← New search

2008 Ford Focus

Owner reports · Recalls · Investigations

Similar to other model years

Owner complaints for the 2008 Ford Focus do not stand out strongly from the model-year median of 864.5.

About this comparison →

When problems were reported

Mileage at the reported incident

199 reports with mileage · 51 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.

  • Electrical System. Review the 57 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Structure. Review the 41 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Air Bags. Review the 26 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

21 crash reports0 fire reports18 injury reports

Suspension complaints

23 reports
Clear category filter
79,000 miles · Feb 7, 2013
Suspension

ON THIRD SET OF TIRES RATED FOR 75K TO 80K BECAUSE OF MANUFACTURE DEFECT. CAR IS IN SHOP HAVING ANOTHER FRONT & REAR WHEEL ALIGNMENT DONE AFTER PURCHASING NEW TIRES AGAIN. SHOP SAYS THEY RECOMMEND INSTALLING AFTER MARKET CAMBERS THAT WILL HOPEFULLY HELP THE DEFECT IN DESIGN AT A COST TO ME FOR $510.00. I'VE GONE ON-LINE AND TH…

Read full complaint

ON THIRD SET OF TIRES RATED FOR 75K TO 80K BECAUSE OF MANUFACTURE DEFECT. CAR IS IN SHOP HAVING ANOTHER FRONT & REAR WHEEL ALIGNMENT DONE AFTER PURCHASING NEW TIRES AGAIN. SHOP SAYS THEY RECOMMEND INSTALLING AFTER MARKET CAMBERS THAT WILL HOPEFULLY HELP THE DEFECT IN DESIGN AT A COST TO ME FOR $510.00. I'VE GONE ON-LINE AND THIS IS A COMMON PROBLEM AND SAFETY ISSUE. THE TIRES WEAR OUT REGARDLESS OF THE LENGTH OF WARRANTY USUALLY WITHIN 6K TO 30K MILES. THE TIRES WEAR OUT ON THE INSIDE CAUSING CUPPING EVEN WITH REGULAR TIRE ROTATIONS EVERY 6K MILES. I SPOKE WITH FORD AND THEY REFUSE TO ACKNOWLEDGE THAT THEIR IS A PROBLEM. THE ON-LINE FORUMS REGARDING THIS ISSUE OTHER FORD OWNERS HAVE STATED THEY ALSO CONTACTED FORD AND WAS TOLD THE SAME THING. *TR

NHTSA ODI #10496719

28,000 miles · Apr 20, 2012
Suspension

TL* THE CONTACT OWNS A 2008 FORD FOCUS. THE CONTACT STATED THAT THE VEHICLE JERKED VIOLENTLY WHILE DRIVING OVER BUMPS AT VARIOUS SPEEDS. THE VEHICLE WOULD ALSO EMIT LOUD NOISES WHEN THE FAILURE OCCURRED. THE VEHICLE WAS TAKEN TO THE DEALER, WHO DIAGNOSED THAT THE FRONT STABILIZERS NEEDED TO BE REPLACED. THE MANUFACTURER WAS MADE…

Read full complaint

TL* THE CONTACT OWNS A 2008 FORD FOCUS. THE CONTACT STATED THAT THE VEHICLE JERKED VIOLENTLY WHILE DRIVING OVER BUMPS AT VARIOUS SPEEDS. THE VEHICLE WOULD ALSO EMIT LOUD NOISES WHEN THE FAILURE OCCURRED. THE VEHICLE WAS TAKEN TO THE DEALER, WHO DIAGNOSED THAT THE FRONT STABILIZERS NEEDED TO BE REPLACED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND OFFERED NO ASSISTANCE. THE MANUFACTURER STATED THAT THE FAILURE WAS NOT A SAFETY HAZARD. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 28,000 AND THE CURRENT MILEAGE WAS 31,000.

NHTSA ODI #10455837

Mileage unknown · Jan 19, 2012
SuspensionVisibilityWheels

FORD DEALER HAD FIXED FRONT WHEEL BEARINGS UNDER WARRANTY, BUT WILL NOT FIX REAR WHEEL BEARINGS UNDER WARRANTY. CAR MAKES A ROARING NOISE WHILE DRIVING. I THINK THE REAR PARTS ON THE CAR HAVE BEEN RECALLED, BUT THE DEALER WANTS TO CHARGE ME $490 TO FIX. ALSO I PAID $25 FROM THE FORD DEALER FOR WIPERS THAT KEEP SCRAPING THE WI…

Read full complaint

FORD DEALER HAD FIXED FRONT WHEEL BEARINGS UNDER WARRANTY, BUT WILL NOT FIX REAR WHEEL BEARINGS UNDER WARRANTY. CAR MAKES A ROARING NOISE WHILE DRIVING. I THINK THE REAR PARTS ON THE CAR HAVE BEEN RECALLED, BUT THE DEALER WANTS TO CHARGE ME $490 TO FIX. ALSO I PAID $25 FROM THE FORD DEALER FOR WIPERS THAT KEEP SCRAPING THE WINDSHIELD AND GIVE ME POOR VISIBILITY. *TT

NHTSA ODI #10444596

20,000 miles · Sep 26, 2011
Suspension

HAVING PROBLEMS WITH TIRES CUPPING. HAD IT REALIGNED AROUND 20,000 MILES BECAUSE FORD ONLY COVERS WHEEL ALIGNMENT UP TO 12,000 MILES. I PURCHASED NEW TIRES AROUND 35,000 MILES, HAD IT REALIGNED AGAIN AROUND 36,000 MILES. I TOOK THE CAR IN TO COSTCO WHERE I BOUGHT THE NEW BRIDGESTONE TIRES FOR TIRE ROTATION AND THEY SAID THE TI…

Read full complaint

HAVING PROBLEMS WITH TIRES CUPPING. HAD IT REALIGNED AROUND 20,000 MILES BECAUSE FORD ONLY COVERS WHEEL ALIGNMENT UP TO 12,000 MILES. I PURCHASED NEW TIRES AROUND 35,000 MILES, HAD IT REALIGNED AGAIN AROUND 36,000 MILES. I TOOK THE CAR IN TO COSTCO WHERE I BOUGHT THE NEW BRIDGESTONE TIRES FOR TIRE ROTATION AND THEY SAID THE TIRES WERE CUPPING !! SAME PROBLEM, ALIGNMENT DON'T HELP. AFTER RESEARCHING ON THE INTERNET, I SEE MANY PEOPLE HAVE THIS SAME PROBLEM WITH THE FORD FOCUS. *TR

NHTSA ODI #10427149

130,442 miles · Aug 2, 2011
Electrical SystemStructureSuspension

I PURCHASED A '08 FORD FOCUS- 4DR SDN SE IN MARCH '08 FROM MARK MARTIN FORD IN BATESVILLE, AR. JULY '08, DOORS LOCKED & WOULDN'T OPEN. SINCE THE ORIGINAL DELIVERY OF THE VEHICLE, IT'S BEEN RETURNED TO DEALERSHIP 14+ TIMES. VEHICLE HAS BEEN OUT OF SERVICE FOR REPAIRS FOR A TOTAL OF 209 CALENDAR DAYS (JUST FROM MAY 14,'10-DEC. 31,…

Read full complaint

I PURCHASED A '08 FORD FOCUS- 4DR SDN SE IN MARCH '08 FROM MARK MARTIN FORD IN BATESVILLE, AR. JULY '08, DOORS LOCKED & WOULDN'T OPEN. SINCE THE ORIGINAL DELIVERY OF THE VEHICLE, IT'S BEEN RETURNED TO DEALERSHIP 14+ TIMES. VEHICLE HAS BEEN OUT OF SERVICE FOR REPAIRS FOR A TOTAL OF 209 CALENDAR DAYS (JUST FROM MAY 14,'10-DEC. 31,'10). IT IS DOCUMENTED THAT THE CAR STARTED HAVING PROBLEMS BEFORE 12,000 MI. HAVE BEEN IN CONTACT WITH THE AR ATTY. GEN'S OFF, FORD MOTOR COMPANY, FORD CREDIT, MARK MARTIN FORD. STARTED LEMON LAW PROCEEDINGS & HAD AN ARBITRATION MEETING SET IN JAN. '11. FORD CUSTOMER CARE WAS WORKING ON A BUYBACK/REPLACEMENT. FORD WANTED A SECOND OPINION. I TOOK IT TO ANOTHER DEALERSHIP. FORD MADE MANY ATTEMPTS TO REPAIR THE VEHICLE. I SENT A DEMAND LETTER TO FORD. THEY DIDN'T ATTEMPT TO DO A FINAL FIX. INSTEAD THEY REPOSSESSED THE CAR. I WAS ONLY 2 MOS BEHIND & MADE ARRANGEMENTS W/FORD CREDIT TO MAKE A PAYMENT IN DEC. '10. I DID. I HAVE A LETTER FROM MARK MARTIN FORD STATING,"THEY HAVE DONE ALL THEY KNOW TO DO." I HAVE A LETTER FROM FORD STATING, "ALTHOUGH THEY ADMIT TO NO WRONG DOING ON THEIR PART, THEY WANT ME TO BE A SATISFIED CUSTOMER & ARE WILLING TO WAIVE THE BALANCE I OWE" (YET IT'S ON MY CREDIT REPORT). THE AR ATTY GEN'S OFF SAYS I HAVE A CASE. VEHICLE HAS BEEN IN MARK MARTIN FORD ON THESE DATES FOR REPAIRS/DEFECTS:7/30/08-RR DOOR STAYS LOCKED;7/30/08-RUMBLE SOUND WHEN DRIVING;10/08/08-DRS HARD TO OPEN W/OUTSIDE HANDLE;10/08/08-RR DR WONT UNLOCK;10/08/08-STARTER HUNG AFTER CAR STARTED;10/08/08-DUST LEAKING IN RR & LF;3/16/09-RR;3/16/09-RR DR WEATHER-STRIPPING FALLING DOWN;3/16/09-POPPING NOISE IN RF&LF;3/26/09-LR DR WONT UNLOCK;8/07/09-LR TIRE SENSOR OFF;06/09/10-LFRONT DR WONT OPEN FROM OUTSIDE;06/09/10-LR DR WONT OPEN;06/09/10-DR SEAL LEAKING DUST IN;8/21/10-LREAR DR WONT OPEN FROM;8/21/10-DUST COMING IN

NHTSA ODI #10417421

32,000 miles · Jul 5, 2011
Suspension

MY TIRES WILL NOT LAST OVER 1000 TO 2000 MILES WITHOUT STARTING TO WHINE FROM CUFFING ON THE EDGES. FORD DID NOT PROVIDE ANY CHAMBER ADJUSTMENT IN FRONT OR BACK AND THE CAR WEARS OUT TIRES VERY QUICKLY. I HAVE A LITTLE OVER 61,000 MILES ON MY 2008 AND AM ON MY FIFTH SET OF TIRES. I HAVE ADDED REPLACEMENT ARMS TO THE REAR FOR …

Read full complaint

MY TIRES WILL NOT LAST OVER 1000 TO 2000 MILES WITHOUT STARTING TO WHINE FROM CUFFING ON THE EDGES. FORD DID NOT PROVIDE ANY CHAMBER ADJUSTMENT IN FRONT OR BACK AND THE CAR WEARS OUT TIRES VERY QUICKLY. I HAVE A LITTLE OVER 61,000 MILES ON MY 2008 AND AM ON MY FIFTH SET OF TIRES. I HAVE ADDED REPLACEMENT ARMS TO THE REAR FOR CAMBER ADJUSTMENT AND CAMBER PLATES TO THE FRONT. DEALER AT FIRST TOLD ME TO ROTATE MY TIRES MORE OFTEN AND THEN ADMITTED THAT THE FOCUS MODEL HAS A PROBLEM WITH EATING TIRES. CONTACTED FORD TO NO AVAIL. *KB

NHTSA ODI #10410434

Mileage unknown · May 18, 2011
Suspension

2008 FORD FOCUS. CONSUMER STATES VEHICLE SHOULD BE REPLACED OR A GENEROUS TRADE ALLOWANCE BE OFFERED DUE TO PROBLEMS WITH REAR TIRE WEAR AND SUSPENSION *TGW THE CONSUMER STATED THE REAR TIRES WERE WEARING UNEVENLY AND EXCESSIVELY. THE VEHICLE WAS TAKEN TO THE DEALER AND THEY CLAIMED THE PROBLEM WAS FIXED. HOWEVER, THE TIRES HAD…

Read full complaint

2008 FORD FOCUS. CONSUMER STATES VEHICLE SHOULD BE REPLACED OR A GENEROUS TRADE ALLOWANCE BE OFFERED DUE TO PROBLEMS WITH REAR TIRE WEAR AND SUSPENSION *TGW THE CONSUMER STATED THE REAR TIRES WERE WEARING UNEVENLY AND EXCESSIVELY. THE VEHICLE WAS TAKEN TO THE DEALER AND THEY CLAIMED THE PROBLEM WAS FIXED. HOWEVER, THE TIRES HAD TO BE REPLACED THREE TIMES. THE CONSUMER STATED THE PROBLEM HAS RETURNED AGAIN. FORD REFUSED TO PURCHASE THE VEHICLE BACK FROM THE CONSUMER. *JB

NHTSA ODI #10401891

8,000 miles · Nov 18, 2010
Suspension

TL*THE CONTACT OWNS 2008 FORD FOCUS. THE CONTACT HAD TO REPLACE THE REAR TIRES ON THE VEHICLE FIVE TIMES. THE CONTACT TOOK HIS VEHICLE TO THE DEALER FOR MAINTENANCE AND THEY INFORMED HIM THAT THE REAR ALIGNMENT FAILED. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 8,000.

NHTSA ODI #10366718

30,485 miles · Oct 27, 2010
SuspensionTires

I WENT AND GOT NEW TIRES AND ALIGNMENT IN SEP.2009 AND WITHIN 10000 MILES ON 03-06-10 MY TIRES WERE CHOPPED ON THE INSIDE THE DEALER WERE I HAD GOT MY CAR FROM HAD TOLD ME THAT IT WAS CAUSED BY THE ALIGNMENT SO I WENT BACK WERE I GOT THE TIRES DONE THEY HAD TOLD ME IT WAS MY STRUTS THEY WENT AHEAD AN PUT NEW TIRES ON AND I WENT …

Read full complaint

I WENT AND GOT NEW TIRES AND ALIGNMENT IN SEP.2009 AND WITHIN 10000 MILES ON 03-06-10 MY TIRES WERE CHOPPED ON THE INSIDE THE DEALER WERE I HAD GOT MY CAR FROM HAD TOLD ME THAT IT WAS CAUSED BY THE ALIGNMENT SO I WENT BACK WERE I GOT THE TIRES DONE THEY HAD TOLD ME IT WAS MY STRUTS THEY WENT AHEAD AN PUT NEW TIRES ON AND I WENT TO FORD GARAGE IN CRESTON NOT WERE I GOT THE CAR THEY HAD CHECK MY STRUTS THEY SAID THEY WERE OK I HAD THEM REDONE THE ALIGNMENT TWO DAYS AFTER THE NEW TIRES WERE PUT ON AND SO I PAID FOR TWO ALIGNMENT AND AFTER 5000 MILES MY TIRES WERE CHOPPED ON THE INSIDE THE DEALER IN CRESTON GOT A HOLD OF FORD MOTORS TO SEE WHAT THE DEAL WAS AND INSPECT EVERYTHING AND HAD TO SET MY ALIGNMENT AT DIFFERENT SETTING AND THEN MY CAR STARTED MAKING SQUEAKING NOISES THEY ENDING UP CHANGING MY BACK STRUTS AND THEN MY TIRES GOT WORSE AND MY CAR IS STILL MAKING THE NOISES AND I TOLD THEM THAT THEY SHOULD HAVE TO REPLACE MY TIRES AND THEY WONT AND NOW THEY WONT EVENING LOOK AT MY CAR AND DIDN'T"T EVENING FIX THE CAR AND HAD IT ALL DAY FOR AT LEAST SIX HOURS AND TOLD ME TO TAKE IT WERE I GOT THE CAR FORM WHICH I LIVE 100 MILES AND FROM THEIR. THROUGH OUT THIS HOLE TIME THEY HAD TOLD ME THAT IT"S AS BE A PROBLEM ON MOST 2008 AND 2009 MODELS THE CHOPPED THEY ARE TELLING ME IT"S THE BRAND THAT I WENT WITH. *TR

NHTSA ODI #10362724

33 miles · Aug 15, 2010
Electrical SystemLatches/locks/linkagesSeat Belts

THE DOOR LOCK, LOCKS AND YOU CANT OPEN THEM TO GET IN OR OUT OF THE CAR IF YOU WONT IN OR OUT YOU HAVE TO CRAWL THROUGH THE WINDOWS. THE FRONT END OF THE CAR WILL NOT STAY ALIGNED EATS UP TIRES. HEAD LIGHTS. WE HAVE HAD THIS CAR IN THE DEALERS MANY TIMES THEY TELL ME THAT ITS NORMAL. THIS CAR HAS BEEN A LEMON SINCE THE DAY I DR…

Read full complaint

THE DOOR LOCK, LOCKS AND YOU CANT OPEN THEM TO GET IN OR OUT OF THE CAR IF YOU WONT IN OR OUT YOU HAVE TO CRAWL THROUGH THE WINDOWS. THE FRONT END OF THE CAR WILL NOT STAY ALIGNED EATS UP TIRES. HEAD LIGHTS. WE HAVE HAD THIS CAR IN THE DEALERS MANY TIMES THEY TELL ME THAT ITS NORMAL. THIS CAR HAS BEEN A LEMON SINCE THE DAY I DROVE IT OFF THE LOT BUT THEY WOULD NEVER FIX THE PROBLEMS. *TR

NHTSA ODI #10349430

Official recalls

1

07V541000 · Air Bags:frontal:driver Side:inflator Module

Nov 21, 2007

CERTAIN VEHICLES FAIL TO CONFORM TO THE REQUIREMENTS SPECIFIED IN FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 208, 'OCCUPANT CRASH PROTECTION.' THE DRIVER AIR BAG MODULE MAY NOT HAVE BEEN PROPERLY ASSEMBLED.

Consequence & remedy

Consequence: THIS CONDITION MAY PREVENT THE DRIVER AIR BAG FROM PROPERLY DEPLOYING AND REDUCE OCCUPANT PROTECTION IN THE EVENT OF A CRASH.

Remedy: DEALERS WILL REPLACE YOUR DRIVER AIR BAG MODULE FREE OF CHARGE. THE RECALL BEGAN ON NOVEMBER 20, 2007. 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