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2007 Ford Expedition

Owner reports · Recalls · Investigations

Similar to other model years

Owner complaints for the 2007 Ford Expedition do not stand out strongly from the model-year median of 155.

About this comparison →

When problems were reported

Mileage at the reported incident

186 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.

  • Tires. Review the 29 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Power Train. Review the 27 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Fuel/propulsion System. Review the 23 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

8 crash reports5 fire reports5 injury reports

What owners actually said

215 reports
20,817 miles · Sep 30, 2009
Tires

TL*THE CONTACT OWNS A 2007 FORD EXPEDITION WITH PIRELLI STR SCORPION, P255/70/R18 TIRES. WHILE DRIVING 20 MPH THE DRIVER SIDE REAR AND FRONT TIRES BLEW-OUT. THE VEHICLE WAS TAKEN TO THE DEALER AND THE PIRELLI STR SCORPION TIRES WERE REPLACED AT AN EXPENSE OF $529.00. TEN DAYS AFTER THE REPAIR THE PASSENGER SIDE REAR TIRE BLEW-…

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TL*THE CONTACT OWNS A 2007 FORD EXPEDITION WITH PIRELLI STR SCORPION, P255/70/R18 TIRES. WHILE DRIVING 20 MPH THE DRIVER SIDE REAR AND FRONT TIRES BLEW-OUT. THE VEHICLE WAS TAKEN TO THE DEALER AND THE PIRELLI STR SCORPION TIRES WERE REPLACED AT AN EXPENSE OF $529.00. TEN DAYS AFTER THE REPAIR THE PASSENGER SIDE REAR TIRE BLEW-OUT. THE TIRE WAS REPLACED AT AN EXPENSE OF $238.00. THE MANUFACTURER WAS NOTIFIED, BUT NO ASSISTANCE WAS PROVIDED. THE FAILURE MILEAGE WAS 20,817. THE CURRENT MILEAGE WAS 21,400. UPDATED 11/09/09.*JB

NHTSA ODI #10285782

22,000 miles · Sep 21, 2009
Tires

IN JULY WE HAD A TIRE GET PUNCTURED WITH A ROCK, WE HAD THAT PLUGGED. THE SAME TIRE 3 WEEKS LATER GOT PUNCTURED WITH ANOTHER ROCK AND WE HAD TO REPLACE THE TIRE. IN SEPT. WE HAD A ROCK PUNCTURE ANOTHER TIRE. WE HAD TO REPLACE THE TIRE. WE HAVE TWO OTHER CARS AND HAVE NEVER HAD THIS PROBLEM. WE DO NOT FEEL THIS IS "BAD LUCK…

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IN JULY WE HAD A TIRE GET PUNCTURED WITH A ROCK, WE HAD THAT PLUGGED. THE SAME TIRE 3 WEEKS LATER GOT PUNCTURED WITH ANOTHER ROCK AND WE HAD TO REPLACE THE TIRE. IN SEPT. WE HAD A ROCK PUNCTURE ANOTHER TIRE. WE HAD TO REPLACE THE TIRE. WE HAVE TWO OTHER CARS AND HAVE NEVER HAD THIS PROBLEM. WE DO NOT FEEL THIS IS "BAD LUCK" WITH TIRES. WE THINK THE TIRES THAT WERE ON THE SUV WHEN WE BOUGHT IT ARE FAULTY, YES WE HAVE OUR TIRES ROTATED LIKE WE ARE SUPPOSE TO AND THE TRUCK ONLY HAS 23,000 MILES ON IT. *TR

NHTSA ODI #10284775

50,000 miles · Sep 4, 2009
Service Brakes, Hydraulic

TL*THE CONTACT OWNS A 2007 FORD EXPEDITION. WHILE DRIVING 35 MPH MAKING A RIGHT TURN ON A PAVED ROAD, THE STEERING WHEEL LOCKED. SHE WAS UNABLE TO CONTROL THE STEERING WHEEL AND THE BRAKES ALSO LOCKED. THE ADVANCED TRACK LIGHT ILLUMINATED AND THERE WAS A NOISE IN THE BRAKE AREA. SHE TRIED TO CONTROL THE STEERING WHEEL BY REMOVIN…

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TL*THE CONTACT OWNS A 2007 FORD EXPEDITION. WHILE DRIVING 35 MPH MAKING A RIGHT TURN ON A PAVED ROAD, THE STEERING WHEEL LOCKED. SHE WAS UNABLE TO CONTROL THE STEERING WHEEL AND THE BRAKES ALSO LOCKED. THE ADVANCED TRACK LIGHT ILLUMINATED AND THERE WAS A NOISE IN THE BRAKE AREA. SHE TRIED TO CONTROL THE STEERING WHEEL BY REMOVING HER FOOT FROM THE ACCELERATOR PEDAL AND THE BRAKES ALSO FAILED TO STOP THE VEHICLE. THE VEHICLE SPEED BEGAN TO ACCELERATE AND IT SUDDENLY CAME TO A STOP. THE DRIVER WAS ABLE TO DRIVE TO THE DEALER; HOWEVER, THE MECHANIC WAS UNABLE TO DIAGNOSE THE FAILURE. THE VEHICLE HAS NOT BEEN REPAIRED. SHE IS AWARE OF THE SAFETY RISK INCLUDING THE CRASH THAT COULD HAVE OCCURRED. THE CURRENT AND FAILURE MILEAGES WERE 50,000.

NHTSA ODI #10282831

35,800 miles · Aug 31, 2009
Service Brakes, Hydraulic

2007 FORD EXPEDITION EL, EDDIE BAUER 4X4 MILEAGE - 35,800 PASSENGER FRONT BRAKE "DRAGGING". CAUSED EXTREMELY HOT AND SMOKING BRAKE COMPONENTS. -- THIS COULD HAVE CAUSED SERIOUS BRAKE FAILURE DUE TO BRAKE FLUID BOILING; POSSIBLE FIRE, POSSIBLE LOCKED/SKIDDING TIRE AND LOSS OF STEERING CONTROL. FULL STORY: WAS TOWING A C…

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2007 FORD EXPEDITION EL, EDDIE BAUER 4X4 MILEAGE - 35,800 PASSENGER FRONT BRAKE "DRAGGING". CAUSED EXTREMELY HOT AND SMOKING BRAKE COMPONENTS. -- THIS COULD HAVE CAUSED SERIOUS BRAKE FAILURE DUE TO BRAKE FLUID BOILING; POSSIBLE FIRE, POSSIBLE LOCKED/SKIDDING TIRE AND LOSS OF STEERING CONTROL. FULL STORY: WAS TOWING A CAR ON A TRAILER OF ABOUT 5000 POUNDS TOTAL WEIGHT. TYPICAL DRIVING, SOUTH OF WATKINS GLEN ON RT 14 TOWARD INTERSTATE, SPEEDS 30-60MPH; TRAILER HAS FULLY OPERATIONAL ELECTRIC BRAKES. SMELLED "HOT BRAKES", PULLED OVER, SMOKE POURING OUT OF WHEEL. PYROMETER COULD NOT MEASURE ROTOR TEMPERATURE - MEANING ROTOR WAS HOTTER THAN 790 DEGREES F. (I BELIEVE THE DRIVERS FRONT ROTOR WAS ABOUT 230F). I ALSO CAN'T SAY 100% THERE WAS NOT A FIRE. JACKED IT UP, IT WAS HARD TO TURN THE WHEEL. WHEN IT COOLED, THE WHEEL ROTATED WITHOUT RESISTANCE. TOOK CALIPER OFF, CLEANED BRAKE PAD CONTACT AREAS, PISTONS SEEMED TO PRESS BACK EASILY. DID NOT NEED BRAKES ON REST OF WAY HOME AND HAVE NOT TOWED SINCE -- NO PROBLEMS WITH BRAKES SINCE (ABOUT 200 MILES REGULAR DRIVING). SO FAR STOPS STRAIGHT WITHOUT A SHIMMY. I PLAN TO REPLACE PADS AND BLEED SYSTEM UNLESS I FIND SOMETHING THAT SUGGEST PROBLEMS IS MORE SERIOUS. OTHER PEOPLE HAVE HAD IDENTICAL PROBLEMS AND ABOUT SAME MILEAGE: HTTP://WWW.EDMUNDS.COM/FORD/EXPEDITIONEL/2007/CONSUMERREVIEW.HTML. *TR

NHTSA ODI #10282491

24,363 miles · Aug 9, 2009
Tires

MY 2007 FORD EXPEDITION EXPERIENCED AN IMMEDIATE LOSS OF TIRE PRESSURE ON ONE TIRE WHILE ON THE FREEWAY ON 27-JULY 2009 THAT RESULTED IN THE TIRE BECOMING IMMEDIATELY DEFLATED AND RUINED. ELDER FORD (TROY, MICHIGAN) INFORMED ME OF A FAULTY TIRE VALVE ISSUE THAT FORD MOTOR COMPANY IS AWARE OF, BUT HAS NOT ISSUED A RECALL. THE D…

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MY 2007 FORD EXPEDITION EXPERIENCED AN IMMEDIATE LOSS OF TIRE PRESSURE ON ONE TIRE WHILE ON THE FREEWAY ON 27-JULY 2009 THAT RESULTED IN THE TIRE BECOMING IMMEDIATELY DEFLATED AND RUINED. ELDER FORD (TROY, MICHIGAN) INFORMED ME OF A FAULTY TIRE VALVE ISSUE THAT FORD MOTOR COMPANY IS AWARE OF, BUT HAS NOT ISSUED A RECALL. THE DEALER FOUND ALL VALVES ON MY 2007 EXPEDITION WERE CRACKED AND REPLACED ALL VALVES BUT THE SPARE TIRE, WHICH THEY STATED THEY WERE NOT ALLOWED TO CHECK OR REPLACE. A CONVERSATION WITH THEIR CUSTOMER SERVICE DEPARTMENT ON 31-JULY LEADS ME TO BELIEVE FORD MOTOR COMPANY HAS A VERY LARGE AND COSTLY SAFETY PROBLEM THEY DO NOT WANT TO DEAL WITH DUE TO THE ECONOMIC TIMES. REMEMBER THE FIRESTONE/EXPLORER FIASCO? *TR

NHTSA ODI #10279864

27,000 miles · Jul 30, 2009
Service Brakes, HydraulicVehicle Speed Control

TL*THE CONTACT OWNS A 2007 FORD EXPEDITION. WHILE DRIVING 45 MPH ON AN INCLINE, THE BRAKES FAILED AND THE VEHICLE SUDDENLY ACCELERATED. THE VEHICLE HAS NOT BEEN DIAGNOSED BY THE DEALER. THE CURRENT AND FAILURE MILEAGES WERE 27,000.

NHTSA ODI #10278815

12,000 miles · Jul 13, 2009
Tires

NHTSA SAID THAT THERE IS NOT A SAFTY CONCERN THAT THE VALVE STEMS ON CERTIN FORD CARS ARE SPLITTING. THEY HAVE CLOSED THE INVESTIGATION APRIL 9, 2009. THAT'S GREAT, EXCEPT THAT ON APRIL 11, 2009 ONE OF OUR VALVE STEMS BLOW OUT WHILE WE WERE DRIVING ON A MOUNTAIN HIGHWAY. THERE WAS NO WARNING AND THE TIRE SHREDDED. 2 18 WHEEL…

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NHTSA SAID THAT THERE IS NOT A SAFTY CONCERN THAT THE VALVE STEMS ON CERTIN FORD CARS ARE SPLITTING. THEY HAVE CLOSED THE INVESTIGATION APRIL 9, 2009. THAT'S GREAT, EXCEPT THAT ON APRIL 11, 2009 ONE OF OUR VALVE STEMS BLOW OUT WHILE WE WERE DRIVING ON A MOUNTAIN HIGHWAY. THERE WAS NO WARNING AND THE TIRE SHREDDED. 2 18 WHEELERS HAD TO DO ALL KINDS OF MOVES TO AVOID HITTING US. THE ONE NEARLY DID. THE TIRE WAS COMPLETELY SHREDDED AND WE COULD HARDLY GET FAR ENOUGH OFF THE HIGHWAY TO PUT ON THE SPARE. WITH THREE SMALL KIDS IN THE CAR, IT WAS VERY SCARY. THE ON APRIL 25TH, 2009, IT HAPPENED TO THE OTHER FRONT TIRE WHILE WE WERE ON A TRIP. WHEN INSPECTING THE TWO BACK VALVES, THEY WERE BARLEY HOLDING ON. WE WERE IN THE MIDDLE OF NOWHERE AND NOTHING WAS OPENED FOR HELP. *TR

NHTSA ODI #10276483

21,000 miles · Jun 30, 2009
Tires

MY TIRE VALVE FAILED ON MY 2007 FORD EXPEDITION. TWO DAYS AFTER THE DEALER DID THE "VISUAL INSPECTION" ON THE FAULTY VALVE STEMS THAT HAVE BEEN KNOW TO HAVE PROBLEMS BUT HAVE NOT YET BEEN RECALLED BY FORD. THIS IS THE SECOND TIRE THAT HAS FAILED ON THIS VEHICLE! BOTH HAPPENED AT FREEWAY SPEEDS NEARLY CAUSING AN ACCIDENT DUE…

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MY TIRE VALVE FAILED ON MY 2007 FORD EXPEDITION. TWO DAYS AFTER THE DEALER DID THE "VISUAL INSPECTION" ON THE FAULTY VALVE STEMS THAT HAVE BEEN KNOW TO HAVE PROBLEMS BUT HAVE NOT YET BEEN RECALLED BY FORD. THIS IS THE SECOND TIRE THAT HAS FAILED ON THIS VEHICLE! BOTH HAPPENED AT FREEWAY SPEEDS NEARLY CAUSING AN ACCIDENT DUE TO TIRES RUNNING FLAT. FORD NEEDS TO DO MORE THAN JUST INSPECTING THESE FAULTY VALVE STEMS. THEIR "VISUAL INSPECTION" WILL NOT PREVENT POTENTIALLY FATAL ACCIDENTS. *TR

NHTSA ODI #10275384

22,000 miles · Jun 19, 2009
Tires

THE RUBBER VALVE STEMS ON THE TIRES CRACKED RESULTING IN LOSS OF TIRE PRESSURE. *TR

NHTSA ODI #10274376

18,855 miles · Jun 9, 2009
Tires

I HAVE EXPERIENCE 3 VALVE STEM FAILURES ON CONTINENTAL CONTITRAC TR TIRES; MODEL P265/70R17 113S ON A 2007 FORD EXPEDITION . THE VALVE STEMS APPARENTLY ARE THE CHINESE MODEL TR-414 STEMS THAT HAVE BEEN DISCUSSED IN SEVERAL AUTOMOTIVE NEWSPAPER COLUMNS. TODAY (6/9/09) I RECEIVED A LETTER FROM FORD MOTOR COMPANY NOTIFYING VEHICLE…

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I HAVE EXPERIENCE 3 VALVE STEM FAILURES ON CONTINENTAL CONTITRAC TR TIRES; MODEL P265/70R17 113S ON A 2007 FORD EXPEDITION . THE VALVE STEMS APPARENTLY ARE THE CHINESE MODEL TR-414 STEMS THAT HAVE BEEN DISCUSSED IN SEVERAL AUTOMOTIVE NEWSPAPER COLUMNS. TODAY (6/9/09) I RECEIVED A LETTER FROM FORD MOTOR COMPANY NOTIFYING VEHICLE OWNERS ABOUT THIS PROBLEM. THE FORD REPRESENTATIVE SAID SINCE THIS IS NOT A RECALL, THERE IS NO PROVISION FOR MONETARY REIMBURSEMENT TO VEHICLE OWNERS WHO HAVE HAD THE VALVE STEMS REPLACED. I BELIEVE THIS IS A SAFETY ISSUE AND NHTSA SHOULD CONSIDER A MANDATED RECALL FOR ALL TIRES USING THESE POORLY MGF. VALVE STEMS. MY STEM LEAKAGE PROBLEMS HAVE OCCURRED ON APRIL 9, APRIL 23 AND JUNE 9, 2009. I HAVE ROTATED MY TIRES EVERY 3000 MILES AND THEY HAVE APPROX. 21620 MILES WEAR. FORTUNATELY I HAVE A TIRE PRESSURE MONITORING SYSTEM THAT ALERTED ME TO THE PROBLEMS BEFORE THE TIRES WENT COMPLETELY FLAT OR BEFORE I WAS STRANDED ON THE HIGHWAY. *TR

NHTSA ODI #10273253

Official recalls

2

08V057000 · Fuel System, Gasoline:fuel Injection System:fuel Rail

Feb 5, 2008

FORD IS RECALLING 57,199 MY 2006-2007 E-150, E-250, E-350, AND MY 2007 EXPEDITION AND LINCOLN NAVIGATOR VEHICLES EQUIPPED WITH 5.4L ENGINES. THE FUEL RAIL CROSS-OVER HOSE MAY CONTAIN WEAK AREAS. AS A RESULT, THE HOSE MAY CRACK, WHICH COULD CAUSE A FUEL ODOR AND/OR FUEL LEAK.

Consequence & remedy

Consequence: FUEL LEAKAGE IN THE PRESENCE OF AN IGNITION SOURCE COULD RESULT IN A FIRE.

Remedy: DEALERS WILL REPLACE THE FUEL RAIL ASSEMBLY. THE RECALL BEGAN ON MARCH 3, 2008. OWNERS MAY CONTACT FORD AT 1-800-392-3673.

08V058000 · Latches/locks/linkages:doors:latch

Feb 5, 2008

FORD IS RECALLING 123,632 MY 2007-2008 EXPEDITION AND LINCOLN NAVIGATOR VEHICLES. THE DOOR HANDLE HOUSING EMBOSSMENT RETAINING THE BOTTOM OF THE INTERIOR DOOR HANDLE SPRING ON ALL SIDE DOORS MAY FRACTURE DURING NORMAL CUSTOMER USAGE. THIS CAN RESULT IN INSUFFICIENT SPRING FORCE TO RETURN THE HANDLE TO THE FULLY CLOSED POSITION. THE HANDLE MAY BE LOOSE CAUSING A RATTLE OR NOISE AND THE HANDLE MAY NOT RETURN TO THE FULLY CLOSED POSITION. THIS CONDITION MAY ALSO PROVIDE A DELAYED RESISTANCE WHEN ACTUATING THE HANDLE PRIOR TO OPENING THE DOOR.

Consequence & remedy

Consequence: IN THE EVENT OF A SIDE IMPACT CRASH, THE INTERIOR DOOR HANDLE MAY CAUSE THE DOOR LATCH TO OPEN INCREASING THE RISK OF INJURY TO A VEHICLE OCCUPANT.

Remedy: DEALERS WILL REPLACE THE INTERIOR HANDLE SPRING ON ALL SIDE DOORS. THE RECALL BEGAN ON MARCH 5, 2008. 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