IllustrationI WAS DRIVING IN TOWN AND SEVERAL TIMES WHEN I SLOWED DOWN TO STOP AT A STOP SIGN OR CORNER, AFTER BRAKING MY CAR ACCELERATED BY ITSELF. THE ENGINE REVVED UP AND MADE THE CAR JUMP FORWARD. I HAD TO SLIGHTLY RELEASE THE BRAKE SND BRAKE HARDER TO STOP AND AVOID GOING INTO THE INTERSECTION.
2008 Mercury Grand Marquis
Owner reports · Recalls · Investigations
Similar to other model years
Owner complaints for the 2008 Mercury Grand Marquis do not stand out strongly from the model-year median of 78.
About this comparison →How this year compares
Owner complaints by model year
Compare all Grand Marquis years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
All reported categories
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
200–25K
1425–50K
1650–75K
1075–100K
5100–150K
1150K+
66 reports with mileage · 12 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.
- Steering. Review the 21 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Vehicle Speed Control. Review the 15 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Electrical System. 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.
11 crash reports1 fire reports7 injury reports
Vehicle Speed Control complaints
15 reportsTHE CAR WILL SUDDENLY AND WITHOUT WARNING ACCELERATE TO 5000 RPM'S. HAD THROTTLE BODY AND MAS REPLACED WHICH SEEMED TO HELP. HOWEVER, IT STILL HAPPENS ONCE IN A WHILE (ONCE EVERY 3 WEEKS AVERAGE). USUALLY HAPPENS AFTER SHIFTING FROM PARK TO DRIVE AND DRIVING FORWARD AT LOW SPEEDS (AROUND 5-10 MPH). HASN'T HAPPENED AT HIGHER S…
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THE CAR WILL SUDDENLY AND WITHOUT WARNING ACCELERATE TO 5000 RPM'S. HAD THROTTLE BODY AND MAS REPLACED WHICH SEEMED TO HELP. HOWEVER, IT STILL HAPPENS ONCE IN A WHILE (ONCE EVERY 3 WEEKS AVERAGE). USUALLY HAPPENS AFTER SHIFTING FROM PARK TO DRIVE AND DRIVING FORWARD AT LOW SPEEDS (AROUND 5-10 MPH). HASN'T HAPPENED AT HIGHER SPEEDS. WAS TOLD BY ONE MECHANIC THAT THE COMPUTER IS DEFECTIVE???.
CAR SPEEDING UP WHILE BRAKING. *TR
WHEN REVERSING OUT OF DRIVEWAY CAR ACCELERATED ON ITS OWN. PRESSED BRAKES BUT CAR STILL MOVED BACKWARDS. HAVE SKID MARKS IN DRIVEWAY TO SHOW FOR IT. THREW CAR INTO NEUTRAL AND TURNED OFF ENGINE. RESTARTED AND EVERYTHING SEEMED NORMAL. DROVE CAR ON TRIP AND WHEN REDUCING SPEED TO SLOW DOWN BY PUSHING ON BRAKE CAR AGAIN ACCELERAT…
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WHEN REVERSING OUT OF DRIVEWAY CAR ACCELERATED ON ITS OWN. PRESSED BRAKES BUT CAR STILL MOVED BACKWARDS. HAVE SKID MARKS IN DRIVEWAY TO SHOW FOR IT. THREW CAR INTO NEUTRAL AND TURNED OFF ENGINE. RESTARTED AND EVERYTHING SEEMED NORMAL. DROVE CAR ON TRIP AND WHEN REDUCING SPEED TO SLOW DOWN BY PUSHING ON BRAKE CAR AGAIN ACCELERATED AND NEARLY HIT ANOTHER CAR. AGAIN THREW CAR INTO NEUTRAL AND TURNED OFF ENGINE. AND AGAIN WHEN RESTARTING CAR EVERYTHING SEEMED NORMAL AGAIN. WIFE IS EXTREMELY AFRAID OF DRIVING CAR. TOOK CAR TO DEALER WHERE IT WAS PURCHASED AND WAS TOLD THAT IT MAY HAVE BEEN THAT I PUSHED THE BRAKE AND GAS PEDAL AT THE SAME TIME, THIS HOWEVER, I BELIEVE IS NOT THE CASE. DEALERSHIP HOWEVER KEPT THE CAR FOR FURTHER INVESTIGATION AS TO WHAT THE PROBLEM MAY BE. WILL HEAR IN A DAY OR TWO. *TR
VEHICLE WAS PURCHASED USED IN JUNE, 2011. WHILE BRAKING FOR A STOP LIGHT, VEHICLE SUDDENLY ACCELERATED. HAD TO FORCEFULLY PUMP BRAKES TO STOP VEHICLE FROM HITTING VEHICLE IN FRONT. CAR RETURNED TO NORMAL OPERATION AS SOON AS I GOT IT STOPPED. HAVE HAD SIMILAR INCIDENTS A COUPLE OF TIMES BEFORE, ALTHOUGH NOT AS BAD AS THIS …
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VEHICLE WAS PURCHASED USED IN JUNE, 2011. WHILE BRAKING FOR A STOP LIGHT, VEHICLE SUDDENLY ACCELERATED. HAD TO FORCEFULLY PUMP BRAKES TO STOP VEHICLE FROM HITTING VEHICLE IN FRONT. CAR RETURNED TO NORMAL OPERATION AS SOON AS I GOT IT STOPPED. HAVE HAD SIMILAR INCIDENTS A COUPLE OF TIMES BEFORE, ALTHOUGH NOT AS BAD AS THIS ONE, HOWEVER, AT THAT TIME I THOUGHT MAYBE I HAD ACCIDENTALLY PRESSED THE ACCELERATOR WHILE BRAKING. I KNOW THAT WAS NOT THE CASE THIS TIME. *TR
TL* THE CONTACT OWNS A 2008 MERCURY GRAND MARQUIS. THE CONTACT STATED THAT WHILE DEPRESSING THE BRAKE PEDAL AND DRIVING APPROXIMATELY 5 MPH, THE RPM READING INCREASED AS THE VEHICLE JERKED FORWARD. THE CONTACT STATED ALL THE WARNING LIGHTS ON THE INSTRUMENT PANEL ILLUMINATED. THE FAILURE RECURRED VARIOUS TIMES CAUSING A CRASH. T…
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TL* THE CONTACT OWNS A 2008 MERCURY GRAND MARQUIS. THE CONTACT STATED THAT WHILE DEPRESSING THE BRAKE PEDAL AND DRIVING APPROXIMATELY 5 MPH, THE RPM READING INCREASED AS THE VEHICLE JERKED FORWARD. THE CONTACT STATED ALL THE WARNING LIGHTS ON THE INSTRUMENT PANEL ILLUMINATED. THE FAILURE RECURRED VARIOUS TIMES CAUSING A CRASH. THE CONTACT WAS DRIVING APPROXIMATELY 60 MPH WHEN THE VEHICLE ACCELERATED, CAUSING THE CONTACT TO CRASH INTO A GUARD RAIL AND A CONCRETE WALL. THE POLICE REPORTED TO THE SCENE AND A REPORT WAS FILED. THE VEHICLE WAS TOWED TO THE DEALER FOR DIAGNOSIS WHERE THE TECHNICIAN WAS UNABLE TO DIAGNOSE THE FAILURE. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 17,869. *TR
I WAS DRIVING ON THE INTERSTATE GOING ABOUT 65 MPH. I ACCELERATED RAPIDLY TO PASS A SEMI WHEN I WAS GETTING CLOSE TO MY EXIT. AFTER PASSING THE SEMI I LET MY FOOT OFF OF THE ACCELERATOR BUT THE VEHICLE DID NOT SLOW DOWN. I APPLIED THE BRAKE PEDAL BUT THE VEHICLE KEPT ACCELERATING FOR ABOUT 5 SECONDS. AFTER THAT I HEARD AN AUDIBL…
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I WAS DRIVING ON THE INTERSTATE GOING ABOUT 65 MPH. I ACCELERATED RAPIDLY TO PASS A SEMI WHEN I WAS GETTING CLOSE TO MY EXIT. AFTER PASSING THE SEMI I LET MY FOOT OFF OF THE ACCELERATOR BUT THE VEHICLE DID NOT SLOW DOWN. I APPLIED THE BRAKE PEDAL BUT THE VEHICLE KEPT ACCELERATING FOR ABOUT 5 SECONDS. AFTER THAT I HEARD AN AUDIBLE "CLUNK" COME FROM THE ENGINE COMPARTMENT AND THE VEHICLE RETURNED TO NORMAL OPERATION. THIS IS THE SECOND TIME THIS HAS HAPPENED THE FIRST WAS A MONTH AGO ACCELERATING RAPIDLY FROM A STAND STILL POSITION. IN NEITHER CASE DID I WRECK OR GET A SPEEDING TICKET. *TR
TL*THE CONTACT OWNS A 2008 MERCURY GRAND MARQUIS. THE CONTACT STATED THAT WHILE USING THE CRUISE CONTROL, APPLYING THE BRAKES AND RESUMING TO NORMAL THE VEHICLE SUDDENLY ACCELERATED TO HIGHER SPEEDS. THE VEHICLE STOPPED AFTER THE BRAKE PEDAL WAS APPLIED. THE VEHICLE WAS INSPECTED BY A DEALER WHO WAS UNABLE TO DIAGNOSE THE FAILUR…
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TL*THE CONTACT OWNS A 2008 MERCURY GRAND MARQUIS. THE CONTACT STATED THAT WHILE USING THE CRUISE CONTROL, APPLYING THE BRAKES AND RESUMING TO NORMAL THE VEHICLE SUDDENLY ACCELERATED TO HIGHER SPEEDS. THE VEHICLE STOPPED AFTER THE BRAKE PEDAL WAS APPLIED. THE VEHICLE WAS INSPECTED BY A DEALER WHO WAS UNABLE TO DIAGNOSE THE FAILURE SINCE THEY WERE UNABLE TO DUPLICATE IT. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS APPROXIMATELY 4,500.
TL* THE CONTACT OWNS A 2008 MERCURY GRAND MARQUIS. THE CONTACT STATED HE STARTED THE VEHICLE AND WHEN DEPRESSING THE BRAKES, THE VEHICLE ABNORMALLY ACCELERATED. THE CONTACT WAS UNABLE TO STOP THE UNINTENDED ACCELERATION AND THE VEHICLE DROVE OVER A CURB AND CRASHED INTO A SIGN. THE CONTACT AND PASSENGER BOTH SUSTAINED MINOR INJ…
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TL* THE CONTACT OWNS A 2008 MERCURY GRAND MARQUIS. THE CONTACT STATED HE STARTED THE VEHICLE AND WHEN DEPRESSING THE BRAKES, THE VEHICLE ABNORMALLY ACCELERATED. THE CONTACT WAS UNABLE TO STOP THE UNINTENDED ACCELERATION AND THE VEHICLE DROVE OVER A CURB AND CRASHED INTO A SIGN. THE CONTACT AND PASSENGER BOTH SUSTAINED MINOR INJURIES TO THEIR NECKS FROM THE SEAT BELT. THE VEHICLE SUSTAINED SUBSTANTIAL FRONT END DAMAGES. THE VEHICLE WAS TOWED TO THE DEALER AND INSPECTED BUT THE CAUSE OF THE UNINTENDED ACCELERATION FAILURE WAS NOT DISCLOSED TO THE CONTACT. THE BODY DAMAGE WAS REPAIRED AND THE CONTACT TRADED THE VEHICLE FRO ANOTHER. THE FAILURE AND CURRENT MILEAGES WERE 500. UPDATED 10/01/2010. *LJ UPDATED 10/04/10
TL*THE CONTACT OWNS A 2008 MERCURY GRAND MARQUIS. AFTER DRIVING IN REVERSE AND SHIFTING INTO DRIVE FROM A STOP LIGHT THE VEHICLE SURGED FORWARD AND CRASHED INTO ANOTHER VEHICLE. A POLICE REPORT WAS NOT FILED. ONE PERSON WAS REPORTED INJURED. SMOKE WAS SEEN COMING FROM UNDER THE HOOD OF THE VEHICLE. THE VEHICLE WAS TOWED TO THE …
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TL*THE CONTACT OWNS A 2008 MERCURY GRAND MARQUIS. AFTER DRIVING IN REVERSE AND SHIFTING INTO DRIVE FROM A STOP LIGHT THE VEHICLE SURGED FORWARD AND CRASHED INTO ANOTHER VEHICLE. A POLICE REPORT WAS NOT FILED. ONE PERSON WAS REPORTED INJURED. SMOKE WAS SEEN COMING FROM UNDER THE HOOD OF THE VEHICLE. THE VEHICLE WAS TOWED TO THE CONTACTS RESIDENCE. THE FAILURE HAD NOT BEEN DIAGNOSED BY THE DEALER. THE FAILURE AND CURRENT MILEAGES WERE 42,000.
Official recalls
314V704000 · Steering:rack And Pinion:pinion Shaft
Nov 5, 2014
Ford Motor Company (Ford) is recalling certain model year 2005-2011 Ford Crown Victoria, 2005-2011 Mercury Grand Marquis vehicles manufactured March 23, 2004, to August 30, 2011, and 2005-2011 Lincoln Town Car vehicles manufactured March 8, 2004, to August 30, 2011, and on which the upper intermediate shaft was serviced during the course of safety recall 13V-385. The prior repairs may not have been correctly performed.
Consequence & remedy
Consequence: Improper servicing of the upper intermediate shaft could cause the shaft to separate, which can then result in a loss of steering control, and increasing the risk of a crash.
Remedy: Ford will notify the owners of vehicles whose repair records reflect that the upper intermediate steering shaft was repaired during the course of the prior recall 13V-385. Dealers will inspect and replace the upper immediate shaft if necessary free of charge. The recall began November 17, 2014. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 14S25.
13V385000 · Steering
Aug 29, 2013
Ford is recalling certain model year 2005-2011 Ford Crown Victoria (including Crown Victoria Police Interceptors), Mercury Grand Marquis, and Lincoln Town Car vehicles. The affected vehicles are currently registered or were originally sold in Connecticut, Delaware, the District of Columbia, Illinois, Indiana, Iowa, Kentucky, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, Virginia, West Virginia, and Wisconsin. Severe corrosion can seize the lower intermediate shaft which may cause the upper intermediate shaft to collapse and the steering column lower bearing to separate.
Consequence & remedy
Consequence: If the lower bearing separates, the vehicle may experience a loss of steering, increasing the risk of a crash.
Remedy: Ford will notify owners and dealers will replace the lower intermediate shaft, free of charge. The upper intermediate shaft and steering column lower bearing will be inspected to identify any damage that may have occurred as a result of lower intermediate shaft corrosion, and repaired or replaced as necessary. If the steering column lower bearing has separated, a retainer clip will be installed. The recall began on October 23, 2013. Owners may contact Ford at 1-866-436-7332. Ford's recall number is 13S08.
07V270000 · Suspension:front:hub
Jun 26, 2007
ON CERTAIN PASSENGER VEHICLES, A FRONT WHEEL BEARING AND HUB ASSEMBLY MAY FRACTURE DUE TO IMPROPER HEAT TREATMENT.
Consequence & remedy
Consequence: IF A HUB FRACTURES, IT MAY POTENTIALLY DETACH FROM THE WHEEL KNUCKLE, RESULTING IN THE WHEEL BEING RETAINED ONLY BY THE BRAKE CALIPER ASSEMBLY. AS A RESULT, THE WHEEL MAY SEPARATE FROM THE VEHICLE POTENTIALLY RESULTING IN A CRASH.
Remedy: DEALERS WILL INSPECT BOTH FRONT WHEEL BEARING AND HUB ASSEMBLIES AND REPLACE THEM FREE OF CHARGE. THE RECALL BEGAN ON JUNE 22, 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
1PE08060 · 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