THAT IS OBVIOUSLY A WIDESPREAD PROBLEM WITH MARINERS AND ESCAPES FROM 2009-2011.
NHTSA complaint #10628887 — an unverified report by a vehicle owner.
ENGINE
TL* THE CONTACT OWNS A 2009 MERCURY MARINER. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 70 MPH, THE VEHICLE DECREASED IN SPEED TO 20 MPH INDEPENDENTLY WITHOUT WARNING. THE VEHICLE WAS ABLE TO RESTART. THE VEHICLE WAS TAKEN TO A DEALER FOR DIAGNOSTIC TESTING AND THE THROTTLE BODY WAS REPLACED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 72,000.
NHTSA complaint #10618731 — an unverified report by a vehicle owner.
ENGINE AND ENGINE COOLING
CAR SUDDENLY WENT INTO LIMP HOME MODE.
NHTSA complaint #10617987 — an unverified report by a vehicle owner.
ENGINE
I WAS DRIVING AT 45MPH WHEN ALL OF A SUDDEN, THE CAR STOP RUNNING. I HAD TO PULL OVER AND CUT THE CAR OFF. I STARTED THE CAR AGAIN AND IT WENT ABOUT ONE MILE BEFORE IT CUT OFF AGAIN. THEN A WRENCH SYMBOL CAME ON THE LEFT SIDE DASH BOARD. I DROVE THE CAR HOME AND IT CUT OFF ON ME THREE TIMES BEFORE I COULD GET IT HOME. I LOOK IN MY CAR BOOK TO SEE WHAT THE WRENCH SYMBOL MEANS AND IT SAYS THAT IT IS THE THROTTLE CONTROL/POWERTRAIN.
NHTSA complaint #10611341 — an unverified report by a vehicle owner.
ENGINE
TL* THE CONTACT OWNS A 2009 MERCURY MARINER. THE CONTACT STATED THAT WHILE DRIVING 70 MPH, THERE WAS A SUDDEN LOSS OF ENGINE POWER WITHOUT WARNING. THE VEHICLE WAS TOWED TO A DEALER WHERE IT WAS DIAGNOSED THAT THE THROTTLE BODY NEEDED TO BE REPLACED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE VEHICLE WAS REPAIRED. THE APPROXIMATE FAILURE AND CURRENT MILEAGE WAS 50,000.
NHTSA complaint #10595030 — an unverified report by a vehicle owner.
ENGINE
WHILE DRIVING THE AUTO JUST STOPPED AND THE CHECK ENGINE LIGHT CAME ON AND STAYED ON. I TURNED THE AUTO OFF AND RESTARTED. IT DID THIS THREE TIMES BEFORE I ARRIVED BACK HOME. TOOK IT TO HAVE A DIAGNOSTIC TEST ON THE ENGINE AND CODE P2111 - THROTTLE ACTUATOR STOCK OPEN WAS THE RESULTS. THIS IS THE SECOND TIME THIS HAPPENED. THE FIRST TIME WAS 2 OR 3 MONTHS AGO BUT THE CHECK ENGINE LIGHT DID NOT COME ONE.
NHTSA complaint #10586910 — an unverified report by a vehicle owner.
ENGINE
WHILE I WAS DRIVING ON HWY DOING 75MPH MY MERCURY MARINER 2009 IT SUDDENLY LOSS POWER AND (WHILE ENGINE WAS RUNNING) I COULD NOT ACCELERATE. "TOOL" LIGHT CAME ON. I COULD NOT DO ANYTHING TO REGAIN SPEED (ACCELERATOR WAS DISABLE) AND THE ONLY FIX WAS TO SHUT DOWN THE ENGINE AND RE-START. VEHICLE WILL START AND WORK NORMALLY I TOOK TO THE MECHANICS THE NEXT DAY HE SAID THAT NO CODES CAME UP.
NHTSA complaint #10586997 — an unverified report by a vehicle owner.
ENGINE
THE VEHICLE SUDDENLY LOOSES POWER AND ACCELERATOR IS UNRESPONSIVE. THIS FIRST OCCURRED WITH APPROXIMATELY 33,000 MILES WHILE STILL IN WARRANTY AND DEALER REPLACED THROTTLE BODY. VEHICLE WAS FINE UNTIL NOVEMBER OF 2013 WITH ABOUT 80,000 MILES. THIS IS VERY DANGEROUS BECAUSE VEHICLE GOES DOWN TO IDLE SPEED AND WITH NO POWER, IT'S VERY HARD SOMETIMES TO GET TO THE SHOULDER OF THE ROAD WITH ONLY COAST CONTROL OF VEHICLE. THIS SHOULD BE A RECALL ISSUE AS I'M AWARE OF THE MANY OTHERS HAVING SAME PROBLEM. I'M MAKING THIS COMPLAINT TO TRY AND HAVE THIS ISSUE RESOLVED BEFORE SOMETHING TRAGIC HAPPENS AND ALSO TO DOCUMENT THIS SAFETY ISSUE.
NHTSA complaint #10558529 — an unverified report by a vehicle owner.
ENGINE
WHILE DRIVING, THE VEHICLE STARTED LOSING POWER AND THE WRENCH LIGHT CAME ON; STOPPED AND HAD A HARD TIME CRANKING BUT WAS ABLE TO GO ON. 2ND TIME PULLING ONTO A BUSY STREET, SAME INCIDENT, ABLE TO GET TO CENTER LAN AND RECRANK THIS TIME SURGING FORWARD BUT GAINED CONTROL AND WENT ON, VERY UNNERVING SITUATION, SCARED TO DRIVE LONG DISTANCES.
NHTSA complaint #10558442 — an unverified report by a vehicle owner.
ENGINE
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.
NHTSA complaint #10557514 — an unverified report by a vehicle owner.
ENGINE
CAR LOST POWER AND STOPPED WHILE DRIVING. ENGINE LIGHT CAME ON THEN WENT OFF.
NHTSA complaint #10549301 — an unverified report by a vehicle owner.
ENGINE
10/12/13 - TRAVELING ON HIGHWAY WITH THE CRUISE CONTROL SET AT 70MPH THE ENGINE JUST SHUT OFF. I COASTED TO THE SIDE OF THE ROAD, PUT IT IN PARK, WAITED A MINUTE OR TWO, THEN STARTED THE CAR. IT RAN WITHOUT INCIDENT FOR 20 MINUTES UNTIL I REACHED HOME. 10/15/13 TRAVELING ON HIGHWAY 60MPH THE ENGINE JUST SHUT OFF. I SHIFTED INTO NEUTRAL AND TRIED TO START IT, BUT IT WOULD NOT RESPOND. I COASTED ACROSS TWO LANES OF TRAFFIC TO THE SIDE OF THE ROAD, PUT IT IN PARK, WAITED A MINUTE OR TWO, THEN STARTED THE CAR. IT RAN WITHOUT INCIDENT FOR 20 MINUTES UNTIL I REACHED HOME. 10/17/13 FORD DEALERSHIP COULD NOT FIND ANYTHING WRONG WITH THE VEHICLE. NOTHING IN THE CODES. REPLACED THE RELAY SWITCH 10/18/13 TRAVELING ON MARKET STREET IN YOUNGSTOWN, OHIO AT A SPEED OF 30MPH THE ENGINE SHUT OFF. I COASTED IN TO THE CENTER TURN LANE, PUT IT IN PARK, WAITED A MINUTE AND STARTED THE CAR. THE VEHICLE IS RIDING MORE ROUGH AND SPUTTERS NOW AND THEN. DROVE FOR 10 MINUTES IN CITY TRAFFIC WITHOUT INCIDENT 10/18/13 WHILE DRIVING 45MPH IN RURAL AREA THE ENGINE SHUT OFF. I PULLED TO THE SIDE OF THE ROAD, PUT THE CAR IN PARK AND STARTED THE ENGINE. THIS WAS THE FIRST TIME I NOTICE A YELLOW WRENCH LIGHT ON IN THE LOWER LEFT PORTION OF MY DASHBOARD. CAR RIDES ROUGH AND SPUTTERS A BIT. AFTER ALL THESE MULTIPLE INCIDENTS IN A SHORT PERIOD OF TIME I REFUSE TO DRIVE THE CAR. IT IS NOT SAFE TO DRIVE AND IS NOT DEPENDABLE. THE ENGINE SHUTS OFF WITHOUT WARNING AT ALL SPEEDS, BUT ON THE HIGHWAY WITHOUT WARNING IS UNACCEPTABLE.
NHTSA complaint #10548870 — an unverified report by a vehicle owner.
ENGINE
TURNED THE VEHICLE ON, DROVE TO END OF STREET WRENCH AKA CHECK ENGINE LIGHT APPEARED JUST AT THE SAME TIME I CAME TO A STOP VEHICLE STARTED TO SHACK AND IDLE ROUGH AND THEN RPMS STARED GOING OUT OF NORMAL RANGE WITH OUT A STABLE POSITION. AND THEN VEHICLE DIED TWICE WHILE MAKING IT BACK TO HOUSE WHERE I HOOKED UP MY OBD2 CODE READER AND STATED THE IT WAS A P2111 CODE AND STATED:"THROTTLE ACTUATOR CONTROL SYSTEM STUCK OPEN" .
NHTSA complaint #10548427 — an unverified report by a vehicle owner.
ENGINE
CAR WENT INTO "LIMP MODE" TWICE WITHIN A 3 MILE SPAN WHILE DOING APPROX 50MPH ON A COUNTRY ROAD. BOTH TIMES, STOPPING AND RESTARTING THE ENGINE ALLOWED NORMAL OPERATION. 5 DAYS PRIOR, THE CAR ALSO STALLED TWICE. ONCE WHILE PRESSING THE GAS FROM A COMPLETE STOP, THE OTHER WHILE PRESSING THE GAS JUST BEFORE COMING TO A COMPLETE STOP (TRAFFIC SIGNAL WENT FROM RED TO GREEN). THIS IS HAPPENING LESS THAN 10 DAYS AFTER I HAD VCT SOLENOIDS REPLACED THAT WERE CAUSING THE CHECK ENGINE LIGHT TO COME ON.
NHTSA complaint #10546723 — an unverified report by a vehicle owner.