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2008 Mercury Mountaineer

Owner reports · Recalls · Investigations

Similar to other model years

Owner complaints for the 2008 Mercury Mountaineer do not stand out strongly from the model-year median of 117.

About this comparison →

When problems were reported

Mileage at the reported incident

81 reports with mileage · 15 unknown

NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.

What to inspect

Issues worth paying extra attention to based on owner reports.

  • Seats. Review the 54 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Electrical System. Review the 39 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Power Train. Review the 9 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

3 crash reports0 fire reports0 injury reports

Engine complaints

6 reports
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15,000 miles · Oct 18, 2020
EnginePower TrainUnknown Or Other

SINCE I PURCHASED IN 2009, ENGINE KILLS ANYTIME, MOSTLY WHEN GAS PEDAL NOT PRESSED. PULLING OUT OF PARKING LOTS, SITTING AT RED LIGHTS, OR LETTING OFF GAS ON INTERSTATE, ENGINE JUST KILLS. SOMETIMES FEELS LIKE A JOLT. I HAVE TO PUT THE SHIFT IN NEUTRAL AND RESTART THE ENGINE. RECORDS OF ALL VISITS FOR THE PROBLEM AT DEALERSHIP. …

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SINCE I PURCHASED IN 2009, ENGINE KILLS ANYTIME, MOSTLY WHEN GAS PEDAL NOT PRESSED. PULLING OUT OF PARKING LOTS, SITTING AT RED LIGHTS, OR LETTING OFF GAS ON INTERSTATE, ENGINE JUST KILLS. SOMETIMES FEELS LIKE A JOLT. I HAVE TO PUT THE SHIFT IN NEUTRAL AND RESTART THE ENGINE. RECORDS OF ALL VISITS FOR THE PROBLEM AT DEALERSHIP. NEVER COULD SOLVE PROBLEM, BUT TOO UNSAFE TO DONATE TO MY GRANDSON. IF SOMETHING WERE TO HAPPEN TO HIM BECAUSE OF A DEFECT THAT WAS NEVER FOUND, I DON'T KNOW WHAT I'D DO. CANNOT CHECK TRANSMISSION FLUID LEVEL. SEALED. I DO HAVE SOME FLUID STAINS ON MY DRIVEWAY. FOR YEARS I'VE REPORTED TO THE DEALERSHIP AND SPECIFIED THE CONCERN FOR SAFETY BUT TO NO AVAIL. IT KILLS ANYTIME. MAY NOT DIE FOR A WEEK, OR TOMORROW, OR EVEN A MONTH. NO PARTICULAR PATTERN. FEELS LIKE A TRANSMISSION PROBLEM. IF I'M SITTING IN A PARKING LOT WITH MOTOR RUNNING, SOMETIMES IT JUST KILLS. IT'S THE SHIFTING TO NEUTRAL WHILE DRIVING ON HIGHWAYS AND STREETS TO RESTART WHILE MOVING I'M WORRIED ABOUT. I'VE HAD SEVERAL MECHANICS CLAIM THEY FIXED IT BUT TO NO AVAIL. PLEASE GIVE ME SOME DIRECTION. ALL THE SHOPS I'VE GONE TO ARE REPUTABLE BUSINESSES. ONE MECHANIC SAID THE ELECTRONIC BRAIN (COMPUTER BOX) MIGHT BE CAUSING AND SAID TO SEND IT TO MERCURY FOR RECALCULATION. I DON'T KNOW ABOUT THAT. MOST OF THE READ OUTS ARE EPA RELATED.

NHTSA ODI #11365014

140,074 miles · May 9, 2020
Electrical SystemElectronic Stability Control (esc)Engine

CAR WHEN IDLE SHUTS OFF IN MIDDLE OF TRAFFIC LOCKING BREAK AN STEERING WHEEL CAN CAUSE ACCIDENT HAPPENED TO ME IN MIDDLE OF TRAFFIC THANK GOD I WAS CLOSE TO EMERGENCY EXIT CAR SHUTOFF NOT ALLOWING TO BRAKE HAD TO PRESS EMERGENCY BRAKE. *TR

NHTSA ODI #11323974

24,000 miles · Feb 17, 2015
EngineUnknown Or Other

**************************ENGINE WILL SHUTOFF WITHOUT WARNING********************** IT HAS HAPPENED WITH VARIOUS LEVELS OF GAS, VARIOUS WEATHER CONDITIONS, AND BOTH WHILE STOPPED AND MOVING. THE "CHECK FUEL FILLER INLET" LIGHT WILL COME ON. SOMETIMES, THE CHECK ENGINE LIGHT WILL REMAIN ON, BUT WILL CLEAR WITHIN THE NEXT START…

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**************************ENGINE WILL SHUTOFF WITHOUT WARNING********************** IT HAS HAPPENED WITH VARIOUS LEVELS OF GAS, VARIOUS WEATHER CONDITIONS, AND BOTH WHILE STOPPED AND MOVING. THE "CHECK FUEL FILLER INLET" LIGHT WILL COME ON. SOMETIMES, THE CHECK ENGINE LIGHT WILL REMAIN ON, BUT WILL CLEAR WITHIN THE NEXT STARTUP OR TWO. CAR HAS BEEN AT DEALERS AT LEAST 4 TIMES FOR ISSUE. ENGINE THROTTLE BODY AND CRANKSHAFT SENSORS HAVE BEEN REPLACED. IN THE BEGINNING, THE VEHICLE WOULD DO THIS ONCE OR TWICE, THEN RUN PERFECTLY FOR MONTHS AT A TIME. EACH TIME IT IS "FIXED" BY DEALER, WHO CLAIMS THEY CANNOT REPLICATE THE PROBLEM. LATELY IT WILL STALL 4-6 TIMES WITHIN A 30 MINUTE PERIOD. LAST MONTH, I WAS ABLE TO READ CODE 2107. TODAY, IT STALLED AGAIN 6 TIMES, NO CHECK ENGINE LIGHT REMAINS, NO CODE TO BE READ. WHEN CAR IS RUNNING NORMALLY, IT SOMETIMES HICCUPS AND SEEMS TO RUN ROUGH. *TR

NHTSA ODI #10683911

63,188 miles · Jul 8, 2014
Electrical SystemEngineSeats

ENGINE WILL NOT TURN OVER. ALL ELECTRONICS WORK. KEEP TURNING IGNITION KEY ON AND OFF SOMETIMES IT WILL START IN A FEW MINUTES OTHER TIMES IT HAS TO SIT FOR A HALF HOUR OR MORE. DOME LIGHT WILL COME ON FOR NO REASON. AFTER READING OTHERS HAVING SAME ISSUES, I TURNED ON EASY ACCESS AND SLIGHTLY TURNED IGNITION KEY AND SURE ENOUGH…

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ENGINE WILL NOT TURN OVER. ALL ELECTRONICS WORK. KEEP TURNING IGNITION KEY ON AND OFF SOMETIMES IT WILL START IN A FEW MINUTES OTHER TIMES IT HAS TO SIT FOR A HALF HOUR OR MORE. DOME LIGHT WILL COME ON FOR NO REASON. AFTER READING OTHERS HAVING SAME ISSUES, I TURNED ON EASY ACCESS AND SLIGHTLY TURNED IGNITION KEY AND SURE ENOUGH THE SEAT WENT BACK AND DOME LIGHT CAME ON. THIS VEHICLE HAS BEEN TO A FORD DEALER NUMEROUS TIMES, ONCE TOWED, AND THEY CAN'T SEEM TO DUPLICATE THE PROBLEM. THANKS TO THIS WEBSITE I NOW HAVE MORE INFORMATION AND HOPEFULLY WILL BE ABLE TO GET THIS ON GOING ISSUE FIXED. THE EASY ACCESS IS ALWAYS TURNED OFF. THE NO CRANK NO START IS THE BIG PROBLEM BECAUSE I CAN'T GO ANYWHERE FOR JUST A HALF HOUR AND BE CONFIDENT IT WILL START. *JS

NHTSA ODI #10609098

Mileage unknown · Aug 23, 2013
Engine

I HAVE 2 BROKEN BOLTS ON MY RT SIDE EXHAUST MANIFOLD AND ONCE AND A WHILE CAN SMELL EXHAUST FUMES IN THE TRUCK. I'VE TAKEN IT TO FIVE SEPARATE MECHANICS FOR DIAGNOSTICS THE REPAIRS ARE VERY EXPENSIVE AND EVERYONE SAID THERE SHOULD BE A RECALL FOR THIS. AFTER A LITTLE RESEARCH THERE ARE HUNDREDS IF NOT THOUSANDS WITH THIS SAME …

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I HAVE 2 BROKEN BOLTS ON MY RT SIDE EXHAUST MANIFOLD AND ONCE AND A WHILE CAN SMELL EXHAUST FUMES IN THE TRUCK. I'VE TAKEN IT TO FIVE SEPARATE MECHANICS FOR DIAGNOSTICS THE REPAIRS ARE VERY EXPENSIVE AND EVERYONE SAID THERE SHOULD BE A RECALL FOR THIS. AFTER A LITTLE RESEARCH THERE ARE HUNDREDS IF NOT THOUSANDS WITH THIS SAME PROBLEM I HAVE GRANDCHILDREN WHO HAVE TO DRIVE IN THIS TRUCK EVERY DAY AND ARE SUBJECT TO DANGEROUS FUMES WHY !!!!!!!!! HASN'T FORD DONE ANYTHING ABOUT THIS. I CALLED FORD TELL THEM WHAT THE PROBLEM IS AND GET NOWHERE THERE EXACT WORD ARE ( THERE ISN'T ENOUGH COMPLAINTS ABOUT THIS PROBLEM ) BS !! LOOK ON THE INTERNET AND YOU'LL SEE NHTSA NEEDS TO HELP PEOPLE WITH THIS NOW BEFORE IT'S TO LATE. *TR

NHTSA ODI #10536855

86,400 miles · Feb 7, 2013
Engine

VEHICLE IS MISSING, NOW SHAKING. NEED SPARK PLUG REPLACED BUT IS STUCK. NEEDED SPECIAL TOOL/EQUIPMENT TO GET OUT. WILL BE VERY COSTLY. I SHOULDN'T HAVE TO HAVE THIS PROBLEM SINCE I ONLY PURCHASED IT ALMOST 2 YRS AGO. I AM REALLY CONTEMPLATING SUING!! *TR

NHTSA ODI #10496692

Official recalls

1

07V453000 · Power Train:automatic Transmission:cooling Unit And Lines

Sep 26, 2007

ON CERTAIN SPORT UTILITY VEHICLES EQUIPPED WITH THE 4.6L ENGINE AND 6R TRANSMISSION, THE BOLT SECURING THE TRANSMISSION OIL COOLER LINE FITTINGS AT THE TRANSMISSION MAY NOT HAVE BEEN SUFFICIENTLY TORQUED DURING VEHICLE ASSEMBLY. AS A RESULT, THE BOLT MAY LOOSEN AND THE TRANSMISSION OIL COOLER LINES MAY DISENGAGE FROM THE TRANSMISSION, CAUSING A TRANSMISSION FLUID LEAK.

Consequence & remedy

Consequence: IF LEAKING TRANSMISSION FLUID CONTACTS THE CATALYTIC CONVERTER, IT MAY POSE A RISK OF FIRE.

Remedy: DEALERS WILL INSPECT AND HAVE THE TRANSMISSION COOLER LINE ATTACHMENT BOLT TIGHTENED FREE OF CHARGE. THE RECALL BEGAN ON AUGUST 30, 2007. OWNERS MAY CONTACT FORD AT 1-800-392-3673.

Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗

NHTSA investigations

1

PE08060 · Tire Valve Cracking

Opened Oct 14, 2008 · Closed Apr 9, 2009

Status: closed (inferred from source dates) · Tires:valve

ON OCTOBER 14, 2008, ODI OPENED PE08-060 TO INVESTIGATE ALLEGATIONS OF CRACKED AND LEAKING SNAP-IN TIRE VALVES IN MODEL YEAR (MY) 2007 VEHICLES MANUFACTURED BY FORD MOTOR COMPANY.THE VALVES WERE SUPPLIED TO FORD BY TOPSEAL AUTO-PARTS, A SUBSIDIARY OF THE SHANGHAI BAOLONG AUTOMOTIVE CORPORATION IN CHINA.VALVES MADE BY TOPSEAL FOR AFTERMARKET SALE WERE THE SUBJECT OF TWO RECENT SAFETY RECALLS BY TECH INTERNATIONAL (08T-018) AND DILL AIR CONTROLS (08T-028), THE LATTER OF WHICH WAS INVESTIGATED BY ODI IN PE08-036 AND EA08-022.THE DEFECT CONDITIONS ADDRESSED BY THE AFTERMARKET TIRE VALVE RECALLS BOTH INVOLVED INADEQUATE RESISTANCE TO OZONE CRACKING DUE TO ISSUES WITH THE SUPPLY OF ANTI-OZONANT CHEMICALS TO TOPSEAL FOR A PERIOD FROM JULY TO MID-NOVEMBER 2006.THE AFTERMARKET VALVES WERE COMPOUNDED WITH A BLEND OF EPDM AND NATURAL RUBBER, USING A RELATIVELY LOW PERCENTAGE OF EPDM (EPDM PROVIDES INHERENT RESISTANCE TO OZONE CRACKING).HENCE, THE NEED FOR ANTI-OZONANT CHEMICALS AND THE PROBLEMS WITH CRACKING WHEN THOSE CHEMICALS WERE MISSING OR OUT OF SPECIFICATION IN SOME LOTS OF VALVES.BOTH RECALL CAMPAIGNS INVOLVED INSPECTION PROGRAMS TO IDENTIFY AND REPLACE VALVES WITH VISIBLE SURFACE CRACKING.ALTHOUGH THE TOPSEAL VALVES SUPPLIED TO FORD ALSO APPEAR TO HAVE BEEN AFFECTED BY THE ANTI-OZONANT SUPPLY ISSUES IN MID TO LATE-2006, FORD INDICATED THAT ITS VALVES WERE MADE AT A DIFFERENT TOPSEAL PRODUCTION LINE AND WERE COMPOUNDED WITH A HIGHER PERCENTAGE OF EPDM RUBBER TO MEET MORE STRINGENT SPECIFICATIONS FROM FORD.ODI'S ANALYSIS OF COMPLAINT AND WARRANTY DATA PROVIDED BY FORD SHOWED THAT PROBLEMS WITH CRACKED TIRE VALVES WERE SIGNIFICANTLY HIGHER FOR MY 2007 VEHICLES PRODUCED FROM DECEMBER 2006 THROUGH MARCH 2007.FORD RESPONDED BY IMPLEMENTING CHANGES IN ITS MATERIAL SPECIFICATIONS FOR SNAP-IN RUBBER TIRE VALVES AND ALSO INCREASING THE QUALITY AND ACCEPTANCE STANDARDS FOR VALVES IMPORTED FOR USE IN ITS VEHICLES.WHILE THE COMPLAINT AND WARRANTY CLAIM RATES ARE ELEVATED FOR SUBJECT VEHICLES PRODUCED FROM DECEMBER 2006 THROUGH MARCH 2007, THE RATES OF LEAKING VALVES ARE WELL BELOW ONE PERCENT OF PRODUCTION FOR EACH OF THE PEAK MONTHS FOR ALL OF THE AFFECTED MODELS.A SUBSTANTIAL MAJORITY OF THE SUBJECT VEHICLES ARE EQUIPPED WITH TIRE PRESSURE MONITORING SYSTEMS (TPMS) WHICH WARN THE DRIVER WHEN ANY TIRE PRESSURES DROPS BELOW 25 PERCENT OF RECOMMENDED INFLATION PRESSURE. AS OUTLINED IN A LETTER TO ODI DATED APRIL 6, 2009, FORD HAS AGREED TO SEND LETTERS TO OWNERS OF CERTAIN MY 2007 AND 2008 FORD, LINCOLN AND MERCURY VEHICLES TO PROVIDE INFORMATION ABOUT THE CRACKING CONCERN. LETTERS WILL BE SENT TO OWNERS OF VEHICLES BUILT FROM NOVEMBER 2006 THROUGH MAY 2007.OWNERS CAN OPT FOR A FREE DEALER INSPECTION.VALVES EXHIBITING SURFACE CRACKS OR AIR LEAKAGE RELATED TO OZONE ATTACK WILL BE REPLACED BY FORD UNDER ITS NORMAL WARRANTY TERMS.FORD EXPECTS TO SEND THE LETTER BY APPROXIMATELY MID-MAY 2009. BASED ON THE USE OF TPMS IN THE MAJORITY OF SUBJECT VEHICLES AND THE RELATIVELY LOW RATES OF REPAIRS ASSOCIATED WITH LEAKING VALVES AND RESULTANT TIRE DAMAGE, ODI BELIEVES THAT THE ACTIONS FORD HAS AGREED TO TAKE WILL PROVIDE EFFECTIVE AND EXPEDITIOUS RESOLUTION FOR VEHICLES THAT WERE BUILT DURING THE PERIOD WHEN VALVES WITH INADEQUATE RESISTANCE TO OZONE CRACKING WERE MOST LIKELY TO HAVE BEEN USED IN VEHICLE PRODUCTION.FURTHER INVESTIGATION OF THIS MATTER WOULD NOT BE AN EFFICIENT ALLOCATION OF AGENCY RESOURCES.ACCORDINGLY, THIS INVESTIGATION IS CLOSED.THE CLOSING OF THIS INVESTIGATION DOES NOT CONSTITUTE A FINDING BY NHTSA THAT A SAFETY-RELATED DEFECT DOES NOT EXIST.THE AGENCY WILL CONTINUE TO