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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

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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

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

What owners actually said

78 reports
42,000 miles · Jul 7, 2010
Vehicle Speed ControlCrashFireInjury

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.

NHTSA ODI #10341870

2,000 miles · Mar 16, 2010
Suspension

LOUD BANGING NOISE COMING FROM THE RIGHT REAR SUSPENSION AREA WHEN GOING OVER SPEED BUMPS AND MAKING RIGHT HAND TURNS. I HAVE HAD THE CAR BACK TO THE DEALERSHIP 13 TIMES AND THEY HAVE TOLD ME NOT TO BRING IT BACK, THAT I NEED TO LEARN TO LIVE WITH IT. *TR

NHTSA ODI #10320134

27,000 miles · Feb 18, 2010
Vehicle Speed Control

CRUISE CONTROL, SUDDEN ACCELERATION. CAR WENT TO 80 BEFORE I COULD STOP IT VEHICLE IS A 2008 MERCURY GRAND MARQUIS LS WITH 27,500 MILES ON IT . THE DEALER REPLACED THE ECM. THIS HAPPENED TO MY WIFE ALSO AT 35 MPH WENT TO 65 BEFORE SHE STOPPED IT. *TR

NHTSA ODI #10311873

9,500 miles · Jan 27, 2010
Equipment

IN JULY 2009 I PURCHASED A SLIGHTLY USED 2008 MERCURY GRAND MARQUIS. ON MANY OCCASIONS WHILE DRIVING I HAVE APPLIED THE BRAKES ONLY TO FEEL THE CAR ACCELERATE WITHOUT WARNING. I HAVE NOT HAD ANY ACCIDENTS, BUT I FEEL THAT IT IS JUST A MATTER OF TIME .... THE PROBLEM RESIDES IN THE CLOSE PROXIMITY OF THE ACCELERATOR PEDAL TO T…

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IN JULY 2009 I PURCHASED A SLIGHTLY USED 2008 MERCURY GRAND MARQUIS. ON MANY OCCASIONS WHILE DRIVING I HAVE APPLIED THE BRAKES ONLY TO FEEL THE CAR ACCELERATE WITHOUT WARNING. I HAVE NOT HAD ANY ACCIDENTS, BUT I FEEL THAT IT IS JUST A MATTER OF TIME .... THE PROBLEM RESIDES IN THE CLOSE PROXIMITY OF THE ACCELERATOR PEDAL TO THE BRAKE PEDAL. MY CAR HAS AUTO-ADJUST PEDAL HEIGHT, BUT UNFORTUNATELY BOTH PEDALS ADJUST AS A SINGLE UNIT, RATHER THAN ONE-AT-A-TIME. SIMPLY, THE ACCELERATOR PEDAL IS TOO FAR TO THE LEFT - ABOUT TWO INCHES FROM THE RHS EDGE OF THE BRAKE PEDAL, AND WHEN I DEPRESS THE BRAKE PEDAL, OFTEN THE RIGHT-HAND EDGE OF THE SOLE OF MY SHOE CONTACTS THE SURFACE OF THE ACCELERATOR PEDAL, LEADING TO THE SURGE OF POWER -- WHICH IS THE PROBLEM. THIS IS MADE WORSE IN THAT WHEN THE BRAKE IS APPLIED, THE PEDAL WILL PASS TO AND THROUGH THE PLANE OF THE SURFACE OF THE ACCELERATOR PEDAL, THUS MAKING THIS SHOE-CONTACT MORE LIKELY. THERE IS ABUNDANT ROOM TO MOVE THE ACCELERATOR PEDAL TO THE RIGHT - WITH A NEWLY-DESIGNED PEDAL SHAFT. (THE PRESENT PEDAL "HOOKS" TO THE LEFT AT THE BOTTOM PART, SORT OF LIKE THE LOWER PART OF THIS "9" DIGIT) OR, THE PEDALS COULD BE RAISED UP/LOWERED INDEPENDENTLY, IN ORDER TO INCREASE THE VERTICAL DISTANCE BETWEEN THEM. A THICKER RUBBER PAD ON THE BRAKE PEDAL WOULD ACCOMPLISH THIS HANDILY -- IT WOULD NEED TO BE ABOUT ONE INCH THICKER. I AM VERY CONCERNED ABOUT THIS. I CONTACTED FORD MOTOR COMPANY ABOUT THIS PROBLEM WITHIN A SHORT TIME OF BUYING THE CAR. I HAVE CONTACTED THEM SEVERAL TIMES, INCLUDING TODAY, BUT SO FAR THEY HAVE BEEN UNRESPONSIVE. (BUT OF COURSE TODAY'S CONVERSATION MAY BEAR FRUIT. WE SHALL SEE.) IN THE NOTES OF MY FIRST CALL, ACCORDING TO THE PERSON WHO READ THEM TO ME ON A SUBSEQUENT CALL, MY CONCERN WAS DESCRIBED AS "... OWNER NEEDS TO KNOW THE LOCATION OF THE ACCELERATOR AND BRAKE PEDALS ..." OR WORDS SUCH AS THOSE! *CN

NHTSA ODI #10302876

200 miles · May 26, 2009
Vehicle Speed ControlCrashInjury

I WAS PREPARING TEST DRIVE 2008 MERCURY MARQUIS AT HONOLULU FORD. I WAS STOPPED AT THE EXIT TO HOUGHTAILING ST WHEN THE ENGINE ACCELERATE. I LOOKED DOWN AND MY FOOT WAS NOT ON THE GAS IT WAS ON THE BRAKE. THE CAR STARTED TO MOVE OUT INTO THE STREET CROSSING THE ROAD HITTING ANOTHER VEHICLE AND A LIGHT POLE. *TR

NHTSA ODI #10270015

5 miles · May 19, 2009
Service Brakes, Hydraulic

BRAKE AND GAS PEDAL TO CLOSE TOGETHER WHEN APPLYING BRAKES ALSO HIT GAS HAS HAPPENED MANY TIMES ALMOST REQUIRES A CONSCIOUS EFFORT TO AVOID THIS PROBLEM. *TR

NHTSA ODI #10269383

23,000 miles · May 4, 2009
Structure

I WAS DRIVING ON THE NY THRUWAY WHEN I NOTICED THE FRONT OF MY HOOD WAS VIBRATING I HAD ALREADY TRAVELED FOR OVER 200 MILES I NEVER OPENED OR RELEASED THE HOOD IT CAME LOOSE BY ITSELF,THIS HAS NEVER HAPPENED BEFORE, I HAD TO PULL OVER IN THE BREAK DOWN LANE TO CLOSE IT THE HOOD HAD NOT BEEN OPENED FOR SERVICE PRIOR TO THIS OCCA…

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I WAS DRIVING ON THE NY THRUWAY WHEN I NOTICED THE FRONT OF MY HOOD WAS VIBRATING I HAD ALREADY TRAVELED FOR OVER 200 MILES I NEVER OPENED OR RELEASED THE HOOD IT CAME LOOSE BY ITSELF,THIS HAS NEVER HAPPENED BEFORE, I HAD TO PULL OVER IN THE BREAK DOWN LANE TO CLOSE IT THE HOOD HAD NOT BEEN OPENED FOR SERVICE PRIOR TO THIS OCCASION. *TR

NHTSA ODI #10267631

Mileage unknown · Dec 13, 2008
Service Brakes, Hydraulic

THE VEHICLE ACCELERATEDS WHEN THE BRAKE PEDAL IS DEPRESSED. BECAUSE THE BRAKE PEDAL AND THE GAS PEDAL HEIGHT IS NEARLY THE SAME HEIGHT AND WHEN DEPRESSING THE BRAKE PEDAL YOU CAN ALSO DEPRESS THE GAS PEDAL CAUSING THE VEHICLE TO ACCELERATE. THE VEHICLE ACCELERATES WHEN THE BRAKE PEDA…

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THE VEHICLE ACCELERATEDS WHEN THE BRAKE PEDAL IS DEPRESSED. BECAUSE THE BRAKE PEDAL AND THE GAS PEDAL HEIGHT IS NEARLY THE SAME HEIGHT AND WHEN DEPRESSING THE BRAKE PEDAL YOU CAN ALSO DEPRESS THE GAS PEDAL CAUSING THE VEHICLE TO ACCELERATE. THE VEHICLE ACCELERATES WHEN THE BRAKE PEDAL WAS DEPRESSED. *TR

NHTSA ODI #10251700

17,000 miles · Nov 12, 2008
Service Brakes, HydraulicCrashInjury

TL*THE CONTACT OWNS A 2008 MERCURY GRAND MARQUIS. WHILE DRIVING 65 MPH ON A TWO LANE ROAD, THE VEHICLE ACCELERATED WHEN THE BRAKE PEDAL WAS DEPRESSED. THE CONTACT REAR ENDED THE PRECEDING VEHICLE. THE CONTACT WAS INJURED. THE AIR BAGS FAILED TO DEPLOY AND THE SEAT BELT DID NOT TIGHTEN. THE FAILURE AND CURRENT MILEAGES WERE …

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TL*THE CONTACT OWNS A 2008 MERCURY GRAND MARQUIS. WHILE DRIVING 65 MPH ON A TWO LANE ROAD, THE VEHICLE ACCELERATED WHEN THE BRAKE PEDAL WAS DEPRESSED. THE CONTACT REAR ENDED THE PRECEDING VEHICLE. THE CONTACT WAS INJURED. THE AIR BAGS FAILED TO DEPLOY AND THE SEAT BELT DID NOT TIGHTEN. THE FAILURE AND CURRENT MILEAGES WERE 17,000. REMAILED 12/10/08. *LJ

NHTSA ODI #10248587

19,800 miles · Nov 1, 2008
Engine And Engine Cooling

UNEXPECTED ACCELERATION OF 2008 MERCURY GRAND MARQUIS, WHILE MY FOOT WAS ON THE BRAKE, SLOWING THE VEHICLE. THIS HAPPENED TWICE IN THE PAST 3 DAYS. SECOND INCIDENT OCCURRED OCT. 31, 2008. EACH INCIDENT NEARLY CAUSED MY VEHICLE TO STRIKE ANOTHER VEHICLE. *TR

NHTSA ODI #10247409

Official recalls

3

14V704000 · 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

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