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2004 Mercury Mountaineer

Owner reports · Recalls · Investigations

Similar to other model years

Owner complaints for the 2004 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

181 reports with mileage · 29 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.

  • Structure. Review the 79 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Power Train. Review the 64 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Vehicle Speed Control. Review the 21 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 reports2 fire reports15 injury reports

Structure complaints

79 reports
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40,000 miles · Feb 28, 2012
Structure

TL* THE CONTACT OWNS A 2004 MERCURY MOUNTAINEER. THE CONTACT STATED THAT THE CENTER PIECE EMBLEM OF THE HATCH BACK STARTED TO FRACTURE. THE VEHICLE WAS PREVIOUSLY REPAIRED WITH A NEW HATCH BACK DOOR APPROXIMATELY TWO YEARS PRIOR TO THE RECENT FAILURE. THE VEHICLE HAD NOT BEEN INSPECTED SINCE THE RECURRENCE OF THE FAILURE. THE MA…

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TL* THE CONTACT OWNS A 2004 MERCURY MOUNTAINEER. THE CONTACT STATED THAT THE CENTER PIECE EMBLEM OF THE HATCH BACK STARTED TO FRACTURE. THE VEHICLE WAS PREVIOUSLY REPAIRED WITH A NEW HATCH BACK DOOR APPROXIMATELY TWO YEARS PRIOR TO THE RECENT FAILURE. THE VEHICLE HAD NOT BEEN INSPECTED SINCE THE RECURRENCE OF THE FAILURE. THE MANUFACTURER WAS NOT CONTACTED. THE FAILURE MILEAGE WAS APPROXIMATELY 40,000. UPDATED 04/26/12 *BF UPDATED 05/10/12

NHTSA ODI #10449548

72,000 miles · Dec 6, 2011
Structure

CAME OUT ONE MORNING TO DISCOVER THE REAR HATCH HAD A CRACK AROUND THE EMBLEM OF MY 2004 MERCURY MOUNTAINEER. CAR WAS PARKED IN DRIVEWAY AND WAS NOT HIT OR INVOLVED IN AN ACCIDENT. STARTED NOTICING THAT EVERY MERCURY MOUNTAINEER OF THE SAME BODY TYPE HAD SIMILAR CRACKS IN THE SAME LOCATION. CONTACTED FORD BUT DID NOT HAVE VIN…

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CAME OUT ONE MORNING TO DISCOVER THE REAR HATCH HAD A CRACK AROUND THE EMBLEM OF MY 2004 MERCURY MOUNTAINEER. CAR WAS PARKED IN DRIVEWAY AND WAS NOT HIT OR INVOLVED IN AN ACCIDENT. STARTED NOTICING THAT EVERY MERCURY MOUNTAINEER OF THE SAME BODY TYPE HAD SIMILAR CRACKS IN THE SAME LOCATION. CONTACTED FORD BUT DID NOT HAVE VIN #. EVENTUALLY CONTACTED FORD AGAIN WITH VIN # AND WAS TOLD THERE WAS NO RECALL AND THAT FORD WAS NOT ACCEPTING ANY RESPONSIBILITY . I TOLD FORD THAT IT IS AN OBVIOUS DEFECT TO NO AVAIL. I WILL NEVER BUY ANOTHER FORD PRODUCT IF THIS IS HOW THEY TREAT THEIR CUSTOMERS. THIS SHOULD BE A RECALL AND FORD SHOULD REPAIR THIS DEFECT. THE VALUE OF MY CAR HAS DECREASED BECAUSE OF THIS. I GOT A $500.00 ESTIMATE TO REPAIR IT BUT WAS TOLD IT WOULD PROBABLY HAPPEN AGAIN. *TR

NHTSA ODI #10438753

64,000 miles · Nov 27, 2011
Power TrainStructure

BEING HAVING PROBLEMS WITH REAR LIFT GATE [ NOT STAYING CLOSE, OPENS ANYTIME, IT WANTS TO BY ITSELF. MY TRANSMISSION PROBLEMS ERRATIC SHIFTING, HARD SHIFTING UP AND DOWN SHIFTING AND IN AND OUT SHIFTING ON REVERSE FROM PARK TO REVERSE PULLS VERY HARD. WHEN I BOUGHT THE CAR I TOLD THEM THEY LOOKED AT LIKE I D…

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BEING HAVING PROBLEMS WITH REAR LIFT GATE [ NOT STAYING CLOSE, OPENS ANYTIME, IT WANTS TO BY ITSELF. MY TRANSMISSION PROBLEMS ERRATIC SHIFTING, HARD SHIFTING UP AND DOWN SHIFTING AND IN AND OUT SHIFTING ON REVERSE FROM PARK TO REVERSE PULLS VERY HARD. WHEN I BOUGHT THE CAR I TOLD THEM THEY LOOKED AT LIKE I DIDN'T KNOW WHAT I WAS SAYING THEY MADE AN APPOINTMENT FOR MECHANIC TO CHECK IT AND SAID IT WAS GOOD BUT IT WASN'T. I HAVE 84,000 MILES ON IT NEVER PULL A TRAILER WITH IT I'VE MADE 38 PAYMENTS ON IT. WHY DOES FORD PUTS A PRODUCT LIKE THAT AND ASKS ALOT OF MONEY FOR THE CAR THAT CAN'T EVEN MAKE TO 100,000 MILES THEY SHOULD BE OUT OF ACT. HOPE FORD WILL TAKE CARE OF THIS CARS. *TR

NHTSA ODI #10437405

74,000 miles · Oct 11, 2011
Structure

WIFE WAS CLOSING LIFTGATE AND IT BROKE FROM THE HINGES. THE LEFT SIDE FELL AND HIT HER ON THE HEAD. WAS TRYING TO HOLD LIFT GATE SO GLASS WOULDN'T FALL AND BREAK. CALLED FORD AND THEY SAID IT WAS NOT A RECALL ISSUE. LOOKING ONLINE IT SEEMS THIS HAPPENS A LOT. *KB

NHTSA ODI #10429452

53,000 miles · Jul 5, 2011
Structure

2004 MERCURY MOUNTAINEER, REAR HATCH MOLDING WITH MERCURY EMBLEM. TWO WINTERS AGO THE MOLDING CRACKED AFTER A VERY COLD FREEZE. VEHICLE WAS UNDER WARRANTY AND THE ENTIRE HATCH HAD TO BE REPLACED. DEALER HAD VEHICLE 3 OR 4 DAYS AS NEW HATCH WAS SENT OUT TO A LOCAL BODY SHOP TO BE PAINTED, MATCHING THE VEHICLE COLOR. NOW, THE …

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2004 MERCURY MOUNTAINEER, REAR HATCH MOLDING WITH MERCURY EMBLEM. TWO WINTERS AGO THE MOLDING CRACKED AFTER A VERY COLD FREEZE. VEHICLE WAS UNDER WARRANTY AND THE ENTIRE HATCH HAD TO BE REPLACED. DEALER HAD VEHICLE 3 OR 4 DAYS AS NEW HATCH WAS SENT OUT TO A LOCAL BODY SHOP TO BE PAINTED, MATCHING THE VEHICLE COLOR. NOW, THE SAME MOLDING HAS BEGUN DE-LAMINATING FROM THE HATCH. DEALER STATES HATCH HAS TO BE REPLACED AND WILL COST $1000.00. *KB

NHTSA ODI #10410585

120,000 miles · Jun 22, 2011
Structure

TL* THE CONTACT OWNS A 2004 MERCURY MOUNTAINEER. THE CONTACT STATED THE LIFT GATE GLASS HINGE DISENGAGED AND IMPACTED HER ABILITY TO DRIVE. THE CONTACT DID NOT SUSTAIN ANY INJURIES. THE VEHICLE WAS NOT TAKEN TO THE DEALER FOR DIAGNOSTIC TESTING. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE …

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TL* THE CONTACT OWNS A 2004 MERCURY MOUNTAINEER. THE CONTACT STATED THE LIFT GATE GLASS HINGE DISENGAGED AND IMPACTED HER ABILITY TO DRIVE. THE CONTACT DID NOT SUSTAIN ANY INJURIES. THE VEHICLE WAS NOT TAKEN TO THE DEALER FOR DIAGNOSTIC TESTING. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE AND CURRENT MILEAGE WAS 120,000.

NHTSA ODI #10408565

70,000 miles · Jun 22, 2011
Electrical SystemEngine And Engine CoolingPower TrainCrash

I HAVE A USED 2004 MERCURY MOUNTAINEER I PURCHASED IN 12/2008 IT HAD 53,000 MILES. I HAVE DONE ALL OF THE REQUIRED MAINTENANCE OIL CHANGES,BRAKE PADS,FLUID CHANGES, AND 60,000-MILE SERVICE PACKAGE. I HAVE NOTHING BUT PROBLEMS WITH THE VEHICLE. THE FAILURES I HAVE ARE AS FOLLOWS: 1. FRONT/REAR BRAKE PADS,FRONT/REAR ROTORS,SPA…

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I HAVE A USED 2004 MERCURY MOUNTAINEER I PURCHASED IN 12/2008 IT HAD 53,000 MILES. I HAVE DONE ALL OF THE REQUIRED MAINTENANCE OIL CHANGES,BRAKE PADS,FLUID CHANGES, AND 60,000-MILE SERVICE PACKAGE. I HAVE NOTHING BUT PROBLEMS WITH THE VEHICLE. THE FAILURES I HAVE ARE AS FOLLOWS: 1. FRONT/REAR BRAKE PADS,FRONT/REAR ROTORS,SPARK PLUGS,-DEFECTED PARTS 2. BATTERY 3. TIRES-CONSTANT FLATS 4. LUG TORQUE-DRIVER FRONT/REAR 5. HOOD SHOCKS,TIRE PRESSURE SENSOR LIGHT 6. TRANSMISSION FLUID LEAK/ FRONT PUMP SEAL LEAK 7. NOISE AT HARMONIC BALANCER 8. ROAR NOISE AND SHAKES AT ALL SPEEDS 9. HUB ASSEMBLIES MAKING NOISE FRONT LEFT/RIGHT SIDE; UNLESS REPLACED VEHICLE UNSAFE TO DRIVE PER FORD DEALERSHIP 10. BRAKE PADS- FRONT/REAR NEED TO BE REPLACED GOING BAD (SECOND TIME NEEDING TO BE REPLACED) 11. NEEDS FRONT ALIGNMENT-PULLS TO THE RIGHT SIDE 12. FUEL FILTER 13. NEEDS ALL NEW TIRES 14. IGNITION COIL -DEFECTIVE NEEDS TO BE REPLACED 15. VEHICLE GEAR SHIFTER IS STUCK WHILE DRIVING WON'T SHIFT AT ALL SOMETIMES STAYS STUCK AT CERTAIN SPEED WON'T MOVE 16.UNIVERSAL JOINTS 17. AXLE HOUSING GASKET REPAIRS AND CORRECTIONS DONE ON VEHICLE: 1.NEW BRAKE PADS ON FRONT/REAR,REPLACED SPARK PLUGS, RESURFACED FRONT/REAR ROTORS.- 8/2009 2.BATTERY REPLACED- 4/2010 3.TIRES-FLATS REPAIRED/PATCHED -8/2010,11/2010,2/2011 4.HAVE NOT REPAIRED/REPLACED 5.HAVE NOT REPAIRED/REPLACED 6.REPLACED SEAL, TRANSMISSION FILTER AND FLUID CHANGED,REPLACED SEAL-OIL-6/2011 7.HAVE NOT REPAIRED/REPLACED 8. VEHICLE IS SHAKING AND LOUD ROAR NOISE HASN'T BEEN FIXED-6/2011 9.HUB ASSEMBLIES FRONT LEFT/RIGHT SIDE REPLACED -6/2011 10.HAVE NOT REPLACED/REPAIRED 11.HAVE NOT REPLACED/REPAIRED 12.FUEL FILTER REPLACED-6/2011 13. BOUGHT BRAND NEW SET OF TIRES -6/2011 14.IGNITION COIL REPLACED-10/2009 15. HAVE NOT REPAIRED/REPLACED 16. HAVE NOT REPAIRED/REPLACED 17. AXLE HOUSING GASKET REPLACED-04/2011. *TR

NHTSA ODI #10408434

45,000 miles · Apr 10, 2011
Structure

THE REAR PANEL IS CRACKED AROUND THE LOGO OF MY MERCURY MOUNTAINEER. I SEE THIS ON MOST OTHER MOUNTAINEERS AND EXPLORERS FROM THIS GENERATION AND FORD HAS DONE NOTHING TO REMEDY IT. *TR

NHTSA ODI #10395395

51,029 miles · Apr 6, 2011
Structure

TL* THE CONTACT OWNS A 2004 MERCURY MOUNTAINEER. THE CONTACT STATED THAT THE REAR LIFTGATE WAS FRACTURED FROM THE DECAL UP TO THE MIDDLE OF THE REAR GLASS. THE VEHICLE WAS NEITHER INSPECTED NOR REPAIRED FOR THE FAILURE. THE MANUFACTURER HAD NOT BEEN NOTIFIED. THE CURRENT AND FAILURE MILEAGE WAS 51,029.

NHTSA ODI #10394390

85,000 miles · Mar 21, 2011
Structure

TL* THE CONTACT OWNS A 2004 MERCURY MOUNTAINEER. THE VEHICLE WAS PARKED WHEN THE CONTACT NOTICED THAT THERE WAS A LARGE CRACK ON THE REAR LIFT-GATE DOOR PANEL. THE VEHICLE WAS NOT TAKEN TO THE DEALER FOR DIAGNOSTIC TESTING. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 85,000. THE CURRENT MILEAGE WAS 98,000. THE VIN WAS…

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TL* THE CONTACT OWNS A 2004 MERCURY MOUNTAINEER. THE VEHICLE WAS PARKED WHEN THE CONTACT NOTICED THAT THERE WAS A LARGE CRACK ON THE REAR LIFT-GATE DOOR PANEL. THE VEHICLE WAS NOT TAKEN TO THE DEALER FOR DIAGNOSTIC TESTING. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 85,000. THE CURRENT MILEAGE WAS 98,000. THE VIN WAS UNAVAILABLE.

NHTSA ODI #10392333

Official recalls

0

No recalls in this snapshot.

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

3

EA09013 · Vehicle Rollaway Allegations

Opened Aug 18, 2009 · Closed Feb 12, 2013

Status: closed (inferred from source dates) · Power Train:automatic Transmission:gear Position Indication (prndl); Power Train:automatic Transmission:lever And Linkage:column Shift; Steering; Steering:column; Steering:column LOCKING:ANTI-THEFT Device

This investigation is being closed based on several considerations.By the most inclusive counting of all alleged rollaway incidents (i.e., counting all alleged rollaway incidents and assuming a singular failure mechanism), the incident rate is low, however during EA09-013, ODI identified a number of different failure mechanisms in 180 incidents related to the alleged defect.The highest rate for any particular failure mechanism, the failure of the Automatic Transmission Parking System, was 4.4/100K.The next-highest failure rate was for the BSI System, at 3.4/100K.For all identified failure mechanisms there has been a drastically declining trend including very few incidents occurring in recent years.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.For additional information regarding this investigation, see the complete closing resume in the document file for EA09-013. The ODI reports cited above can be reviewed at www-odi.nhtsa.dot.gov/owners/SearchNHTSAID under the following identification (ODI) numbers:10168454, 10279630, 10280078.

Additional source detail variants (5)

Power Train:automatic Transmission:gear Position Indication (prndl)

This investigation is being closed based on several considerations.By the most inclusive counting of all alleged rollaway incidents (i.e., counting all alleged rollaway incidents and assuming a singular failure mechanism), the incident rate is low, however during EA09-013, ODI identified a number of different failure mechanisms in 180 incidents related to the alleged defect.The highest rate for any particular failure mechanism, the failure of the Automatic Transmission Parking System, was 4.4/100K.The next-highest failure rate was for the BSI System, at 3.4/100K.For all identified failure mechanisms there has been a drastically declining trend including very few incidents occurring in recent years.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.For additional information regarding this investigation, see the complete closing resume in the document file for EA09-013. The ODI reports cited above can be reviewed at www-odi.nhtsa.dot.gov/owners/SearchNHTSAID under the following identification (ODI) numbers:10168454, 10279630, 10280078.

Power Train:automatic Transmission:lever And Linkage:column Shift

This investigation is being closed based on several considerations.By the most inclusive counting of all alleged rollaway incidents (i.e., counting all alleged rollaway incidents and assuming a singular failure mechanism), the incident rate is low, however during EA09-013, ODI identified a number of different failure mechanisms in 180 incidents related to the alleged defect.The highest rate for any particular failure mechanism, the failure of the Automatic Transmission Parking System, was 4.4/100K.The next-highest failure rate was for the BSI System, at 3.4/100K.For all identified failure mechanisms there has been a drastically declining trend including very few incidents occurring in recent years.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.For additional information regarding this investigation, see the complete closing resume in the document file for EA09-013. The ODI reports cited above can be reviewed at www-odi.nhtsa.dot.gov/owners/SearchNHTSAID under the following identification (ODI) numbers:10168454, 10279630, 10280078.

Steering:column

This investigation is being closed based on several considerations.By the most inclusive counting of all alleged rollaway incidents (i.e., counting all alleged rollaway incidents and assuming a singular failure mechanism), the incident rate is low, however during EA09-013, ODI identified a number of different failure mechanisms in 180 incidents related to the alleged defect.The highest rate for any particular failure mechanism, the failure of the Automatic Transmission Parking System, was 4.4/100K.The next-highest failure rate was for the BSI System, at 3.4/100K.For all identified failure mechanisms there has been a drastically declining trend including very few incidents occurring in recent years.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.For additional information regarding this investigation, see the complete closing resume in the document file for EA09-013. The ODI reports cited above can be reviewed at www-odi.nhtsa.dot.gov/owners/SearchNHTSAID under the following identification (ODI) numbers:10168454, 10279630, 10280078.

Steering:column LOCKING:ANTI-THEFT Device

This investigation is being closed based on several considerations.By the most inclusive counting of all alleged rollaway incidents (i.e., counting all alleged rollaway incidents and assuming a singular failure mechanism), the incident rate is low, however during EA09-013, ODI identified a number of different failure mechanisms in 180 incidents related to the alleged defect.The highest rate for any particular failure mechanism, the failure of the Automatic Transmission Parking System, was 4.4/100K.The next-highest failure rate was for the BSI System, at 3.4/100K.For all identified failure mechanisms there has been a drastically declining trend including very few incidents occurring in recent years.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.For additional information regarding this investigation, see the complete closing resume in the document file for EA09-013. The ODI reports cited above can be reviewed at www-odi.nhtsa.dot.gov/owners/SearchNHTSAID under the following identification (ODI) numbers:10168454, 10279630, 10280078.

Steering

This investigation is being closed based on several considerations.By the most inclusive counting of all alleged rollaway incidents (i.e., counting all alleged rollaway incidents and assuming a singular failure mechanism), the incident rate is low, however during EA09-013, ODI identified a number of different failure mechanisms in 180 incidents related to the alleged defect.The highest rate for any particular failure mechanism, the failure of the Automatic Transmission Parking System, was 4.4/100K.The next-highest failure rate was for the BSI System, at 3.4/100K.For all identified failure mechanisms there has been a drastically declining trend including very few incidents occurring in recent years.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.For additional information regarding this investigation, see the complete closing resume in the document file for EA09-013. The ODI reports cited above can be reviewed at www-odi.nhtsa.dot.gov/owners/SearchNHTSAID under the following identification (ODI) numbers:10168454, 10279630, 10280078.

RQ08003 · Rear Liftgate Glass Hatch Failure

Opened Jun 23, 2008 · Closed Oct 24, 2008

Status: closed (inferred from source dates) · Structure:body:hatchback/liftgate; Structure:body:hatchback/liftgate:hinge And Attachments; Structure:body:hatchback/liftgate:support Device/strut; Visibility:glass, Side/rear

THIS INVESTIGATION WAS OPENED ON JUNE 23, 2008, BASED ON 34 COMPLAINTS INVOLVING EIGHT INJURIES IN WHICH THE REAR LIFTGATE GLASS HATCH ON MODEL YEAR 2004 FORD EXPLORERS OR MERCURY MOUNTAINEERS BROKE OFF AND FELL, USUALLY WHILE INDIVIDUALS WERE OPERATING THE GLASS HATCH OR LOADING OR UNLOADING ITEMS FROM THE REAR OF THE VEHICLE.FORD CONDUCTED RECALL 04V-442 IN 2004 TO ADDRESS SIMILAR PROBLEMS ON MODEL YEAR 2002 AND CERTAIN MODEL YEAR 2003 FORD EXPLORERS AND MERCURY MOUNTAINEERS.THE INFORMATION FORD PROVIDED IN RESPONSE TO ODI'S INFORMATION REQUEST LETTER INDICATED THAT FAILURES WITH 2004 VEHICLES WERE PRIMARILY LIFTGATE GLASS HATCH HINGE FAILURES RELATED TO CORROSION AT THE HINGE PIN, WHEREAS THE FAILURES THAT PROMPTED THE RECALL WITH THE EARLIER MODELS WERE PRIMARILY RELATED TO PROBLEMS WITH THE GLASS HATCH'S STRUTS OR FRACTURE OF A PRIOR HINGE DESIGN AT THE BOSS/BOLT CONNECTION AT THE GLASS.ODI'S REVIEW OF FORD'S WARRANTY, COMPLAINT, AND INJURY DATA FOR THE 2004 VEHICLES INDICATES THAT THESE RATES ARE SIGNIFICANTLY LOWER THAN THOSE FOR THE RECALLED POPULATION.A POTENTIAL DEFECT TREND HAS NOT BEEN IDENTIFIED AT THIS TIME.ODI WILL CONTINUE TO MONITOR COMPLAINTS AND TAKE APPROPRIATE ACTION AS NECESSARY.THIS INVESTIGATION IS CLOSED.

Additional source detail variants (4)

Structure:body:hatchback/liftgate

THIS INVESTIGATION WAS OPENED ON JUNE 23, 2008, BASED ON 34 COMPLAINTS INVOLVING EIGHT INJURIES IN WHICH THE REAR LIFTGATE GLASS HATCH ON MODEL YEAR 2004 FORD EXPLORERS OR MERCURY MOUNTAINEERS BROKE OFF AND FELL, USUALLY WHILE INDIVIDUALS WERE OPERATING THE GLASS HATCH OR LOADING OR UNLOADING ITEMS FROM THE REAR OF THE VEHICLE.FORD CONDUCTED RECALL 04V-442 IN 2004 TO ADDRESS SIMILAR PROBLEMS ON MODEL YEAR 2002 AND CERTAIN MODEL YEAR 2003 FORD EXPLORERS AND MERCURY MOUNTAINEERS.THE INFORMATION FORD PROVIDED IN RESPONSE TO ODI'S INFORMATION REQUEST LETTER INDICATED THAT FAILURES WITH 2004 VEHICLES WERE PRIMARILY LIFTGATE GLASS HATCH HINGE FAILURES RELATED TO CORROSION AT THE HINGE PIN, WHEREAS THE FAILURES THAT PROMPTED THE RECALL WITH THE EARLIER MODELS WERE PRIMARILY RELATED TO PROBLEMS WITH THE GLASS HATCH'S STRUTS OR FRACTURE OF A PRIOR HINGE DESIGN AT THE BOSS/BOLT CONNECTION AT THE GLASS.ODI'S REVIEW OF FORD'S WARRANTY, COMPLAINT, AND INJURY DATA FOR THE 2004 VEHICLES INDICATES THAT THESE RATES ARE SIGNIFICANTLY LOWER THAN THOSE FOR THE RECALLED POPULATION.A POTENTIAL DEFECT TREND HAS NOT BEEN IDENTIFIED AT THIS TIME.ODI WILL CONTINUE TO MONITOR COMPLAINTS AND TAKE APPROPRIATE ACTION AS NECESSARY.THIS INVESTIGATION IS CLOSED.

Structure:body:hatchback/liftgate:hinge And Attachments

THIS INVESTIGATION WAS OPENED ON JUNE 23, 2008, BASED ON 34 COMPLAINTS INVOLVING EIGHT INJURIES IN WHICH THE REAR LIFTGATE GLASS HATCH ON MODEL YEAR 2004 FORD EXPLORERS OR MERCURY MOUNTAINEERS BROKE OFF AND FELL, USUALLY WHILE INDIVIDUALS WERE OPERATING THE GLASS HATCH OR LOADING OR UNLOADING ITEMS FROM THE REAR OF THE VEHICLE.FORD CONDUCTED RECALL 04V-442 IN 2004 TO ADDRESS SIMILAR PROBLEMS ON MODEL YEAR 2002 AND CERTAIN MODEL YEAR 2003 FORD EXPLORERS AND MERCURY MOUNTAINEERS.THE INFORMATION FORD PROVIDED IN RESPONSE TO ODI'S INFORMATION REQUEST LETTER INDICATED THAT FAILURES WITH 2004 VEHICLES WERE PRIMARILY LIFTGATE GLASS HATCH HINGE FAILURES RELATED TO CORROSION AT THE HINGE PIN, WHEREAS THE FAILURES THAT PROMPTED THE RECALL WITH THE EARLIER MODELS WERE PRIMARILY RELATED TO PROBLEMS WITH THE GLASS HATCH'S STRUTS OR FRACTURE OF A PRIOR HINGE DESIGN AT THE BOSS/BOLT CONNECTION AT THE GLASS.ODI'S REVIEW OF FORD'S WARRANTY, COMPLAINT, AND INJURY DATA FOR THE 2004 VEHICLES INDICATES THAT THESE RATES ARE SIGNIFICANTLY LOWER THAN THOSE FOR THE RECALLED POPULATION.A POTENTIAL DEFECT TREND HAS NOT BEEN IDENTIFIED AT THIS TIME.ODI WILL CONTINUE TO MONITOR COMPLAINTS AND TAKE APPROPRIATE ACTION AS NECESSARY.THIS INVESTIGATION IS CLOSED.

Structure:body:hatchback/liftgate:support Device/strut

THIS INVESTIGATION WAS OPENED ON JUNE 23, 2008, BASED ON 34 COMPLAINTS INVOLVING EIGHT INJURIES IN WHICH THE REAR LIFTGATE GLASS HATCH ON MODEL YEAR 2004 FORD EXPLORERS OR MERCURY MOUNTAINEERS BROKE OFF AND FELL, USUALLY WHILE INDIVIDUALS WERE OPERATING THE GLASS HATCH OR LOADING OR UNLOADING ITEMS FROM THE REAR OF THE VEHICLE.FORD CONDUCTED RECALL 04V-442 IN 2004 TO ADDRESS SIMILAR PROBLEMS ON MODEL YEAR 2002 AND CERTAIN MODEL YEAR 2003 FORD EXPLORERS AND MERCURY MOUNTAINEERS.THE INFORMATION FORD PROVIDED IN RESPONSE TO ODI'S INFORMATION REQUEST LETTER INDICATED THAT FAILURES WITH 2004 VEHICLES WERE PRIMARILY LIFTGATE GLASS HATCH HINGE FAILURES RELATED TO CORROSION AT THE HINGE PIN, WHEREAS THE FAILURES THAT PROMPTED THE RECALL WITH THE EARLIER MODELS WERE PRIMARILY RELATED TO PROBLEMS WITH THE GLASS HATCH'S STRUTS OR FRACTURE OF A PRIOR HINGE DESIGN AT THE BOSS/BOLT CONNECTION AT THE GLASS.ODI'S REVIEW OF FORD'S WARRANTY, COMPLAINT, AND INJURY DATA FOR THE 2004 VEHICLES INDICATES THAT THESE RATES ARE SIGNIFICANTLY LOWER THAN THOSE FOR THE RECALLED POPULATION.A POTENTIAL DEFECT TREND HAS NOT BEEN IDENTIFIED AT THIS TIME.ODI WILL CONTINUE TO MONITOR COMPLAINTS AND TAKE APPROPRIATE ACTION AS NECESSARY.THIS INVESTIGATION IS CLOSED.

Visibility:glass, Side/rear

THIS INVESTIGATION WAS OPENED ON JUNE 23, 2008, BASED ON 34 COMPLAINTS INVOLVING EIGHT INJURIES IN WHICH THE REAR LIFTGATE GLASS HATCH ON MODEL YEAR 2004 FORD EXPLORERS OR MERCURY MOUNTAINEERS BROKE OFF AND FELL, USUALLY WHILE INDIVIDUALS WERE OPERATING THE GLASS HATCH OR LOADING OR UNLOADING ITEMS FROM THE REAR OF THE VEHICLE.FORD CONDUCTED RECALL 04V-442 IN 2004 TO ADDRESS SIMILAR PROBLEMS ON MODEL YEAR 2002 AND CERTAIN MODEL YEAR 2003 FORD EXPLORERS AND MERCURY MOUNTAINEERS.THE INFORMATION FORD PROVIDED IN RESPONSE TO ODI'S INFORMATION REQUEST LETTER INDICATED THAT FAILURES WITH 2004 VEHICLES WERE PRIMARILY LIFTGATE GLASS HATCH HINGE FAILURES RELATED TO CORROSION AT THE HINGE PIN, WHEREAS THE FAILURES THAT PROMPTED THE RECALL WITH THE EARLIER MODELS WERE PRIMARILY RELATED TO PROBLEMS WITH THE GLASS HATCH'S STRUTS OR FRACTURE OF A PRIOR HINGE DESIGN AT THE BOSS/BOLT CONNECTION AT THE GLASS.ODI'S REVIEW OF FORD'S WARRANTY, COMPLAINT, AND INJURY DATA FOR THE 2004 VEHICLES INDICATES THAT THESE RATES ARE SIGNIFICANTLY LOWER THAN THOSE FOR THE RECALLED POPULATION.A POTENTIAL DEFECT TREND HAS NOT BEEN IDENTIFIED AT THIS TIME.ODI WILL CONTINUE TO MONITOR COMPLAINTS AND TAKE APPROPRIATE ACTION AS NECESSARY.THIS INVESTIGATION IS CLOSED.

DP05005 · Spark Plug Ejection From Cylinder Head

Opened Sep 22, 2005 · Closed Jan 4, 2006

Status: closed (inferred from source dates) · Engine And Engine Cooling; Engine And Engine Cooling:engine; Engine And Engine Cooling:engine:gasoline

ON SEPTEMBER 6, 2005, ODI RECEIVED A PETITION REQUESTING THAT THE AGENCY INVESTIGATE ALLEGATIONS OF ENGINE SPARK PLUG EJECTION IN CERTAIN MODEL YEAR 1997 THROUGH 2004 FORD VEHICLES WITH TRITON V-8 AND V-10 ENGINES.ODI RECEIVED A TOTAL OF 474 NON-DUPLICATIVE COMPLAINTS ON THE SUBJECT VEHICLES WHERE THE COMPLAINANT, OR THE DEALER REPAIRING THE VEHICLE, REPORTED THAT A SPARK PLUG DETACHED FROM THE CYLINDER AND/OR EJECTED FROM THE ENGINE.AS OF DECEMBER 8, 2005, ODI IS NOT AWARE OF ANY ALLEGATIONS WHERE THE ALLEGED DEFECT RESULTED IN A LOSS OF VEHICLE CONTROL, A CRASH, AN INJURY, OR A FATALITY IN ANY OF THE 10,319,810 SUBJECT VEHICLES.IN ADDITION, ODI IS AWARE OF ONLY TWO INCIDENTS WHERE THE VEHICLE STALLED WITHOUT RESTART.INFORMATION CONTAINED IN THE ODI CONSUMER COMPLAINTS AND OBTAINED FROM 72 TELEPHONE INTERVIEWS WITH COMPLAINANTS SHOWED THE FOLLOWING:(1) 99% OF THE COMPLAINTS WERE ON MY 1997 TO 2002 SUBJECT VEHICLES.(2) MOST THE COMPLAINANTS REPORTED HEARING A LOUD POP WHILE DRIVING OR UPON STARTING UP THE VEHICLE FOLLOWED BY A LOUD, REPETITIVE CLICKING OR POPPING SOUND.(3) MANY OF THE COMPLAINANTS REPORTED THAT THE POPPING SOUND WAS ACCOMPANIED BY SOME LOSS OF VEHICLE POWER; HOWEVER, IN 99% OF THE INCIDENTS REPORTED, THE VEHICLE DID NOT STALL.IN THE VERY FEW INCIDENTS WHERE THE VEHICLE DID STALL, MOST VEHICLES COULD BE RESTARTED.(4) ONLY A SMALL PERCENTAGE OF THE COMPLAINANTS CITED THAT THEY SMELLED GAS OR A SLIGHT BURNING SMELL WHEN THE INCIDENT OCCURRED.(5) IN ALL BUT A VERY FEW INCIDENTS, VEHICLE DAMAGE WAS LIMITED TO THE ENGINE.IN ONE INCIDENT, THE COMPLAINT REPORTED THAT THE FUEL RAIL WAS DAMAGED AND REPLACED AFTER ONE OF THE SPARK PLUGS EJECTED FROM THE ENGINE; HOWEVER, THE COMPLAINANT REPORTED THAT THE DAMAGE DID NOT RESULT IN ANY TYPE OF FUEL LEAK OR FIRE.IN ANOTHER INCIDENT, THE ONLY INCIDENT WHERE A FIRE WAS ALLEGED, THE COMPLAINANT REPORTED THAT NO FLUID LEAK WAS OBSERVED, BUT THAT A FIRE RESULTED AFTER THE SPARK PLUG HAD EJECTED FROM THE ENGINE AND HE HAD RESTARTED THE VEHICLE AND DRIVEN TO ANOTHER LOCATION.NONE OF THE COMPLAINANTS REPORTED ANY DAMAGE TO THE VEHICLE HOOD.(6) ONLY TWO COMPLAINANTS REPORTED THAT THEY OBSERVED WHAT APPEARED TO BE SOME DROPS OF FUEL COMING FROM THE CYLINDER WHERE THE SPARK PLUG HAD FAILED OR ON THE SPARK PLUG ITSELF; HOWEVER, EACH OF THESE COMPLAINANTS REPORTED THAT THERE WAS NO SMOKE OR FLAMES AS A RESULT OF HIS INCIDENT.AS THE PETITIONER NOTED, AND ODI?S ANALYSIS SHOWED, IT IS POSSIBLE FOR A SPARK PLUG TO DETACH FROM THE ENGINE CYLINDER THREADS IN THE SUBJECT VEHICLES.HOWEVER, ODI?S ANALYSIS OF 474 COMPLAINTS DESCRIBING SUCH INCIDENTS FOUND ONLY A VERY FEW ALLEGED ANY SAFETY-RELATED CONSEQUENCES.NONE OF THESE SHOWED ANY EVIDENCE OF A SERIOUS SAFETY CONSEQUENCE.GIVEN THE LARGE POPULATION AND RELATIVELY LONG EXPOSURE TIME OF THE SUBJECT VEHICLES, THE COMPLAINT ANALYSIS INDICATES THAT THE RISK TO MOTOR VEHICLE SAFETY FROM THE ALLEGED DEFECT IS VERY LOW.IN VIEW OF THE FOREGOING, IT IS UNLIKELY THAT NHTSA WOULD ISSUE AN ORDER FOR THE NOTIFICATION AND REMEDY OF THE ALLEGED DEFECT AT THE CONCLUSION OF THE INVESTIGATION REQUESTED IN THE PETITION.THEREFORE, IN VIEW OF THE NEED TO ALLOCATE AND PRIORITIZE NHTSA?S LIMITED RESOURCES TO BEST ACCOMPLISH THE AGENCY?S SAFETY MISSION, THE PETITION IS DENIED.

Additional source detail variants (3)

Engine And Engine Cooling:engine

ON SEPTEMBER 6, 2005, ODI RECEIVED A PETITION REQUESTING THAT THE AGENCY INVESTIGATE ALLEGATIONS OF ENGINE SPARK PLUG EJECTION IN CERTAIN MODEL YEAR 1997 THROUGH 2004 FORD VEHICLES WITH TRITON V-8 AND V-10 ENGINES.ODI RECEIVED A TOTAL OF 474 NON-DUPLICATIVE COMPLAINTS ON THE SUBJECT VEHICLES WHERE THE COMPLAINANT, OR THE DEALER REPAIRING THE VEHICLE, REPORTED THAT A SPARK PLUG DETACHED FROM THE CYLINDER AND/OR EJECTED FROM THE ENGINE.AS OF DECEMBER 8, 2005, ODI IS NOT AWARE OF ANY ALLEGATIONS WHERE THE ALLEGED DEFECT RESULTED IN A LOSS OF VEHICLE CONTROL, A CRASH, AN INJURY, OR A FATALITY IN ANY OF THE 10,319,810 SUBJECT VEHICLES.IN ADDITION, ODI IS AWARE OF ONLY TWO INCIDENTS WHERE THE VEHICLE STALLED WITHOUT RESTART.INFORMATION CONTAINED IN THE ODI CONSUMER COMPLAINTS AND OBTAINED FROM 72 TELEPHONE INTERVIEWS WITH COMPLAINANTS SHOWED THE FOLLOWING:(1) 99% OF THE COMPLAINTS WERE ON MY 1997 TO 2002 SUBJECT VEHICLES.(2) MOST THE COMPLAINANTS REPORTED HEARING A LOUD POP WHILE DRIVING OR UPON STARTING UP THE VEHICLE FOLLOWED BY A LOUD, REPETITIVE CLICKING OR POPPING SOUND.(3) MANY OF THE COMPLAINANTS REPORTED THAT THE POPPING SOUND WAS ACCOMPANIED BY SOME LOSS OF VEHICLE POWER; HOWEVER, IN 99% OF THE INCIDENTS REPORTED, THE VEHICLE DID NOT STALL.IN THE VERY FEW INCIDENTS WHERE THE VEHICLE DID STALL, MOST VEHICLES COULD BE RESTARTED.(4) ONLY A SMALL PERCENTAGE OF THE COMPLAINANTS CITED THAT THEY SMELLED GAS OR A SLIGHT BURNING SMELL WHEN THE INCIDENT OCCURRED.(5) IN ALL BUT A VERY FEW INCIDENTS, VEHICLE DAMAGE WAS LIMITED TO THE ENGINE.IN ONE INCIDENT, THE COMPLAINT REPORTED THAT THE FUEL RAIL WAS DAMAGED AND REPLACED AFTER ONE OF THE SPARK PLUGS EJECTED FROM THE ENGINE; HOWEVER, THE COMPLAINANT REPORTED THAT THE DAMAGE DID NOT RESULT IN ANY TYPE OF FUEL LEAK OR FIRE.IN ANOTHER INCIDENT, THE ONLY INCIDENT WHERE A FIRE WAS ALLEGED, THE COMPLAINANT REPORTED THAT NO FLUID LEAK WAS OBSERVED, BUT THAT A FIRE RESULTED AFTER THE SPARK PLUG HAD EJECTED FROM THE ENGINE AND HE HAD RESTARTED THE VEHICLE AND DRIVEN TO ANOTHER LOCATION.NONE OF THE COMPLAINANTS REPORTED ANY DAMAGE TO THE VEHICLE HOOD.(6) ONLY TWO COMPLAINANTS REPORTED THAT THEY OBSERVED WHAT APPEARED TO BE SOME DROPS OF FUEL COMING FROM THE CYLINDER WHERE THE SPARK PLUG HAD FAILED OR ON THE SPARK PLUG ITSELF; HOWEVER, EACH OF THESE COMPLAINANTS REPORTED THAT THERE WAS NO SMOKE OR FLAMES AS A RESULT OF HIS INCIDENT.AS THE PETITIONER NOTED, AND ODI?S ANALYSIS SHOWED, IT IS POSSIBLE FOR A SPARK PLUG TO DETACH FROM THE ENGINE CYLINDER THREADS IN THE SUBJECT VEHICLES.HOWEVER, ODI?S ANALYSIS OF 474 COMPLAINTS DESCRIBING SUCH INCIDENTS FOUND ONLY A VERY FEW ALLEGED ANY SAFETY-RELATED CONSEQUENCES.NONE OF THESE SHOWED ANY EVIDENCE OF A SERIOUS SAFETY CONSEQUENCE.GIVEN THE LARGE POPULATION AND RELATIVELY LONG EXPOSURE TIME OF THE SUBJECT VEHICLES, THE COMPLAINT ANALYSIS INDICATES THAT THE RISK TO MOTOR VEHICLE SAFETY FROM THE ALLEGED DEFECT IS VERY LOW.IN VIEW OF THE FOREGOING, IT IS UNLIKELY THAT NHTSA WOULD ISSUE AN ORDER FOR THE NOTIFICATION AND REMEDY OF THE ALLEGED DEFECT AT THE CONCLUSION OF THE INVESTIGATION REQUESTED IN THE PETITION.THEREFORE, IN VIEW OF THE NEED TO ALLOCATE AND PRIORITIZE NHTSA?S LIMITED RESOURCES TO BEST ACCOMPLISH THE AGENCY?S SAFETY MISSION, THE PETITION IS DENIED.

Engine And Engine Cooling:engine:gasoline

ON SEPTEMBER 6, 2005, ODI RECEIVED A PETITION REQUESTING THAT THE AGENCY INVESTIGATE ALLEGATIONS OF ENGINE SPARK PLUG EJECTION IN CERTAIN MODEL YEAR 1997 THROUGH 2004 FORD VEHICLES WITH TRITON V-8 AND V-10 ENGINES.ODI RECEIVED A TOTAL OF 474 NON-DUPLICATIVE COMPLAINTS ON THE SUBJECT VEHICLES WHERE THE COMPLAINANT, OR THE DEALER REPAIRING THE VEHICLE, REPORTED THAT A SPARK PLUG DETACHED FROM THE CYLINDER AND/OR EJECTED FROM THE ENGINE.AS OF DECEMBER 8, 2005, ODI IS NOT AWARE OF ANY ALLEGATIONS WHERE THE ALLEGED DEFECT RESULTED IN A LOSS OF VEHICLE CONTROL, A CRASH, AN INJURY, OR A FATALITY IN ANY OF THE 10,319,810 SUBJECT VEHICLES.IN ADDITION, ODI IS AWARE OF ONLY TWO INCIDENTS WHERE THE VEHICLE STALLED WITHOUT RESTART.INFORMATION CONTAINED IN THE ODI CONSUMER COMPLAINTS AND OBTAINED FROM 72 TELEPHONE INTERVIEWS WITH COMPLAINANTS SHOWED THE FOLLOWING:(1) 99% OF THE COMPLAINTS WERE ON MY 1997 TO 2002 SUBJECT VEHICLES.(2) MOST THE COMPLAINANTS REPORTED HEARING A LOUD POP WHILE DRIVING OR UPON STARTING UP THE VEHICLE FOLLOWED BY A LOUD, REPETITIVE CLICKING OR POPPING SOUND.(3) MANY OF THE COMPLAINANTS REPORTED THAT THE POPPING SOUND WAS ACCOMPANIED BY SOME LOSS OF VEHICLE POWER; HOWEVER, IN 99% OF THE INCIDENTS REPORTED, THE VEHICLE DID NOT STALL.IN THE VERY FEW INCIDENTS WHERE THE VEHICLE DID STALL, MOST VEHICLES COULD BE RESTARTED.(4) ONLY A SMALL PERCENTAGE OF THE COMPLAINANTS CITED THAT THEY SMELLED GAS OR A SLIGHT BURNING SMELL WHEN THE INCIDENT OCCURRED.(5) IN ALL BUT A VERY FEW INCIDENTS, VEHICLE DAMAGE WAS LIMITED TO THE ENGINE.IN ONE INCIDENT, THE COMPLAINT REPORTED THAT THE FUEL RAIL WAS DAMAGED AND REPLACED AFTER ONE OF THE SPARK PLUGS EJECTED FROM THE ENGINE; HOWEVER, THE COMPLAINANT REPORTED THAT THE DAMAGE DID NOT RESULT IN ANY TYPE OF FUEL LEAK OR FIRE.IN ANOTHER INCIDENT, THE ONLY INCIDENT WHERE A FIRE WAS ALLEGED, THE COMPLAINANT REPORTED THAT NO FLUID LEAK WAS OBSERVED, BUT THAT A FIRE RESULTED AFTER THE SPARK PLUG HAD EJECTED FROM THE ENGINE AND HE HAD RESTARTED THE VEHICLE AND DRIVEN TO ANOTHER LOCATION.NONE OF THE COMPLAINANTS REPORTED ANY DAMAGE TO THE VEHICLE HOOD.(6) ONLY TWO COMPLAINANTS REPORTED THAT THEY OBSERVED WHAT APPEARED TO BE SOME DROPS OF FUEL COMING FROM THE CYLINDER WHERE THE SPARK PLUG HAD FAILED OR ON THE SPARK PLUG ITSELF; HOWEVER, EACH OF THESE COMPLAINANTS REPORTED THAT THERE WAS NO SMOKE OR FLAMES AS A RESULT OF HIS INCIDENT.AS THE PETITIONER NOTED, AND ODI?S ANALYSIS SHOWED, IT IS POSSIBLE FOR A SPARK PLUG TO DETACH FROM THE ENGINE CYLINDER THREADS IN THE SUBJECT VEHICLES.HOWEVER, ODI?S ANALYSIS OF 474 COMPLAINTS DESCRIBING SUCH INCIDENTS FOUND ONLY A VERY FEW ALLEGED ANY SAFETY-RELATED CONSEQUENCES.NONE OF THESE SHOWED ANY EVIDENCE OF A SERIOUS SAFETY CONSEQUENCE.GIVEN THE LARGE POPULATION AND RELATIVELY LONG EXPOSURE TIME OF THE SUBJECT VEHICLES, THE COMPLAINT ANALYSIS INDICATES THAT THE RISK TO MOTOR VEHICLE SAFETY FROM THE ALLEGED DEFECT IS VERY LOW.IN VIEW OF THE FOREGOING, IT IS UNLIKELY THAT NHTSA WOULD ISSUE AN ORDER FOR THE NOTIFICATION AND REMEDY OF THE ALLEGED DEFECT AT THE CONCLUSION OF THE INVESTIGATION REQUESTED IN THE PETITION.THEREFORE, IN VIEW OF THE NEED TO ALLOCATE AND PRIORITIZE NHTSA?S LIMITED RESOURCES TO BEST ACCOMPLISH THE AGENCY?S SAFETY MISSION, THE PETITION IS DENIED.

Engine And Engine Cooling

ON SEPTEMBER 6, 2005, ODI RECEIVED A PETITION REQUESTING THAT THE AGENCY INVESTIGATE ALLEGATIONS OF ENGINE SPARK PLUG EJECTION IN CERTAIN MODEL YEAR 1997 THROUGH 2004 FORD VEHICLES WITH TRITON V-8 AND V-10 ENGINES.ODI RECEIVED A TOTAL OF 474 NON-DUPLICATIVE COMPLAINTS ON THE SUBJECT VEHICLES WHERE THE COMPLAINANT, OR THE DEALER REPAIRING THE VEHICLE, REPORTED THAT A SPARK PLUG DETACHED FROM THE CYLINDER AND/OR EJECTED FROM THE ENGINE.AS OF DECEMBER 8, 2005, ODI IS NOT AWARE OF ANY ALLEGATIONS WHERE THE ALLEGED DEFECT RESULTED IN A LOSS OF VEHICLE CONTROL, A CRASH, AN INJURY, OR A FATALITY IN ANY OF THE 10,319,810 SUBJECT VEHICLES.IN ADDITION, ODI IS AWARE OF ONLY TWO INCIDENTS WHERE THE VEHICLE STALLED WITHOUT RESTART.INFORMATION CONTAINED IN THE ODI CONSUMER COMPLAINTS AND OBTAINED FROM 72 TELEPHONE INTERVIEWS WITH COMPLAINANTS SHOWED THE FOLLOWING:(1) 99% OF THE COMPLAINTS WERE ON MY 1997 TO 2002 SUBJECT VEHICLES.(2) MOST THE COMPLAINANTS REPORTED HEARING A LOUD POP WHILE DRIVING OR UPON STARTING UP THE VEHICLE FOLLOWED BY A LOUD, REPETITIVE CLICKING OR POPPING SOUND.(3) MANY OF THE COMPLAINANTS REPORTED THAT THE POPPING SOUND WAS ACCOMPANIED BY SOME LOSS OF VEHICLE POWER; HOWEVER, IN 99% OF THE INCIDENTS REPORTED, THE VEHICLE DID NOT STALL.IN THE VERY FEW INCIDENTS WHERE THE VEHICLE DID STALL, MOST VEHICLES COULD BE RESTARTED.(4) ONLY A SMALL PERCENTAGE OF THE COMPLAINANTS CITED THAT THEY SMELLED GAS OR A SLIGHT BURNING SMELL WHEN THE INCIDENT OCCURRED.(5) IN ALL BUT A VERY FEW INCIDENTS, VEHICLE DAMAGE WAS LIMITED TO THE ENGINE.IN ONE INCIDENT, THE COMPLAINT REPORTED THAT THE FUEL RAIL WAS DAMAGED AND REPLACED AFTER ONE OF THE SPARK PLUGS EJECTED FROM THE ENGINE; HOWEVER, THE COMPLAINANT REPORTED THAT THE DAMAGE DID NOT RESULT IN ANY TYPE OF FUEL LEAK OR FIRE.IN ANOTHER INCIDENT, THE ONLY INCIDENT WHERE A FIRE WAS ALLEGED, THE COMPLAINANT REPORTED THAT NO FLUID LEAK WAS OBSERVED, BUT THAT A FIRE RESULTED AFTER THE SPARK PLUG HAD EJECTED FROM THE ENGINE AND HE HAD RESTARTED THE VEHICLE AND DRIVEN TO ANOTHER LOCATION.NONE OF THE COMPLAINANTS REPORTED ANY DAMAGE TO THE VEHICLE HOOD.(6) ONLY TWO COMPLAINANTS REPORTED THAT THEY OBSERVED WHAT APPEARED TO BE SOME DROPS OF FUEL COMING FROM THE CYLINDER WHERE THE SPARK PLUG HAD FAILED OR ON THE SPARK PLUG ITSELF; HOWEVER, EACH OF THESE COMPLAINANTS REPORTED THAT THERE WAS NO SMOKE OR FLAMES AS A RESULT OF HIS INCIDENT.AS THE PETITIONER NOTED, AND ODI?S ANALYSIS SHOWED, IT IS POSSIBLE FOR A SPARK PLUG TO DETACH FROM THE ENGINE CYLINDER THREADS IN THE SUBJECT VEHICLES.HOWEVER, ODI?S ANALYSIS OF 474 COMPLAINTS DESCRIBING SUCH INCIDENTS FOUND ONLY A VERY FEW ALLEGED ANY SAFETY-RELATED CONSEQUENCES.NONE OF THESE SHOWED ANY EVIDENCE OF A SERIOUS SAFETY CONSEQUENCE.GIVEN THE LARGE POPULATION AND RELATIVELY LONG EXPOSURE TIME OF THE SUBJECT VEHICLES, THE COMPLAINT ANALYSIS INDICATES THAT THE RISK TO MOTOR VEHICLE SAFETY FROM THE ALLEGED DEFECT IS VERY LOW.IN VIEW OF THE FOREGOING, IT IS UNLIKELY THAT NHTSA WOULD ISSUE AN ORDER FOR THE NOTIFICATION AND REMEDY OF THE ALLEGED DEFECT AT THE CONCLUSION OF THE INVESTIGATION REQUESTED IN THE PETITION.THEREFORE, IN VIEW OF THE NEED TO ALLOCATE AND PRIORITIZE NHTSA?S LIMITED RESOURCES TO BEST ACCOMPLISH THE AGENCY?S SAFETY MISSION, THE PETITION IS DENIED.