RoadVitals

2008 Mercury Mariner Engine Problems

Owner-reported complaints naming the engine system, filed with NHTSA

Data refreshed

Engine reportsComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
20
Latest Feb 20, 2020
Share of all reportsThis category as a share of every owner report on file for this model year. One report can name more than one component, so the categories overlap.
4%
of 461 total
Crash or fire reportedReports in this category whose submitter recorded that a crash or a fire occurred. The reporter's own answer on the NHTSA form, not a verified finding.
1
Injuries or deaths reportedTotals the submitters entered on their own reports in this category. Not verified by NHTSA and not a casualty statistic.
0

What this page shows

Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components. Every record below is an owner-reported complaint about the 2008 Mercury Mariner submitted to NHTSA — not a confirmed defect, not a recall and not a manufacturer bulletin. 20 reports on file name it.

Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.

Owner reports naming engine

Shown in the owner’s own words, exactly as filed

EnginePowertrain (other)
Filed Feb 20, 2020

THE CAR IS REVING HIGH AND ACCELERATING POORLY. THEN THE RED TRIANGLE LIGHT TELLING ME TO STOP SAFETY NOW COMES ON CAUSING ME TO PULL OVER AND SHUT CAR OFF. I TURN THE CAR BACK ON AND IT DRIVES BUT WITH SAME ISSUES. LOOK ON THE CARCOMPLAINT.COM WEBSITE FOR TSB-09-19-12 AND TSB-08-24-5 WHICH DETAIL WHAT MY CAR IS DOING AND MAKES IT APPEAR LIKE THERE IS A COOLING PUMP RECALL. FORD JUST TOLD ME THERE ARE NO RECALLS LISTED FOR MY VIN THOUGH. THE FREQUENCY OF WHICH THE RED TRIANGLE LIGHT COMES ON IS INCREASING THIS MONTH. IT WAS EVERY FEW MONTHS AND NOW IT IS WEEKLY-DAILY.

NHTSA ID
11310281
Incident
Feb 18, 2020
Mileage
231,000 mi
Engine
Filed Dec 17, 2017

FRONT MAIN SEAL IS LEAKING VEHICAL IS DRIPPING OIL ON MUFFLER WHEN SITTING STILL

NHTSA ID
11055107
Incident
Dec 7, 2017
Mileage
259,000 mi
Driver assistanceEngine
Filed Jun 15, 2017

THE THROTTLE IS HELD OPEN WHEN THE CRUISE CONTROL IS EMPLOYED BUT REMAINS OPEN WHEN THE CRUISE CONTROL IS TURNED OFF BOTH BY USING THE OFF BUTTON AND BRAKE APPLICATION. THIS HAPPENS AT 75-80 MPH ON INTERSTATE HIGHWAYS IN AZ AND UT. THE POWER BRAKE BOOSTER IS INEFFECTIVE WITH NO INTAKE VACUUM. THIS IS VERY DANGEROUS.

NHTSA ID
10995351
Incident
Jun 12, 2017
Mileage
101,851 mi
Driver assistanceEngine
Filed May 5, 2017

TL* THE CONTACT OWNS A 2008 MERCURY MARINER. WHILE DRIVING 40 MPH, THE VEHICLE HESITATED AND WOULD NOT ACCELERATE PAST 25 MPH. IN ADDITION, THE VEHICLE ACCELERATED RAPIDLY WITHOUT WARNING. THE CONTACT STATED THAT THE VEHICLE SHUT OFF ON NUMEROUS OCCASIONS AND THE CHECK ENGINE INDICATOR ILLUMINATED BRIEFLY WITHOUT WARNING. THE VEHICLE WAS NOT REPAIRED THE MANUFACTURER WAS MADE AWARE OF THE FAILURES. THE FAILURE MILEAGE WAS 44,000. UPDATED 08/04/17*LJ *CN

NHTSA ID
10983706
Incident
Feb 1, 2014
Mileage
44,000 mi
Engine
Filed Dec 6, 2016

TL* THE CONTACT OWNS A 2008 MERCURY MARINER. WHILE DRIVING 45 MPH, THE VEHICLE STALLED WITHOUT WARNING. THE CONTACT WAS UNABLE TO RESTART THE VEHICLE. THE VEHICLE WAS TOWED TO THE CONTACT'S RESIDENCE. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 125,000.

NHTSA ID
10930152
Incident
Sep 18, 2016
Mileage
125,000 mi
EngineSteering
Filed Oct 5, 2016
Crash reported

MY WIFE WAS DRIVING ON HER WAY HOME, AND OUT OF NOWHERE THE STEERING FELT WEIRD, AND WHILE DRIVING THE CAR SHUT OFF. NO POWER STEERING OR POWER BRAKES (DUE TO ENGINE SHUTTING OFF) AND WE DO NOT KNOW WHY THIS HAPPENED.

NHTSA ID
10914078
Incident
Oct 2, 2016
Mileage
149,000 mi
EngineSteering
Filed Oct 5, 2016

TL* THE CONTACT OWNS A 2008 MERCURY MARINER. THE CONTACT STATED THAT WHILE DRIVING AT 15 MPH, THE VEHICLE STALLED WITHOUT WARNING. THE CONTACT STATED THAT THE VEHICLE DISPLAYED "POWER STEERING FAULT" WARNING MESSAGE. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 100,000.

NHTSA ID
10913907
Incident
Oct 4, 2016
Mileage
100,000 mi
EngineSteering
Filed Feb 24, 2016

MY VEHICLE IS HAVING TROUBLE STEERING, TOOK MY VEHICLE TO THE REPAIR SHOP AND THEY INFORMED THAT IT WAS A RECALL ON IT. I TOOK MY VEHICLE TO THE DEALERSHIP AND THEY TOLD ME SINCE MY VIN NUMBER FOR ME VEHICLE WAS NOT IN THE RECALL THERE WAS NOTHING THAT THEY COULD DO AND WANTED TO CHARGE ME $125.00 TO PUT IT ON THEIR MACHINE, I ALREADY TO MY SUV TO THE SHOP AND THEY INFORMED TO GO TO THE DEALERSHIP

NHTSA ID
10837925
Incident
Feb 23, 2016
Mileage
149,000 mi
Engine
Filed May 14, 2014

I WAS DRIVING ON HIGHWAY ROUTE 22 AT APPROXIMATELY 60 MPH, WHEN SUDDENLY THE THROTTLE STOPPED RESPONDING AND THE TACHOMETER STARTED DROPPING. IN A MATTER OF SECONDS THE TACHOMETER REACHED ZERO AND THE VEHICLE STALLED, WHILE I WAS IN TRAFFIC ON THE HIGHWAY. I COASTED OFF TO THE SHOULDER AND PUT THE VEHICLE IN PARK. WHEN I TRIED TO RESTART THE VEHICLE, THE ENGINE WOULD TURN OVER AND START UP, HOWEVER, IMMEDIATELY AFTER I LET GO OF THE KEY, THE TACHOMETER WOULD DRIFT BACK DOWN TO ZERO AND THE VEHICLE WOULD STALL. AFTER A FEW MORE FAILED ATTEMPTS, I CALLED FOR A TOW. SINCE THIS OCCURRED AFTER HOURS, NO ONE WAS AVAILABLE TO WORK ON THE VEHICLE UNTIL THE NEXT MORNING. IN THE MORNING WHEN I ATTEMPTED TO SHOW THE TECHNICIAN THE FAILURE, THE VEHICLE STARTED UP AS IT DID THE EVENING BEFORE, THEN THE TACHOMETER STARTED DIPPING BACK DOWN, THEN JUST BEFORE IT STALLED, THE TACHOMETER FLUTTERED A LITTLE, THEN THE ENGINE REVVED BACK UP AND BEGAN IDLING NORMALLY. THE TECHNICIAN INDICATED THAT THERE WERE NO EVENTS LOGGED IN THE VEHICLES COMPUTER TO GIVE HIM AN IDEA OF WHAT CAUSED THE SUDDEN STALLING, AND HE COULD NOT FIND ANY OBVIOUS ISSUES WITH THE VEHICLE. THE VEHICLE WAS RETURNED TO ME WITHOUT REPAIR AND THE TECHNICIAN WARNED ME THAT IT IS LIKELY THAT THIS WOULD HAPPEN AGAIN AND THAT THEY CANNOT DIAGNOSE IT UNLESS THEY SEE IT WHEN IT IS NOT WORKING. NOW I AM CONCERNED THAT THIS WILL HAPPEN AGAIN WHILE DRIVING AND THAT IT WILL CAUSE AN ACCIDENT, OR WORSE. I READ AN ARTICLE FROM THE NORTH CAROLINA CONSUMERS COUNCIL STATING THAT THERE IS A KNOWN ISSUE WITH THE THROTTLE BODY OF THIS VEHICLE THAT CAUSES SUDDEN ENGINE STALL WHILE DRIVING. FORD ISSUED AN EXTENDED WARRANTY ON CERTAIN VEHICLES FOR THIS PIECE, HOWEVER WHEN I CONTACTED THE DEALERSHIP AND MENTIONED CONSUMER SATISFACTION PROGRAM 13N03, THEY INFORMED ME THAT MY VEHICLE DID NOT QUALIFY. I'M NOT SURE WHAT TO DO NEXT. *TR

NHTSA ID
10588259
Incident
May 11, 2014
Mileage
61,830 mi
Engine
Filed Apr 11, 2014

TL* THE CONTACT OWNS A 2008 MERCURY MARINER. THE CONTACT STATED THE VEHICLE INTERMITTENTLY STALLED WHILE DRIVING VARIOUS SPEEDS AND AFTER STARTING. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER HAD NOT BEEN MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 150,000. UPDATED 06/17/14*LJ UPDATED 8/21/2017*CN

NHTSA ID
10579158
Incident
Apr 9, 2014
Mileage
150,000 mi
Driver assistanceEngineSteering
Filed Mar 29, 2014

I HAD JUST MADE A RIGHT TURN AND WAS PROCEEDING DOWN THE BLOCK WHEN I HEARD A SUDDEN "CLICK" AND LOST POWER. I COULDN'T STEER AND THERE WAS NO POWER. I MANAGED TO GET THE CAR OVER TO THE CURB AND TURN OFF THE ENGINE. I RESTARTED IT A FEW MINUTES LATER AND IT STARTED UP OK. HOWEVER, THE RSC WARNING LIGHT STAYED ON EVEN THOUGH I HAD NEVER PRESSED THAT BUTTON. THIS IS NOT THE FIRST TIME THIS HAS HAPPENED. THE FIRST TIME IT HAPPENED I WAS TOLD IT WAS A BATTERY PROBLEM SO I GOT A NEW BATTERY. THAT WAS LESS THAN A YEAR AGO AND I CAN'T IMAGINE I NEED A NEW BATTERY THAT OFTEN - THAT SIMPLY NEEDING A NEW BATTERY WILL CAUSE MY CAR TO FAIL! IN DOING SOME RESEARCH I'VE COME ACROSS SEVERAL INSTANCES OF THE SAME ISSUE NECESSITATING REPLACEMENT OF THE THROTTLE BODY MODULE WITH TROUBLE CODES P2111 AND P2112 AND, IN FACT,THE NORTH CAROLINA CONSUMERS COUNCIL (NCCC) HAS OFFICIALLY PETITIONED THE NATIONAL HIGHWAY SAFETY ADMINISTRATION (NHTSA) FOR A DEFECT INVESTIGATION OF ALLEGED THROTTLE BODY FAILURES IN 2005-2012 FORD ESCAPE VEHICLES SHARING THE SAME OR SUBSTANTIALLY SIMILAR PART. LUCKILY I WAS ONLY ON SURFACE STREETS AND NOT THE FREEWAY. IT'S ONLY A MATTER OF TIME BEFORE THIS HAPPENS ON THE FREEWAY! IS THERE GOING TO BE A RECALL? *TR

NHTSA ID
10575567
Incident
Mar 29, 2014
Mileage
77,000 mi
EngineSteering
Filed Mar 25, 2014

DRIVING THE TRUCK THROUGH A DRIVE THRU AT A MCDONALDS WITH MY 2 YEAR OLD SON IN BACKSEAT AND THE POWER STEERING STOPPED WORKING AS PROCEEDING THRU DRIVE THRU, ALMOST HITTING THE BUILDING HAVING NO CONTROL OVER TRUCK. VERY DANGEROUS PROBLEM WITH THIS MAKE AND MODEL/THIS IS A SAFETY HAZARD AND SOMEONE WILL END UP AS A CASUALTY IF THIS PROBLEM WITH STEERING NOT RECALLED BY FORD. I AM A 280 GUY AND COULD BARELY STEER THE TRUCK UNTIL I SHUT IT OF AND RESTARTED IT. ALSO OIL LEAK ON ENGINE FOR MOST OF THESE V6 MARINERS AND ESCAPES IS ABOVE OIL PAN BY HARMONIC BALANCER,FORD REFUSES TO ADMIT THEY DID A HORRIBLE JOB PUTTING TOGETHER THE BOTTOM END OF THESE ENGINES.OVERALL FORD NEEDS TO RECONSIDER WHAT SHOULD BE A RECALL ON THEIR VEHICLES BEFORE SOMEONE GETS SERIOUSLY INJURED OR KILLED. I AM A ASE CERTIFIED MECHANIC AND HAVE NEVER ENCOUNTERED SUCH PROBLEMS WITH A VEHICLE. *TR

NHTSA ID
10574678
Incident
Mar 25, 2014
Mileage
139,000 mi
Driver assistanceEngine
Filed Mar 13, 2014

WITHOUT WARNING THE GAS PEDAL STICKS, WILL NOT FUNCTION. THIS HAPPENS INTERMITTENTLY AND SEEMS TO DISAPPEAR WHEN THE CAR WARMS UP, BUT ALSO HAS HAPPENED WHEN THE CAR IS WARM. VERY DANGEROUS WHEN TRYING TO ACCELERATE OR JUST DRIVE NORMALLY. THIS SEEMS TO BE A WIDESPREAD PROBLEM WITH BOTH THE FORD ESCAPE AND THE MERCURY MARINER. WE HAVE BEEN STRANDED SEVERAL TIMES. THIS NEEDS TO BE FIXED BY THE MANUFACTURER. *TR

NHTSA ID
10569002
Incident
Mar 15, 2013
Mileage
75,000 mi
Engine
Filed Mar 4, 2014

I WAS ATTEMPTING TO EXIT A PARKING LOT AND VEHICLE STALLED AND WOULD NOT ACCELERATE. I COASTED BACK INTO A PARKING SPACE, SHUT OFF ENGINE AND MADE A FEW MORE ATTEMPTS WITH THE SAME RESULT EACH TIME. I SHUT VEHICLE OFF AND WAITED FOR ROUGHLY TWENTY MINUTES AND TRIED AGAIN. VEHICLE DID ENGAGE AND I WAS ABLE TO EXIT PARKING STRUCTURE HOWEVER, VEHICLE STALLED IN THE MIDDLE OF THE ROAD. FORTUNATELY, THERE WAS LIGHT TRAFFIC AND I WAS ABLE TO COAST BACK INTO PARKING LOT. PROBLEM WAS SUBSEQUENTLY DIAGNOSED AS BAD BINDING THROTTLE CABLE. THE CABLE WAS REPLACED AT MY EXPENSE. FEBRUARY 24 AND 25 OF 2014, VEHICLE STALLED WHILE IN TRAFFIC, LOST POWER AND AGAIN PEDAL STUCK AND VEHICLE WOULD NOT ENGAGE. SUBSEQUENT DIAGNOSIS IS REPLACEMENT OF THROTTLE BODY AT MY EXPENSE. THIS IS EXTREMELY EXPENSIVE AND POTENTIALLY DANGEROUS.

NHTSA ID
10567376
Incident
Jan 31, 2013
Mileage
56,631 mi
BrakesDriver assistanceEngine
Filed Mar 3, 2014

WHILE DRIVING MY CAR STALLS WITHOUT WARNING THEN IT JERKS REAL HARD AND TAKES OFF SO I HAVE TO RIDE THE BRAKES AFTER COMING TO A STOP BEFORE I CAN PRESS THE GAS PEDDLE IT TAKES OFF SO I RIDE THE BRAKES. WHILE DRIVING AGAIN IT PICKS UP SPEED ON ITS OWN VERY SCARE PLEASE HELP. *TR

NHTSA ID
10566766
Incident
Feb 17, 2014
Mileage
102,000 mi
Engine
Filed Jan 12, 2010

2008 MERCURY MARINER WITH 40,000 MILES ON IT HAS TRANSMISSION LEAK CAUSED BY A FAULTY COOLING CONDENSER. I HAVE HEARD OF HUNDREDS IF NOT THOUSANDS OF COMPLAINTS SUCH AS THIS ONE IN THE MARINER AND THE SISTER CAR FORD ESCAPE. THIS REPAIR IS AROUND 800 DOLLARS AND APPARENTLY THERE IS NO SIGN OF A RECALL. I BELIEVE THE PART WAS MODIFIED IN THE 2009 MODELS BUT THIS DOES LITTLE FOR ME AND THOSE LIKE ME. NEW PART CAN EASILY BE DEFECTIVE DOWN THE ROAD AS WELL. NOT REPAIRED YET BUT IF DRIVEN CONTINUALLY CAN ME DANGEROUS TO CAR NOT TO MENTION PERSONS IN VEHICLE. *TR

NHTSA ID
10299515
Incident
Dec 10, 2009
Mileage
40 mi
Engine
Filed Dec 31, 2009

2008 MARINER JUST SERVICED FOR OIL CHANGE, SAFETY, AND NEW AIR FILTER. NOT MORE THAN TWELVE MILES, VEHICLE LOST POWER ON FREEWAY. WAS ABLE TO COAST OFF HIGHWAY ONTO OFF RAMP. VEHICLE WOULD START, BUT FAILED TO STAY RUNNING. VEHICLE HAS GAS AND TOWED TO SOUTH POINTE LINCOLN MERCURY. *TR

NHTSA ID
10297634
Incident
Dec 30, 2009
Mileage
55,099 mi
Engine
Filed Apr 23, 2009

THERE IS AN OPEN SPACE IN THE FRONT GRILL MEASURING 30-1/2' LONG X 4' HIGH X 2-1/2 ' 3-1/2' DEEP THAT IS 15' FROM THE ROAD, WHICH HAS NO GUARD OR SHIELD TO PROTECT IT FROM SOMETHING LIKE ROCKS FLYING OFF OF THE ROAD. THERE IS ALSO ANOTHER GAP ABOVE THIS WHERE DEBRIS CAN HIT THE A/C CONDENSER THAT IS 28' LONG X 1-1/2' HIGH. DEALER CLAIMED A ROCK FLEW OFF THE ROAD AN PUT A HOLE IN THE A/C CONDENSER. THE VEHICLE ONLY HAD 3,000 MILES AND WAS A COUPLE MONTHS OLD. DEALER WOULD NOT REPLACE OR REPAIR CONDENSER. CLAIMED IT WAS NOT A COVERED UNDER WARRANTY. *TR

NHTSA ID
10266510
Incident
Sep 3, 2008
Mileage
3,000 mi
EngineTransmission
Filed Nov 6, 2008

TL*THE CONTACT OWNS A 2008 MERCURY MARINER. WHILE DRIVING APPROXIMATELY 10 MPH ON NORMAL ROAD CONDITIONS AND PROCEEDING TO A STOP, THE ENGINE STALLED UNEXPECTEDLY. THE VEHICLE RESTARTED AFTER SEVERAL ATTEMPTS WITH A LOUD NOISE COMING FROM THE TRANSMISSION. THERE WERE NO WARNING INDICATORS ILLUMINATED ON THE INSTRUMENT PANEL. IN ADDITION, THERE WAS EXCESSIVE OIL LEAKAGE FROM THE GASKET. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER ON FOUR OCCASIONS, BUT THEY WERE UNABLE TO DUPLICATE THE FAILURES. THE VEHICLE HAS NOT BEEN REPAIRED. THE CONTACT WAS CONCERNED OF THE SAFETY RISK INVOLVED. THE FAILURE MILEAGE WAS 1,094 AND CURRENT MILEAGE WAS 7,000. UPDATED 12/1/08 *CN UPDATED 12/05/08.*JB

NHTSA ID
10247862
Incident
May 9, 2008
Mileage
1,094 mi
EngineTransmission
Filed Oct 29, 2008

TL*THE CONTACT OWNS A 2008 MERCURY MARINER. WHILE DRIVING APPROXIMATELY 10 MPH ON NORMAL ROAD CONDITIONS, THE VEHICLE CAME TO A COMPLETE STOP AND STALLED WHEN ATTEMPTING TO ACCELERATE. THE VEHICLE RESTARTED AFTER SEVERAL ATTEMPTS AND THE TRANSMISSION MADE A LOUD NOISE. THERE WERE NO WARNING INDICATORS ILLUMINATING ON THE INSTRUMENT PANEL. IN ADDITION, THERE WAS AN EXCESSIVE OIL LEAKAGE COMING FROM THE GASKET. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER ON FOUR OCCASIONS, BUT THEY COULD NOT DUPLICATE THE FAILURE. THE VEHICLE HAS NOT BEEN REPAIRED. THE CONTACT WAS CONCERNED OF THE SAFETY RISK INVOLVED. THE FAILURE MILEAGE WAS 1,094 AND CURRENT MILEAGE WAS 7,000.

NHTSA ID
10247136
Incident
May 8, 2008
Mileage
1,094 mi

Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.

Other components reported on this vehicle

Categories with enough reports to have a page of their own

Elsewhere on this vehicle

Data sources

Data on this page last refreshed .