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1998 Ford Explorer Sport

Owner reports · Recalls · Investigations

Similar to other model years

Owner complaints for the 1998 Ford Explorer Sport do not stand out strongly from the model-year median of 68.

About this comparison →

When problems were reported

Mileage at the reported incident

69 reports with mileage · 52 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.

  • Latches/locks/linkages. Review the 33 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Electrical System. Review the 18 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Seats. Review the 14 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

5 crash reports13 fire reports7 injury reports

Electrical System complaints

18 reports
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Mileage unknown · Apr 17, 2005
Electrical SystemFire

I HAVE A 1998 FORD EXPLORER SPORTS THAT CAUGHT ON FIRE WHILE THE ENGINE WAS OFF AND PARKED IN MY GARAGE. I PARKED THE CAR AT AROUND 7:00 PM AND AROUND AFTER 10:00 PM HEARD A LOUD EXPLOTION IN THE GARAGE. MY FAMILY WAS ALREADY IN BED AND I WAS WATCHING TV. WHEN I OPEN THE ACCESS DOOR TO THE GARAGE THE FRONT PART OF THE EXPLORER W…

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I HAVE A 1998 FORD EXPLORER SPORTS THAT CAUGHT ON FIRE WHILE THE ENGINE WAS OFF AND PARKED IN MY GARAGE. I PARKED THE CAR AT AROUND 7:00 PM AND AROUND AFTER 10:00 PM HEARD A LOUD EXPLOTION IN THE GARAGE. MY FAMILY WAS ALREADY IN BED AND I WAS WATCHING TV. WHEN I OPEN THE ACCESS DOOR TO THE GARAGE THE FRONT PART OF THE EXPLORER WAS IN FLAMES. WE CALLED 911 AND THE FIRE DEPARTMENT CAME AND PUT OUT THE FIRE, BUT THE CAR IS RUINED. MY SECOND CAR IS DAMAGED AND MY GARAGE IS ALSO DAMAGED. NO ONE WAS HURT BECAUSE WE GOT OUT OF THE HOUSE ON TIME.*AK

NHTSA ODI #10118006

Mileage unknown · Apr 10, 2005
Electrical System

I TOOK MY 1998 FORD EXPLORER SPORT TO MY LOCAL DEALERSHIP BECAUSE MY BRAKE LIGHTS WERE NOT WORKING (I CAN ONLY GUESS HOW LONG THEY WERE NOT OPERATING). AFTER DOING A DIAGNOSTIC THEY DETERMINED I HAD TO REPLACE MY (FORGIVE ME, AS I AM NOT MECHANICAL, BUT IT IS ALL ON MY RECEIPT) CRUISE CONTROL HARNESS AS THE COMPONENT HAD COMPLE…

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I TOOK MY 1998 FORD EXPLORER SPORT TO MY LOCAL DEALERSHIP BECAUSE MY BRAKE LIGHTS WERE NOT WORKING (I CAN ONLY GUESS HOW LONG THEY WERE NOT OPERATING). AFTER DOING A DIAGNOSTIC THEY DETERMINED I HAD TO REPLACE MY (FORGIVE ME, AS I AM NOT MECHANICAL, BUT IT IS ALL ON MY RECEIPT) CRUISE CONTROL HARNESS AS THE COMPONENT HAD COMPLETELY MELTED. MY CRUISE CONTROL HAD STOPPED WORKING A COUPLE OF MONTHS EARLIER, BUT I HAD NOT BOTHERED TO FIX IT. THE CRUISE CONTROL HAD GOTTEN SO HOT THAT IT BURNED A HOLE THROUGH MY MASTER CYLINDER SO THAT IT ALSO NEEDED TO BE REPLACED. I AM NOTIFYING YOU BECAUSE I FEEL MY AND MY FAMILY'S SAFETY WERE JEOPARDIZED IN THREE WAYS: INOPERABLE BRAKE LIGHTS, THE FIRE HAZARD OF THE CRUISE CONTROL, AND CONSEQUENTLY POOR BRAKES.*AK

NHTSA ODI #10116695

80,000 miles · Mar 25, 2005
Electrical SystemVehicle Speed Control

SPEED CONTROL SWITCH FAILED ON MY 1998 FORD EXPLORER, RESULTING IN CRUISE CONTROL FAILURE, MAJOR ELECTRICAL SHORT CIRCUIT, BLOWN 20A FUSE, NO TAIL LIGHTS, LEAKING BRAKE FLUID FROM MASTER CYLINDER THRU FAULTY SWITCH, AND WIRES, SWITCH AND CONNECTOR BURNED APPROXIMATLY SIX INCHES BACK FROM SWITCH. SWITCH WAS BURNED, ALSO. A NEW SW…

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SPEED CONTROL SWITCH FAILED ON MY 1998 FORD EXPLORER, RESULTING IN CRUISE CONTROL FAILURE, MAJOR ELECTRICAL SHORT CIRCUIT, BLOWN 20A FUSE, NO TAIL LIGHTS, LEAKING BRAKE FLUID FROM MASTER CYLINDER THRU FAULTY SWITCH, AND WIRES, SWITCH AND CONNECTOR BURNED APPROXIMATLY SIX INCHES BACK FROM SWITCH. SWITCH WAS BURNED, ALSO. A NEW SWITCH WAS PUT ON THE VEHICLE, ALONG WITH A PIGTAIL (WIRES & CONNECTOR), THE BRAKE SYSTEM HAD TO BE BLED AND A NEW FUSE INSTALLED. AT THAT TIME, I KNEW NOTHING OF A DEFECT. FORD SAID NOTHING OF THE PROBLEM. THE REPAIR WAS MADE 1/14/05. TO THE BEST OF MY KNOWLEGE, THE DEFECT IS NOT CORRECTED, BUT ONLY REPAIRED AS IT WAS ORIGINALLY EQUIPPED. WHEN I HEARD ABOUT THE RECALL, IT DID NOT INCLUDE MY 1998, EXPLORER, SPORT. I HAVE SAVED THE OLD SWITCH. THE NEW SWITCH NUMBER IS SW-5945, F3TZ-9F924-BB. *AK

NHTSA ODI #10114708

100,000 miles · Mar 3, 2005
Electrical SystemFire

1998 FORD EXPLORER CAUGHT FIRE AT 4:30 AM,UNDER THE HOOD ENGULFED IN FLAMES CALLED FIRE DEPT THEY CAME AND PUT FIRE OUT. THE WHOLE ENTIRE MOTOR, AND FRONT OF TRUCK RUINED,NOT DRIVABLE. I FILED A CLAIM WITH FORD THE DAY AFTER FIRE,THEY STATED THAT THEY WERE LIABLE BECAUSE THERE WERE NO RECALLS ON 1998 EXPLORERS. *JB

NHTSA ODI #10112486

135,000 miles · Jan 27, 2005
Electrical SystemFire

FIRE UNDER THE HOOD OF A 1998 FORD EXPLORER SPORT. THE VEHICLE HAD BEEN PARKED AND THE IGNITION TURNED OFF FOR OVER 4 HOURS. THE VEHICLE WAS TOTALED AND IT WAS CONCLUDED THAT THE FIRE BEGAN AS THE RESULT OF AN ELECTRICAL SHORT UNDER THE HOOD.*AK

NHTSA ODI #10108063

Mileage unknown · Jun 2, 2004
Electrical System

THE LIGHTS WENT OUT ON THE RADIO DISPLAY FOR MY EXPLORER. THE UNIT STILL PLAYED HOWEVER YOU COULDN'T SEE WHAT TRACK, THE VOLUME, OR WHAT RADIO STATION IT WAS CURRENTLY ON. I THOUGHT THIS WOULD BE A SIMPLE FUSE FIX BUT WAS TOLD THAT THE WHOLE RADIO HAD TO BE REPLACED FOR A COST OF $600. LUCKY ME I HAVE THE PREMIUM STEREO SO IT CO…

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THE LIGHTS WENT OUT ON THE RADIO DISPLAY FOR MY EXPLORER. THE UNIT STILL PLAYED HOWEVER YOU COULDN'T SEE WHAT TRACK, THE VOLUME, OR WHAT RADIO STATION IT WAS CURRENTLY ON. I THOUGHT THIS WOULD BE A SIMPLE FUSE FIX BUT WAS TOLD THAT THE WHOLE RADIO HAD TO BE REPLACED FOR A COST OF $600. LUCKY ME I HAVE THE PREMIUM STEREO SO IT COSTS MORE. I HAVE SPOKEN WITH PEOPLE WHO ALL HAVE THE 98 EXPLORER SPORT AND THIS ISSUE WAS THE SAME FOR EVERY SINGLE PERSON. *AK

NHTSA ODI #10074664

Mileage unknown · Mar 16, 2004
Electrical System

I HAVE A 98 FORD EXPLORER SPORT. THE RADIO WORKS BUT DOES NOT HAVE A LIGHTING DISPLAY. THE DEALER INFORMED ME THAT THEY KNOW OF THE PROBLEM AND THAT MOSTLY ALL EXPLORERS WILL LOSE THE LIGHTING DISPLAY, BUT THERE HAS NOT BEEN A RECALL AS OF YET. THIS IS EXPENSIVE TO FIX. IT'S NOT LIKE REPLACING A BULB OR SOMETHING. YOU'RE BA…

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I HAVE A 98 FORD EXPLORER SPORT. THE RADIO WORKS BUT DOES NOT HAVE A LIGHTING DISPLAY. THE DEALER INFORMED ME THAT THEY KNOW OF THE PROBLEM AND THAT MOSTLY ALL EXPLORERS WILL LOSE THE LIGHTING DISPLAY, BUT THERE HAS NOT BEEN A RECALL AS OF YET. THIS IS EXPENSIVE TO FIX. IT'S NOT LIKE REPLACING A BULB OR SOMETHING. YOU'RE BASICALLY BUYING A NEW RADIO. IF THAT'S THE CASE IT WON'T BE FROM THE FORD DEALERSHIP, AND IT WON'T BE THE MANUFACTURERS RADIO WHICH WE ALL KNOW WILL CRAP OUT. *JB

NHTSA ODI #10062337

114,800 miles · Jun 10, 2003
Electrical SystemExterior Lighting

SMOKE CAME OUT OF THE STEERING COLUMN AND PARK LIGHTS TURNED ON ALTHOUGH THE LIGHT SWITCH WAS IN THE "OFF" POSITION. ALSO MOVING THE MULTIFUNCTION LEVER TO MAKE A LEFT TURN SIGNAL ,THE INSTUMENT PANEL SHOWED THAT THE LEFT SIGNAL LIGHT WAS STUCK "ON" AND TURN SIGNAL LIGHTS DIDN'T WORK AT THE FRONT AND REAR OF THE TRUCK. HOWEVER, …

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SMOKE CAME OUT OF THE STEERING COLUMN AND PARK LIGHTS TURNED ON ALTHOUGH THE LIGHT SWITCH WAS IN THE "OFF" POSITION. ALSO MOVING THE MULTIFUNCTION LEVER TO MAKE A LEFT TURN SIGNAL ,THE INSTUMENT PANEL SHOWED THAT THE LEFT SIGNAL LIGHT WAS STUCK "ON" AND TURN SIGNAL LIGHTS DIDN'T WORK AT THE FRONT AND REAR OF THE TRUCK. HOWEVER, THE RIGHT SIGNAL HAS NEVER MALFUNCTIONED. THIS IS VERY TROUBLING. THIS EVENT OCURRED TWICE WITHIN A WEEK. DEALER HAS REPLACED TWO RELAYS(I PAID FOR), ONLY TIME WILL TELL IF THIS IS THE FIX.*AK

NHTSA ODI #10021354

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

1

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.