NHTSA owner reports · September 18, 2026 snapshot.
Unknown Or Other complaints
43 reportsClear category filter128,000 miles · Aug 7, 2011
Unknown Or Other
MY 2007 FORD FREESTYLE SEL PROBLEMS STARTED OUT WITH THE WRENCH LIGHT COMING ON OCCASIONALLY WHEN THE OUTSIDE TEMPERATURE REACHED 90 DEGREES.IT WOULD SURGE VIOLENTLY WHEN PUT IN REVERSE,AND HAD NO POWER AFTER THAT.TURNING THE ENGINE OFF AND RE-STARTING WOULD CLEAR THE PROBLEM.IT NOW SURGES VIOLENTLY WHEN BACKING UP,OR MANUVERING…
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MY 2007 FORD FREESTYLE SEL PROBLEMS STARTED OUT WITH THE WRENCH LIGHT COMING ON OCCASIONALLY WHEN THE OUTSIDE TEMPERATURE REACHED 90 DEGREES.IT WOULD SURGE VIOLENTLY WHEN PUT IN REVERSE,AND HAD NO POWER AFTER THAT.TURNING THE ENGINE OFF AND RE-STARTING WOULD CLEAR THE PROBLEM.IT NOW SURGES VIOLENTLY WHEN BACKING UP,OR MANUVERING AT SLOW SPEEDS .IT RUNS FINE ON THE OPEN HI-WAY,BUT WILL STALL AT A STOP.THE ENGINE RACES WHEN SHIFTING FROM FORWARD TO REVERSE,OR INTO PARK.I HAVE READ WHERE OTHERS ARE EXPERIENCING THIS SAME PROBLEM,AND YET FORD MOTORS CONTINUES TO IGNORE THE ISSUE.I ALSO READ WHERE HUNDREDS OF DOLLARS HAVE BEEN SPENT BY OTHERS ,AND STILL HAVING PROBLEMS.I HAVE SCHEDULED AN APPOINTMENT WITH MY LOCAL DEALER FOR 8/08/11,AND DREADING THE COST TO REPAIR A PROBLEM THAT HAS BEEN APPARENT FOR SOME TIME. *TT
NHTSA ODI #10417813
83,200 miles · Aug 6, 2011
Unknown Or Other
I WAS PULLING INTO A PARKING SPOT IN MY 2007 FORD FREESTYLE WHEN ALL OF A SUDDEN WITHOUT WARNING THE CAR LUNGED FORWARD. MY FOOT WAS NOT ON THE ACCELERATOR IN FACT IT WAS LIGHTLY PRESSED ON THE BRAKE AS I WAS EASING INTO THE SPOT. FOR SEVERAL MONTHS NOW WE HAVE BEEN EXPERIENCING A HUMMING NOISE WITH THE RPM'S HOVERING ABOVE NORM…
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I WAS PULLING INTO A PARKING SPOT IN MY 2007 FORD FREESTYLE WHEN ALL OF A SUDDEN WITHOUT WARNING THE CAR LUNGED FORWARD. MY FOOT WAS NOT ON THE ACCELERATOR IN FACT IT WAS LIGHTLY PRESSED ON THE BRAKE AS I WAS EASING INTO THE SPOT. FOR SEVERAL MONTHS NOW WE HAVE BEEN EXPERIENCING A HUMMING NOISE WITH THE RPM'S HOVERING ABOVE NORMAL. A REDUCTION IN POWER OCCURS AT LOWER SPEEDS ESPECIALLY WITH A/C ON. PROBLEM SEEMS TO BE GETTING WORSE, HAVE READ NUMEROUS COMPLAINTS WITH THE SAME MECHANICAL PROBLEMS IN THE SAME VEHICLE AS MY OWN. APPEARS FROM PREVIOUS REPORTS READ THAT THE ISSUE HAS TO DO WITH A DEFECTIVE THROTTLE BODY.
NHTSA ODI #10418688
117,000 miles · Jul 31, 2011
Unknown Or Other
WE PURCHASED A USED 2007 FREESTYLE IN NOV. 2010, WHEN WARM WEATHER CAME AROUND WE REALIZED THE AIR CONDITIONER DID NOT WORK SO WE HAD IT FIXED. SINCE THEN ON SEVERAL OCCASIONS OUR FREESTYLE HAS SURGED, OR LUNGED ON IT'S OWN, USUALLY AT LOW SPEEDS AND EVEN WHEN MY FOOT IS ON THE BRAKE. THIS HAS REALLY SCARED ME SEVERAL TIMES A…
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WE PURCHASED A USED 2007 FREESTYLE IN NOV. 2010, WHEN WARM WEATHER CAME AROUND WE REALIZED THE AIR CONDITIONER DID NOT WORK SO WE HAD IT FIXED. SINCE THEN ON SEVERAL OCCASIONS OUR FREESTYLE HAS SURGED, OR LUNGED ON IT'S OWN, USUALLY AT LOW SPEEDS AND EVEN WHEN MY FOOT IS ON THE BRAKE. THIS HAS REALLY SCARED ME SEVERAL TIMES AS THE MAJORITY OF THE TIME I'M PARKING AND HAVE BEEN CLOSE ON THREE ACCOUNTS TO HITTING THE CAR IN FRONT OR BACK OF ME. I ALSO WAS AT A STOP SIGN IN A PARKING LOT AND SOMEONE WAS WALKING IN THE CROSSWALK IN FRONT ON ME AND IT SURGED FORWARD, THANK GOODNESS NO ONE WAS HURT.
NHTSA ODI #10417277
68,250 miles · Jul 31, 2011
Unknown Or Other
2007 FORD FREESTYLE LUNGES FORWARD WHEN WE DO NOT HAVE OUR FOOT ON THE ACCELERATOR. IT SEEMS TO BE WORSE WHEN THE A/C IS BEING USED (I.E.SUMMER MONTHS). THIS HAS ALMOST CAUSED ACCIDENTS ON SEVERAL OCCASIONS WHEN WE FIRST NOTICED IT. NOW WE TRY TO REMEMBER TO BE AWARE BUT WE WANT IT FIXED. WE HAVE TAKEN IT TO BE FIXED AND THE…
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2007 FORD FREESTYLE LUNGES FORWARD WHEN WE DO NOT HAVE OUR FOOT ON THE ACCELERATOR. IT SEEMS TO BE WORSE WHEN THE A/C IS BEING USED (I.E.SUMMER MONTHS). THIS HAS ALMOST CAUSED ACCIDENTS ON SEVERAL OCCASIONS WHEN WE FIRST NOTICED IT. NOW WE TRY TO REMEMBER TO BE AWARE BUT WE WANT IT FIXED. WE HAVE TAKEN IT TO BE FIXED AND THEY CAN'T FIGURE OUT WHAT THE CAUSE IS. PLEASE HELP US GET THIS FIXED OR RECALLED. *TR
NHTSA ODI #10416424
48,500 miles · Jul 30, 2011
Unknown Or Other
INVOLUNTARY AND UNEXPECTED SUDDEN "LUNGING" WHEN STARTING, STOPPING, OR AT "IDLE" SPEED. USUALLY "LUNGES" FORWARD WHEN LIGHT PRESSURE IS APPLIED TO BRAKE AT "IDLE". FOOT IS NOT NECESSARILY ON THE ACCELERATOR. OCCURS IN GARAGE, PARKING LOTS, AND AT STOP LIGHT. COULD RESULT IN PERSONAL INJURY OR DAMAGE.
NHTSA ODI #10417230
51,666 miles · Jul 30, 2011
Unknown Or Other
THIS CAR HAS BEEN LURCHING FORWARD WHEN PUT IN PARK FOR THE LAST MONTH OR SO. ON THE DATE OF THE INCIDENT, WHEN I PULLED OUT OF THE PARKING SPACE THE ENGINE HESITATED A COUPLE OF TIMES LIKE IT WAS GOING TO CUT OFF. IT LURCHED FORWARD JUST BEFORE I PULLED OUT INTO THE ROAD. AS I CAME TO A YIELD SIGN I HAD TO STOP FOR TRAFFIC. …
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THIS CAR HAS BEEN LURCHING FORWARD WHEN PUT IN PARK FOR THE LAST MONTH OR SO. ON THE DATE OF THE INCIDENT, WHEN I PULLED OUT OF THE PARKING SPACE THE ENGINE HESITATED A COUPLE OF TIMES LIKE IT WAS GOING TO CUT OFF. IT LURCHED FORWARD JUST BEFORE I PULLED OUT INTO THE ROAD. AS I CAME TO A YIELD SIGN I HAD TO STOP FOR TRAFFIC. WHEN IT WAS MY TURN TO GO, THE CAR MOVED FORWARD BUT AS IF THE EMERGENCY BRAKE WAS ON (SLOW AND LABORED). I DROVE TO THE NEXT PARKING LOT AND PULLED INTO A PARKING SPACE AND CALLED MY HUSBAND TO COME GET ME AND WE TOOK THE CAR STRAIGHT TO THE DEALERSHIP. IT WAS SUNDAY EVENING SO WE LEFT IT THERE WITH A DETAILED REPORT AS TO WHAT HAPPENED. BY MONDAY EVENING WE PICKED UP THE REPAIRED CAR AND CONTACTED THIS ORGANIZATION. THE THROTTLE BODY -AIR INTAKE WAS REPLACED.
NHTSA ODI #10417228
69,900 miles · Jul 27, 2011
Unknown Or OtherVehicle Speed ControlCrash
SEVERAL TIMES MY VEHICLE SURGES FORWARD WHEN MOVING AT SLOW SPEEDS OR BRAKING. THIS HAS HAPPENED WHILE DRIVING FORWARD AND REVERSE. MORE NOTICEABLE WHEN THE A/C IS ON. EVEN WHEN MY FOOT IS ON THE BRAKE . I CAN HEAR THE ENGINE REVVING WHEN THIS IS HAPPENING - EVEN THOUGH MY FOOT IS ON THE BRAKE.IT ALSO LOSES POWER ON THE FREEWAY …
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SEVERAL TIMES MY VEHICLE SURGES FORWARD WHEN MOVING AT SLOW SPEEDS OR BRAKING. THIS HAS HAPPENED WHILE DRIVING FORWARD AND REVERSE. MORE NOTICEABLE WHEN THE A/C IS ON. EVEN WHEN MY FOOT IS ON THE BRAKE . I CAN HEAR THE ENGINE REVVING WHEN THIS IS HAPPENING - EVEN THOUGH MY FOOT IS ON THE BRAKE.IT ALSO LOSES POWER ON THE FREEWAY AND BECOMES VERY SLUGGISH IN ACCELERATION.THE VEHICLE WOULD LOSE POWER UNEXPECTEDLY WHEN DRIVING 10 MPH AND UP. ALSO I HAD A MINOR ACCIDENT,THE VEHICLE ACCELERATED BY ITSELF AND I HIT A WALL IN MY GARAGE. ALSO, IT WOULD NOT GO FORWARD AND WHEN PUT IN REVERSE IT WOULD ACCELERATE--THIS HAPPENED IN THE MIDDLE OF TRAFFIC DURING RUSH HOUR. WE FINALLY TOOK IT TO THE DEALER TO HAVE IT LOOKED AT, THEY TOLD US IT WAS THE THROTTLE BODY AND OUR MASTER TECH GUARANTEE DID NOT COVER THE EXPENSE. ALL THEY DID WAS CLEAN THE THROTTLE UP (IS EXPECTED TO HAVE MORE PROBLEMS LATER) BECAUSE THE COST WAS OVER $700 AND WE CANNOT AFFORD IT AT THE TIME. SO, AFTER WE TOOK IT OUT OF THE SHOP THE CAR IS NOW ONLY ACCELERATING TO NO MORE THAN 4000
NHTSA ODI #10416038
64,900 miles · Jul 25, 2011
Engine And Engine CoolingUnknown Or OtherCrash
SEVERAL TIMES MY VEHICLE SURGES FORWARD WHEN MOVING AT SLOW SPEEDS OR BRAKING. THIS HAS HAPPENED WHILE DRIVING FORWARD AND REVERSE. MORE NOTICEABLE WHEN THE A/C IS ON. EVEN WHEN MY FOOT IS ON THE BRAKE . I CAN HEAR THE ENGINE REVVING WHEN THIS IS HAPPENING - EVEN THOUGH MY FOOT IS ON THE BRAKE.IT ALSO LOSES POWER ON THE FREEWAY…
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SEVERAL TIMES MY VEHICLE SURGES FORWARD WHEN MOVING AT SLOW SPEEDS OR BRAKING. THIS HAS HAPPENED WHILE DRIVING FORWARD AND REVERSE. MORE NOTICEABLE WHEN THE A/C IS ON. EVEN WHEN MY FOOT IS ON THE BRAKE . I CAN HEAR THE ENGINE REVVING WHEN THIS IS HAPPENING - EVEN THOUGH MY FOOT IS ON THE BRAKE.IT ALSO LOSES POWER ON THE FREEWAY AND BECOMES VERY SLUGGISH IN ACCELERATION.THE VEHICLE WOULD LOSE POWER UNEXPECTEDLY WHEN DRIVING 10 MPH AND UP. ALSO I HAD A MINOR ACCIDENT,THE VEHICLE ACCELERATED BY ITSELF AND I HIT A WALL IN MY GARAGE. ALSO, IT WOULD NOT GO FORWARD AND WHEN PUT IN REVERSE IT WOULD ACCELERATE--THIS HAPPENED IN THE MIDDLE OF TRAFFIC DURING RUSH HOUR. WE FINALLY TOOK IT TO THE DEALER TO HAVE IT LOOKED AT, THEY TOLD US IT WAS THE THROTTLE BODY AND OUR MASTER TECH GUARANTEE DID NOT COVER THE EXPENSE. ALL THEY DID WAS CLEAN THE THROTTLE UP (IS EXPECTED TO HAVE MORE PROBLEMS LATER) BECAUSE THE COST WAS OVER $700 AND WE CANNOT AFFORD IT AT THE TIME. SO, AFTER WE TOOK IT OUT OF THE SHOP THE CAR IS NOW ONLY ACCELERATING TO NO MORE THAN 4000 RPMS.
NHTSA ODI #10415881
120,000 miles · Jul 22, 2011
Unknown Or Other
UNEXPECTED ACCELERATION. VECHICLE "SURGES" UNEXPECTEDLY WHILE FOOT IS ON BRAKE. WHILE DRIVING YESTERDAY ON I-275 (N) AT THE I-96 JUNCTION, TRAFFIC WAS HEAVY AND HAD TO SLOW DOWN AND IN SOME CASES, STOP THE VEHICLE. VEHICLE "LUNGED" UNEXPECTEDLY SEVERAL TIMES WHILE FOOT WAS FIRMLY ON BRAKE. VECHILE "CHECK ENGINE LIGHT" ICON T…
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UNEXPECTED ACCELERATION. VECHICLE "SURGES" UNEXPECTEDLY WHILE FOOT IS ON BRAKE. WHILE DRIVING YESTERDAY ON I-275 (N) AT THE I-96 JUNCTION, TRAFFIC WAS HEAVY AND HAD TO SLOW DOWN AND IN SOME CASES, STOP THE VEHICLE. VEHICLE "LUNGED" UNEXPECTEDLY SEVERAL TIMES WHILE FOOT WAS FIRMLY ON BRAKE. VECHILE "CHECK ENGINE LIGHT" ICON TURNED ON AS WELL AS A " WRENCH" ICON ON THE LEFT SIDE OF THE ODOMETER. ONCE THE ICONS APPEARED THE VECHILE "STALLED" AND NEEDED TO BE RESTARTED. PULLED OFF TO THE SIDE OF FREEWAY, TURNED ENGINE OFF AND WAITED APPROXIMATELY 10 MINUTES. RESTARTED VECHILE AND NOTICED THAT THE "CHECK ENGINE" ICON REMAINED ON BUT THE SMALL "WRENCH" ICON WAS OFF. DROVE HOME WITHOUT FURTHER INCIDENT. GOING TO FORD DEALERSHIP THIS MORNING. *TT
NHTSA ODI #10414630
72,000 miles · Jul 21, 2011
Unknown Or Other
WHEN IDLING, OR JUST BEGINNING TO GO FORWARD, CAR LUNGED/SURGED FORWARD. WHEN JUST BEGINNING TO GO IN REVERSE, CAR LUNGED/SURGED BACKWARD. LUNGES/SURGES INCREASED IN FREQUENCY AND SPEED. THE DEALERSHIP SERVICE DEPT. DETERMINED THAT THE ELECTRONIC THROTTLE BODY NEEDED TO BE REPLACED.
NHTSA ODI #10414596
NHTSA investigations
2PE11018 · Idle Instability
Opened May 11, 2011 · Closed Feb 7, 2013
Status: closed (inferred from source dates) · Vehicle Speed Control
On November 29, 2012, Ford Motor Company (Ford) initiated Customer Satisfaction Program 12N03 to extend warranty coverage terms for repair of engine idle RPM surge caused by throttle body deposits in all model year (MY) 2005 through 2007 Ford Freestyle, Five Hundred and Mercury Montego vehicles.The program extends the coverage for up to 10 years of service or 150,000 miles from the warranty start date of the vehicle (all vehicles are eligible for the program through May 31, 2013, regardless of mileage).Dealers will repair vehicles exhibiting the condition by removing and cleaning the throttle body and reprogramming the PCM with software containing an updated idle speed control strategy.According to Ford, some of the affected vehicles may experience momentary, intermittent engine idle RPM surge (idle flare) when stopped or during low speed driving maneuvers such as in a parking lot or driveway.Unstable idle speed control (dips and flares) around the target engine speed (700 rpm) can occur in vehicles with deposit build-up in the throttle body when the system adjusts engine speed in response to changes in engine load, typically from power steering application or air-conditioner compressor cycling.Idle speed control logic is only active at vehicle speeds below 3.5 mph and when the accelerator pedal is not applied.Ford testing of a vehicle with a worst case throttle body measured a maximum idle flare of 1360 RPM lasting approximately 1 second, which Ford indicated was consistent with system design to limit vehicle speed and acceleration in idle control mode.Ford indicated that the test vehicle was held in place with normal brake effort and that vehicle speed remained under 4 mph without the brake pedal applied.In addition to throttle body deposit accumulation, symptoms associated with the condition may include Check Engine lamp illumination and diagnostic trouble codes (DTCs) P0505, P0506 or P061B.Ford attributed the surge condition to changes in idle air flow resulting from the progressive buildup of deposits in the throttle body from normal Positive Crankcase Ventilation (PCV) system operation.This condition was not adequately compensated for in the original Powertrain Control Module (PCM) calibration.Ford issued a technical service bulletin on August 15, 2011 (TSB 11-8-5), releasing an updated powertrain control calibration for vehicles with CVT transmissions.On October 19, 2011, Ford issued a second bulletin (TSB 11-10-21) superseding TSB 11-8-5 and including updated powertrain control calibration for vehicles with 6-speed transmissions.Prior to Ford issuing the TSB?s, owner?s experiencing the alleged defect either received no repairs, if dealers could not duplicate the condition, or had the throttle body cleaned or replaced, which only provided temporary correction until the throttle deposit build-up returned.Ford?s revised powertrain calibrations appear to be effective remedies for the idle instability caused by build-up of throttle body deposits.However, even after the TSB?s were released, many owners experiencing the condition continued to have difficulty with proper diagnosis and repair as dealers were often either unable to duplicate the condition or were unfamiliar with the new repair procedures.Ford's new program addresses those concerns.NHTSA's testing and complaint analysis indicate that the idle speed control issue in the subject vehicles can only occur at very low speeds, are very brief events, are easily controlled by moderate brake pedal forces and result in minor increases in vehicle speed even with no braking.This investigation is closed.The closing of this in
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