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2008 Ford F-150

Owner reports · Recalls · Investigations

Similar to other model years

Owner complaints for the 2008 Ford F-150 do not stand out strongly from the model-year median of 676.

About this comparison →

When problems were reported

Mileage at the reported incident

320 reports with mileage · 49 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.

  • Engine. Review the 53 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Steering. Review the 53 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Power Train. Review the 50 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

39 crash reports12 fire reports28 injury reports

What owners actually said

369 reports
Mileage unknown · Sep 16, 2008
Visibility

TL*THE CONTACT OWNS A 2008 FORD F-150. WHEN THE CONTACT LOOKED THROUGH THE FRONT WINDSHIELD, HE NOTICED A REFLECTION IN THE GLASS THAT REDUCED VISIBILITY. THE DEALER STATED THAT NOTHING COULD BE DONE TO CORRECT THE ISSUE. UPDATED 10/03/08 *BF UPDATED 10/07/08.*JB

NHTSA ODI #10242436

100 miles · Sep 11, 2008
Vehicle Speed Control

TL*THE CONTACT OWNS A 2008 FORD F-150. WHILE DRIVING 5 MPH, THE CONTACT PULLED OUT OF HIS DRIVEWAY AND BEHIND ANOTHER VEHICLE. HER VEHICLE SUDDENLY ACCELERATED. ON ANOTHER OCCASION WHEN THE VEHICLE ACCELERATED ON ITS OWN, THE CONTACT DEPRESSED THE BRAKE PEDAL WITH BOTH FEET, BUT HER VEHICLE CONTINUED TO CREEP UP BEHIND ANOTHE…

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TL*THE CONTACT OWNS A 2008 FORD F-150. WHILE DRIVING 5 MPH, THE CONTACT PULLED OUT OF HIS DRIVEWAY AND BEHIND ANOTHER VEHICLE. HER VEHICLE SUDDENLY ACCELERATED. ON ANOTHER OCCASION WHEN THE VEHICLE ACCELERATED ON ITS OWN, THE CONTACT DEPRESSED THE BRAKE PEDAL WITH BOTH FEET, BUT HER VEHICLE CONTINUED TO CREEP UP BEHIND ANOTHER VEHICLE. WHILE BRAKING AT A TRAFFIC LIGHT AND DRIVING THROUGH A DRIVE THRU, THE VEHICLE BEGAN TO ACCELERATE. THE DEALER FOUND NO FAILURES WITH THE VEHICLE AND STATED THAT IT WAS DUE TO DRIVER ERROR. THE VIN WAS UNKNOWN. THE CURRENT MILEAGE WAS 700 AND FAILURE MILEAGE WAS 100.

NHTSA ODI #10241805

70 miles · Sep 4, 2008
Unknown Or Other

I HAVE A 2008 F150 PICKUP WITH 348 MILES. THIS HAS HAPPENED 3 TIMES ALREADY. I PUT MY FOOT ON THE BRAKE TO SHIFT FROM PARK TO EITHER REVERSE OR DRIVE AND THE ENGINE REVS AND THE CAR LURCHES. ALL TIMES, I'VE BEEN ABLE TO PUT QUICKLY INTO PARK THEN TURN OFF THE ENGINE TO FIX THE PROBLEM. WHEN THE CAR IS RESTARTED, THE ENGINE I…

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I HAVE A 2008 F150 PICKUP WITH 348 MILES. THIS HAS HAPPENED 3 TIMES ALREADY. I PUT MY FOOT ON THE BRAKE TO SHIFT FROM PARK TO EITHER REVERSE OR DRIVE AND THE ENGINE REVS AND THE CAR LURCHES. ALL TIMES, I'VE BEEN ABLE TO PUT QUICKLY INTO PARK THEN TURN OFF THE ENGINE TO FIX THE PROBLEM. WHEN THE CAR IS RESTARTED, THE ENGINE IS RUNNING NORMALLY. ONE OF THE THREE TIMES, IT HAPPENED WITH MY HUSBAND DRIVING. I CAN'T BE SURE I BELIEVE IT'S BECAUSE THE BRAKE PEDAL AND GAS PEDAL ARE CLOSE ENOUGH TOGETHER THAT MY FOOT TOUCHES THE GAS WHEN BRAKING. THE FIRST TIME I HAD SHOES ON AND DON'T KNOW. THE SECOND TIME WAS WITH BARE FEET AND I FELT THE RIGHT SIDE OF MY FOOT TOUCH THE GAS. MY HUSBAND CAN'T COMMENT ON THE THIRD TIME. I MEASURED AND MY HONDA CIVIC BRAKE/GAS DISTANCE IS 2.75". THE TRUCK DISTANCE IS 2 3/8". I CALLED THE DEALERSHIP TWICE AND THEY CLAIM THERE'S NOTHING THEY CAN DO. I KNOW I'M GOING TO RUN SOMEBODY OVER OR GET IN AN ACCIDENT SOME DAY AND THIS WILL BE TO BLAME. I'M AFRAID TO DRIVE THE TRUCK. I'VE HAD IT OVER A MONTH AND AM STILL ON THE FIRST TANK OF GAS. I'M REALLY GLAD I KEPT MY HONDA CIVIC.

NHTSA ODI #10240864

2,500 miles · Sep 3, 2008
Electrical SystemFire

2008 F150 SUPERCREW LARIAT 4X4 BOUGHT BRAND NEW ON JULY 18 WITH 426 MILES ON IT. I HAVE MADE NO MODIFICATIONS TO THE TRUCK EXCEPT PUT A FLAT BED CAP ON THE BED THAT ATTACHES WITH CLAMPS UNDER THE BED RAIL AND HAS NO ELECTRICAL COMPONENTS. I HAVE DRIVEN THE TRUCK LESS THAN 2500 MILES. ON THE MORNING OF THE INCIDENT I DROVE TO …

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2008 F150 SUPERCREW LARIAT 4X4 BOUGHT BRAND NEW ON JULY 18 WITH 426 MILES ON IT. I HAVE MADE NO MODIFICATIONS TO THE TRUCK EXCEPT PUT A FLAT BED CAP ON THE BED THAT ATTACHES WITH CLAMPS UNDER THE BED RAIL AND HAS NO ELECTRICAL COMPONENTS. I HAVE DRIVEN THE TRUCK LESS THAN 2500 MILES. ON THE MORNING OF THE INCIDENT I DROVE TO WORK JUST MINUTES AWAY FROM HOME. PARKED TRUCK AND LOCKED VEHICLE AND WENT INTO FACTORY TO MY OFFICE. 35-40 MINUTES LATER I RECEIVED A CALL ON MY PHONE FROM THE GUARD BUILDING SAYING MY TRUCK WAS ON FIRE. I WALKED BACK OUT TO THE PARKING LOT AND THE TRUCK WAS FILLED WITH SMOKE. BYSTANDERS SAID TRUCK HAD FLAMES INSIDE GOING UP WINDSHIELD BUT HAD DIED DOWN. THEY HAD A FIRE EXTINGUISHER BUT THE TRUCK WAS LOCKED AND THEY DIDN'T WANT TO OPEN THE TRUCK SINCE THE FLAMES WERE DYING DOWN UNTIL THE FIRE DEPARTMENT ARRIVED. FIRE DEPARTMENT ARRIVED AND I UNLOCKED TRUCK DOOR AND OPENED UP TRUCK TO LET SMOKE OUT. SMALL FIRE REKINDLED UNDER DASH ON PASSENGER SIDE, PUT OUT IMMEDIATELY WITH DRY CHEMICAL FIRE EXTINGUISHER. OPENED HOOD TO DISCONNECT BATTERY CABLES FOR FIRE DEPARTMENT AND DID NOT NOTICE ANY DAMAGE IN ENGINE COMPARTMENT. INTERIOR DASH WAS COMPLETED BURNED AWAY IN A 4-5" WIDE AREA BETWEEN RADIO/HVAC CONTROL CONSOLE AND GLOVE COMPARTMENT DOOR. AREA THAT INCLUDES THE AUXILIARY POWER PLUG AND A DASH VENT. I MADE NO CHANGES/MODIFICATIONS OR ADD ONS TO THE TRUCK AFTER PURCHASING THE VEHICLE, AND HAD NOTHING PLUGGED INTO THE AUXILIARY POWER PLUG AT ANY TIME. DASH IS COMPLETELY GONE IN THIS AREA PLUS A SMALL PORTION ABOVE THE PASSENGER AIRBAG AREA OF DASH. VENT IS COMPLETELY GONE, AUXILIARY POWER PLUG IS COMPLETELY BURNED AWAY WITH JUST A METAL FRAME OF THE PLUG REMAINING LAYING ON THE FLOOR OF THE TRUCK ON TOP OF SOME MELTED, PILED-UP PLASTIC FROM DASH. NO WIRING WAS ATTACHED TO THE METAL FRAME ANYMORE. FIRE DEPARTMENT MADE A REPORT, SO POLICE WERE NOT CALLED TO THE SCENE. FORD CONSUMER DEPARTMENT WAS NOTIFIED BUT DECLINES LIABILITY. *TR

NHTSA ODI #10240824

2,000 miles · Sep 2, 2008
Equipment

I THINK IT A CRIME THAT FORDS PUT TOWING WEIGHTS ON THEIR WEB SITES AND IN BOOKLETS AND IT IS FALSE. WE BOUGHT FORD 150 IN MARCH SO THAT WE COULD TOW OUR 32"'TRAVEL TRAILER THAT WEIGHS 7,000 LBS. ALL DOCUMENTATION STATES IT CAN PULL 9,000 LBS. WE HAVE PULLED OUR UNIT 3 TIMES AND EVERYTIME WE PRAY THAT WE MAKE IT TO OUR DESTINA…

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I THINK IT A CRIME THAT FORDS PUT TOWING WEIGHTS ON THEIR WEB SITES AND IN BOOKLETS AND IT IS FALSE. WE BOUGHT FORD 150 IN MARCH SO THAT WE COULD TOW OUR 32"'TRAVEL TRAILER THAT WEIGHS 7,000 LBS. ALL DOCUMENTATION STATES IT CAN PULL 9,000 LBS. WE HAVE PULLED OUR UNIT 3 TIMES AND EVERYTIME WE PRAY THAT WE MAKE IT TO OUR DESTINATION AND HOME SAFELY. I WOULD LIKE TO KNOW WHO RATES THESE VEHICLES TOWING CAPACITY. OUR NEW TRUCK STRUGGLES AND SWAYS SO BAD. WE HAVE A SWAY BAR TOO. I AM GOING TO GO AS FAR AS I CAN TO PREVENT ANY OTHER POOR SOLE FROM EXPERIENCING WHAT WE ARE EXPERIENCING. AS THE HIGHWAY TRAFFIC SAFETY I WOULD BE CONCERNED ABOUT WHAT IS TOWING WHAT OUT THERE. WE HAVE HAD NO ACCIDENT OR DEATHS YET BUT I WILL BE KEEPING COPIES OF EVERYTHING I SEND SO IF I DO DIE PULLING THIS TRAILER, I HAVE ADVISED MY CHILDREN TO FIGHT FOR OTHER PEOPLE. WE PAY ALOT OF MONEY A MONTH JUST TO TOW THIS TRAILER AND THE DARN TRUCK WON'T TOW IT, BUT ALL DOCUMENTATION SAYS IT SHOULD. MAYBE IT IS JUST US, BUT MY HUSBAND IS NOT A FEARFUL PERSON WHAT SO EVER AND TOWING THIS TRAILER DOES CAUSE SOME FEAR. *TR

NHTSA ODI #10240608

1,700 miles · Aug 26, 2008
Power Train

PURCHASED NEW FORD 150 SUPERCREW 4X4. ON 07/2008. AFTER ARRIVING AT STOP SIGN, STOPPED WHEN RESTARTED, THE ENGINE ACCELERATED BRAKES WOULD NOT STOP THE VEHICLE. HAD TO QUICKLY PUT TRANSMISSION INTO NEUTRAL TO AVOID HITTING OTHER VEHICLES. THIS RECURRED TWICE WHEN STOPPING AT STOP LIGHT AND STOP SIGN. *TR

NHTSA ODI #10239785

Mileage unknown · Aug 20, 2008
Equipment

BOUGHT A 2008 F-150 AND THE A/C DOES NOT COOL PROPERLY. CHECKED IT AGAINST A 2005 F-150 THAT I OWN AND NEW TRUCK A/C IS 8 DEGREES WARMER. TOOK NEW TRUCK BACK TO DEALER, GOT A LOANER 2008 AND CHECKED IT'S A/C. IT COOLS LIKE THE 2005. DEALER SAID NOTHING WRONG WITH A/C. IT HAS BEEN BACK TO DEALER TWICE NOW AND NOW IS COOLING 15 DE…

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BOUGHT A 2008 F-150 AND THE A/C DOES NOT COOL PROPERLY. CHECKED IT AGAINST A 2005 F-150 THAT I OWN AND NEW TRUCK A/C IS 8 DEGREES WARMER. TOOK NEW TRUCK BACK TO DEALER, GOT A LOANER 2008 AND CHECKED IT'S A/C. IT COOLS LIKE THE 2005. DEALER SAID NOTHING WRONG WITH A/C. IT HAS BEEN BACK TO DEALER TWICE NOW AND NOW IS COOLING 15 DEGREES WARMER THAN ORIGINALLY. DEALER WILL NOT HELP. CONTACTED CUSTOMER RELATIONS IN DEABORN,MI AND THEY ENDED UP TALKING TO MY DEALER AND SAID SAME THING ..NOTHING THEY CAN DO. I LIVE IN TEXAS AND IT GETS HOT HERE. THERE IS A BIG DIFFERENCE IN COOLING SOMETHING FROM SAY 95 DEGREES TO 115 DEGREES. SOMETHING IS WRONG WITH A/C AND FORD DEALERSHIP WILL NOT ACKNOWLEDGE IT OR FIX IT. *TR

NHTSA ODI #10239092

70 miles · Aug 8, 2008
Power Train

PURCHASED NEW FORD 150 SUPERCAB 2X4. ON 8/6/08. AUTOMATIC TRANSMISSION. DROVE ABOUT 60 MILES ON FREEWAY. AFTER ARRIVING AT DESTINATION, STOPPED AT STORE. WHEN RESTARTED, WHEN PREPARING TO ENTER ROAD, THE ENGINE ACCELERATED TO ABOUT 4,000 RPMS WHEN IT SHOULD HAVE BEEN AT IDLE. BRAKES WOULD NOT STOP THE VEHICLE. HAD TO QUIC…

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PURCHASED NEW FORD 150 SUPERCAB 2X4. ON 8/6/08. AUTOMATIC TRANSMISSION. DROVE ABOUT 60 MILES ON FREEWAY. AFTER ARRIVING AT DESTINATION, STOPPED AT STORE. WHEN RESTARTED, WHEN PREPARING TO ENTER ROAD, THE ENGINE ACCELERATED TO ABOUT 4,000 RPMS WHEN IT SHOULD HAVE BEEN AT IDLE. BRAKES WOULD NOT STOP THE VEHICLE. HAD TO QUICKLY PUT TRANSMISSION INTO NEUTRAL TO AVOID TRUCK MOVING INTO THE ROAD AND HITTING OTHER VEHICLES. THIS RECURRED 4 OR FIVE TIMES WHEN STOPPING AT STOP LIGHT, STOP SIGN AND STOPPING AT MOTEL. THE NEXT MORNING THIS RECURRED WHEN STOPPING AT MOTEL OFFICE. DID NOT REOCCUR. TOOK TRUCK INTO DEALER AND THEY ARE INSPECTING FOR PROBLEMS. *TR

NHTSA ODI #10237473

3,000 miles · Aug 3, 2008
Tires

A FAULTY TIRE VALVE STEM CAUSED A FLAT TIRE ON 2008 FORD F150 TRUCK. THE VALVE STEM HAD CRACKS ON BOTH REAR TIRES, WHICH COULD HAVE RESULTED IN AN ACCIDENT. HAD BOTH VALVE STEMS REPLACED. *TR

NHTSA ODI #10236784

2,500 miles · Jul 8, 2008
Engine And Engine CoolingCrash

TL*THE CONTACT OWNS A 2008 FORD F-150. WHILE APPROACHING A STOP SIGN, THE VEHICLE SPONTANEOUSLY SWAYED FORWARD THEN CAME TO A COMPLETE STOP. AFTER APPLYING PRESSURE TO THE BRAKE PEDAL THE RPMS INCREASED, THE VEHICLE ACCELERATED AND CAUSED THE DRIVER TO CRASH INTO ANOTHER VEHICLE. THERE WAS MODERATE DAMAGE TO THE VEHICLE. WHILE D…

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TL*THE CONTACT OWNS A 2008 FORD F-150. WHILE APPROACHING A STOP SIGN, THE VEHICLE SPONTANEOUSLY SWAYED FORWARD THEN CAME TO A COMPLETE STOP. AFTER APPLYING PRESSURE TO THE BRAKE PEDAL THE RPMS INCREASED, THE VEHICLE ACCELERATED AND CAUSED THE DRIVER TO CRASH INTO ANOTHER VEHICLE. THERE WAS MODERATE DAMAGE TO THE VEHICLE. WHILE DRIVING IN REVERSE, THE VEHICLE ACCELERATED AND CRASHED INTO A TREE. THERE WERE NO WARNING LIGHTS PRIOR TO THE FAILURES. THE DEALER AND THE MANUFACTURER WERE NOTIFIED AND THE CONTACT IS WAITING FOR A RESPONSE. THE FAILURE MILEAGE WAS 2500 AND THE CURRENT MILEAGE WAS 10,031.

NHTSA ODI #10233581

Official recalls

1

08V523000 · Engine And Engine Cooling

Oct 8, 2008

ROUSH IS RECALLING 213 MY 2007-2008 FORD F-150 TRUCKS ALTERED TO OPERATE USING LIQUID PROPANE INJECTION. THE HYDRO-CARBON PAPER AFFIXED TO THE INSIDE OF THE AIRBOX LID WITH ADHESIVE MAY BECOME DISLODGED DURING OPERATION.

Consequence & remedy

Consequence: THIS FAILURE MAY RESULT IN A LOSS OF PERFORMANCE, ILLUMINATION OF THE MALFUNCTION INDICATOR LAMP (MIL) AND, IN EXTREME CASES, A STALLING OF THE VEHICLE DURING OPERATION WITHOUT NOTICE, WHICH COULD RESULT IN A CRASH.

Remedy: DEALERS WILL REPLACE THE AIRBOX LID WITH A NEW ONE THAT INCLUDES THE HYDRO-CARBON PAPER WHICH HAS BEEN AFFIXED USING AN ADHESIVE PROMOTER AND GREATER PRESSURE AS RECOMMENDED BY THE MANUFACTURER FREE OF CHARGE. THE RECALL BEGAN ON OCTOBER 21, 2008. OWNERS MAY CONTACT ROUSH AT 1-866-307-6788.

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