The vehicle dossier US · 2008

2008 Mercury
GRAND MARQUISProblems & recalls

79 distinct owner reports in the NHTSA snapshot. Other components appears in 31 of them. Explore what was reported—and which official actions are on file.

Snapshot Sep 28, 2026Live NHTSA complaint API How this dossier is compiled

01 / Owner-reported evidence

What owners reported.

Categories attached to 79 distinct reports. A report can mention more than one component, so category totals can overlap.

Other components31 reports
Steering22 reports
Brakes10 reports
Engine9 reports
Electrical system9 reports
Body & structure9 reports
Fuel system4 reports
Air bags3 reports
Transmission & drivetrain3 reports
Suspension1 reports
See original component labels
STEERING21
VEHICLE SPEED CONTROL13
ELECTRICAL SYSTEM8
STRUCTURE:BODY5
SERVICE BRAKES5
EXTERIOR LIGHTING5
SERVICE BRAKES, HYDRAULIC4
ENGINE4
ENGINE AND ENGINE COOLING3
UNKNOWN OR OTHER3
STRUCTURE3
SEAT BELTS3
POWER TRAIN3
VEHICLE SPEED CONTROL:ACCELERATOR PEDAL2
ELECTRONIC STABILITY CONTROL (ESC)2
FUEL/PROPULSION SYSTEM2
AIR BAGS2
EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.1
STRUCTURE:BODY:HOOD:HINGE AND ATTACHMENTS1
EQUIPMENT1
SUSPENSION:REAR1
ENGINE AND ENGINE COOLING:COOLING SYSTEM1
AIR BAGS:FRONTAL1
ENGINE AND ENGINE COOLING:ENGINE1
EQUIPMENT:APPLIANCE:AIR CONDITIONER1
SERVICE BRAKES, HYDRAULIC:PEDALS AND LINKAGES1
FUEL SYSTEM, GASOLINE1
SEATS1
FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY:MOUNTING1
ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL1
STEERING: STEERING WHEEL/HANDLE BAR1

These are reports made to NHTSA, not verified diagnoses. More reports can reflect more vehicles, more time on the road, or greater reporting activity.

The reporting timeline

When reports arrived.

Reports by year filed, not by the year a problem occurred. Showing the latest 15 years with reports.

Year filed (last two digits)Latest report: Sep 21, 2026
Mileage, where supplied

46,329 miles is the median among 66 reports with usable mileage. The middle half spans 17,000–68,000 miles.

This describes the submitted reports. It does not predict when a vehicle will fail.

02 / Official safety campaigns

3 recall campaigns on file.

A campaign can cover only certain production dates or configurations. The count does not tell you whether an individual car has an open recall.

Nov 5, 2014 Safety recallSTEERING:RACK AND PINION:PINION SHAFTCampaign 14V704000

Reported concern

Ford Motor Company (Ford) is recalling certain model year 2005-2011 Ford Crown Victoria, 2005-2011 Mercury Grand Marquis vehicles manufactured March 23, 2004, to August 30, 2011, and 2005-2011 Lincoln Town Car vehicles manufactured March 8, 2004, to August 30, 2011, and on which the upper intermediate shaft was serviced during the course of safety recall 13V-385. The prior repairs may not have been correctly performed.

Manufacturer’s stated response

Ford will notify the owners of vehicles whose repair records reflect that the upper intermediate steering shaft was repaired during the course of the prior recall 13V-385. Dealers will inspect and replace the upper immediate shaft if necessary free of charge. The recall began November 17, 2014. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 14S25.

Manufacturer campaign: 14S25

Read campaign 14V704000 at NHTSA
Aug 29, 2013 Safety recallSTEERINGCampaign 13V385000

Reported concern

Ford is recalling certain model year 2005-2011 Ford Crown Victoria (including Crown Victoria Police Interceptors), Mercury Grand Marquis, and Lincoln Town Car vehicles. The affected vehicles are currently registered or were originally sold in Connecticut, Delaware, the District of Columbia, Illinois, Indiana, Iowa, Kentucky, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, Virginia, West Virginia, and Wisconsin. Severe corrosion can seize the lower intermediate shaft which may cause the upper intermediate shaft to collapse and the steering column lower bearing to separate.

Manufacturer’s stated response

Ford will notify owners and dealers will replace the lower intermediate shaft, free of charge. The upper intermediate shaft and steering column lower bearing will be inspected to identify any damage that may have occurred as a result of lower intermediate shaft corrosion, and repaired or replaced as necessary. If the steering column lower bearing has separated, a retainer clip will be installed. The recall began on October 23, 2013. Owners may contact Ford at 1-866-436-7332. Ford's recall number is 13S08.

Manufacturer campaign: 13S08

Read campaign 13V385000 at NHTSA
Jun 26, 2007 Safety recallSUSPENSION:FRONT:HUBCampaign 07V270000

Reported concern

ON CERTAIN PASSENGER VEHICLES, A FRONT WHEEL BEARING AND HUB ASSEMBLY MAY FRACTURE DUE TO IMPROPER HEAT TREATMENT.

Manufacturer’s stated response

DEALERS WILL INSPECT BOTH FRONT WHEEL BEARING AND HUB ASSEMBLIES AND REPLACE THEM FREE OF CHARGE. THE RECALL BEGAN ON JUNE 22, 2007. OWNERS MAY CONTACT FORD AT 1-800-392-3673.

Manufacturer campaign: 07S54

Read campaign 07V270000 at NHTSA
Check this car’s VIN at NHTSA

03 / The manufacturer’s record

Instructions. Updates. Responses.

16 distinct communications list this model-year. Showing the latest 12. A matching model-year does not establish that every engine, trim or reported symptom is covered.

Sep 18, 2019 Service Bulletin/Repair InstructionsDOR-L2Q6V-10This SKU is a Radiator Fan. The customer communication requested return of unsold inventory to inspect the electrical connections. An electrical connection issue may lead to the fan not working potentially throwing a check engi…NHTSA ID 10166447

This SKU is a Radiator Fan. The customer communication requested return of unsold inventory to inspect the electrical connections. An electrical connection issue may lead to the fan not working potentially throwing a check engine light for overheating.

Components: ELECTRICAL SYSTEM · ENGINE. Confirm detailed applicability in the original document.

Source record 10166447 at NHTSA
Mar 30, 2018 Service Bulletin/Repair InstructionsSSM 47201Replacing the original equipment SYNC/Navigation system with either an aftermarket SYNC/Navigation kit or modifying original SYNC/Navigation parts to provide additional features is not recommended nor supported on any Ford, Mer…NHTSA ID 10137113

Replacing the original equipment SYNC/Navigation system with either an aftermarket SYNC/Navigation kit or modifying original SYNC/Navigation parts to provide additional features is not recommended nor supported on any Ford, Mercury or Lincoln vehicle. Only approved Genuine Ford accessories or originally installed systems are supported and certified to function correctly with other vehicle systems. If you suspect a system has been modified, the following resources can be used to verify original equipment: Monroney Label (Window Sticker), Professional Technician Society (PTS) OASIS tab  select SYNC or HVBOM. For Genuine Ford accessories use: PTS Workshop Tab  select Dealer Installed Accessory or Accessory Installation.

Components: EQUIPMENT. Confirm detailed applicability in the original document.

Source record 10137113 at NHTSA
Jan 24, 2017 Service Bulletin/Repair InstructionsSSM 46332REPLACING THE ORIGINAL EQUIPMENT SYNC/NAVIGATION SYSTEM WITH EITHER AN AFTERMARKET SYNC/NAVIGATION KIT OR MODIFYING ORIGINAL SYNC/NAVIGATION PARTS TO PROVIDE ADDITIONAL FEATURES IS NOT RECOMMENDED NOR SUPPORTED ON ANY FORD, MER…NHTSA ID 10095184

REPLACING THE ORIGINAL EQUIPMENT SYNC/NAVIGATION SYSTEM WITH EITHER AN AFTERMARKET SYNC/NAVIGATION KIT OR MODIFYING ORIGINAL SYNC/NAVIGATION PARTS TO PROVIDE ADDITIONAL FEATURES IS NOT RECOMMENDED NOR SUPPORTED ON ANY FORD, MERCURY OR LINCOLN VEHICLE. ONLY APPROVED GENUINE FORD ACCESSORIES OR ORIGINALLY INSTALLED SYSTEMS ARE SUPPORTED AND CERTIFIED TO FUNCTION CORRECTLY WITH OTHER VEHICLE SYSTEMS. IF YOU SUSPECT A SYSTEM HAS BEEN MODIFIED, THE FOLLOWING RESOURCES CAN BE USED TO VERIFY ORIGINAL EQUIPMENT: MONRONEY LABEL (WINDOW STICKER), PROFESSIONAL TECHNICIAN SOCIETY (PTS) OASIS TAB  SELECT SYNC OR HVBOM. FOR GENUINE FORD ACCESSORIES USE: PTS WORKSHOP TAB  SELECT DEALER INSTALLED ACCESSORY OR ACCESSORY INSTALLATION.

Components: EQUIPMENT. Confirm detailed applicability in the original document.

Source record 10095184 at NHTSA
Sep 21, 2016 Service Bulletin/Repair InstructionsSSM 46085The Powertrain Control/Emissions Diagnosis (PC/ED) manual has been revised for diagnosing electronic throttle bodies (ETBs). The ETC_ACT and ETC_DSD PIDs should not used to diagnose possible ETB concerns. The IDS has a limited …NHTSA ID 10109070

The Powertrain Control/Emissions Diagnosis (PC/ED) manual has been revised for diagnosing electronic throttle bodies (ETBs). The ETC_ACT and ETC_DSD PIDs should not used to diagnose possible ETB concerns. The IDS has a limited refresh rate when reading these PIDs and cannot display quickly enough to validate a concern. The PCM automatically monitors these inputs more accurately and will set diagnostic trouble codes (DTCs) when appropriate. Using these PIDs for diagnostics will lead to inaccurate results and improper ETB replacements. If a concern is intermittent and no DTCs are present, refer to historical DTCs and the PC/ED, Section 3 No DTCs Present Index chart for further information.

Components: ENGINE · ENGINE AND ENGINE COOLING · ENGINE AND ENGINE COOLING:COOLING SYSTEM · ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN · ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS · ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY · ENGINE AND ENGINE COOLING:ENGINE · ENGINE AND ENGINE COOLING:ENGINE:DIESEL · ENGINE AND ENGINE COOLING:ENGINE:GASOLINE · ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:BELTS AND ASSOCIATED PULLEYS · ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER · ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER · ENGINE AND ENGINE COOLING:EXHAUST SYSTEM · ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL · ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR · ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE (PCV) · ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE) · ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE. Confirm detailed applicability in the original document.

Source record 10109070 at NHTSA
Apr 21, 2016 Service Bulletin/Repair InstructionsTSB160072Inpected or repaired under 13R01 - Requests for recall service action under 13S08NHTSA ID 10205037

Inpected or repaired under 13R01 - Requests for recall service action under 13S08

Components: STEERING · STRUCTURE. Confirm detailed applicability in the original document.

Source record 10205037 at NHTSA
Apr 21, 2016 Service Bulletin/Repair Instructions16-0072For 2005-2012 Crown Victoria, 2005-2011 Grand Marquis and Town Car vehicles, Regional Program 13R01 applies to vehicles not registered in corrosion states and not included in Safety Recall 13S08, where operation in high corrosi…NHTSA ID 10183773

For 2005-2012 Crown Victoria, 2005-2011 Grand Marquis and Town Car vehicles, Regional Program 13R01 applies to vehicles not registered in corrosion states and not included in Safety Recall 13S08, where operation in high corrosion areas for an extended period may lead to corrosion in the lower intermediate steering shaft swing link. This may result in a compressed upper intermediate steering shaft and separation from the steering column, which can result in a loss of steering control. Vehicles covered under 13R01 that were inspected or repaired without replacement of the lower intermediate shaft, and have relocated to high corrosion areas, may experience subsequent corrosion of the lower intermediate steering shaft swing link.

Components: STEERING. Confirm detailed applicability in the original document.

Source record 10183773 at NHTSA
Mar 1, 2016 Service Bulletin/Repair InstructionsTSB1600324R75E Transmission - Grinding/Whine/Vibration/Gear Slippage - Serrvice Kit availableNHTSA ID 10204997

4R75E Transmission - Grinding/Whine/Vibration/Gear Slippage - Serrvice Kit available

Components: POWER TRAIN. Confirm detailed applicability in the original document.

Source record 10204997 at NHTSA
Mar 1, 2016 Service Bulletin/Repair Instructions16-00324R75E TRANSMISSION - GRINDING/WHINE/VIBRATION/GEAR SLIPPAGE - SERVICE KIT AVAILABLE ISSUE A service kit has been released to assist with proper repair of the 4R75E transmission in 2008 Mark LT, 2008-2010 F-150, 2008-2010 / 2013…NHTSA ID 10075262

4R75E TRANSMISSION - GRINDING/WHINE/VIBRATION/GEAR SLIPPAGE - SERVICE KIT AVAILABLE ISSUE A service kit has been released to assist with proper repair of the 4R75E transmission in 2008 Mark LT, 2008-2010 F-150, 2008-2010 / 2013-2014 E-Series, 2008-2011 Crown Victoria, Grand Marquis and Town Car vehicles that exhibit a grinding, whine-type noise, vibration and/or gear slippage while driving, or a loss of reverse resulting from a planetary gear assembly failure.

Components: POWER TRAIN. Confirm detailed applicability in the original document.

Source record 10075262 at NHTSA
Sep 16, 2014 Service Bulletin/Repair InstructionsRP-13R01FORD: THE LOWER INTERMEDIATE STEERING SHAFT, HAS CORROSION OF SWING LINK JOINTS, COMBINED WITH COLLAPSED UPPER INTERMEDIATE STEERING SHAFT, RESULTING IN STEERING COLUMN SEPARATION AND LOSS OF STEERING CONTROL. MODEL 2005-2011 C…NHTSA ID 10054924

FORD: THE LOWER INTERMEDIATE STEERING SHAFT, HAS CORROSION OF SWING LINK JOINTS, COMBINED WITH COLLAPSED UPPER INTERMEDIATE STEERING SHAFT, RESULTING IN STEERING COLUMN SEPARATION AND LOSS OF STEERING CONTROL. MODEL 2005-2011 CROWN VICTORIA, GRAND MARQUIS, TOWN CAR. *PE UPDATED 04/23/14 *LJ UPDATED 07/10/15 *TA UPDATED 7/15/15 *TA

Components: STEERING:GEAR BOX:SHAFT PITMAN. Confirm detailed applicability in the original document.

Source record 10054924 at NHTSA
Aug 21, 2014 Service Bulletin/Repair InstructionsTSB-14-0153FORD/LINCOLN/MERCURY: FAILURE OF PLANETARY GEAR ASSEMBLY IS DUE TO TRANSMISSION, ON CERTAIN VEHICLES, EXHIBITING GRINDING, GEAR SLIPPAGE, WHINE TYPE NOISE, VIBRATION, WHILE DRIVING OR LOSS OF REVERSE. *PENHTSA ID 10056701

FORD/LINCOLN/MERCURY: FAILURE OF PLANETARY GEAR ASSEMBLY IS DUE TO TRANSMISSION, ON CERTAIN VEHICLES, EXHIBITING GRINDING, GEAR SLIPPAGE, WHINE TYPE NOISE, VIBRATION, WHILE DRIVING OR LOSS OF REVERSE. *PE

Components: POWER TRAIN:AUTOMATIC TRANSMISSION. Confirm detailed applicability in the original document.

Source record 10056701 at NHTSA
May 1, 2014 Service Bulletin/Repair InstructionsASI-44538FORD/LINCOLN/MERCURY: THE INDICATOR MAY ILLUMINATE OVERDRIVE OFF AND/OR SLIPPING IN 3RD OR NO 4TH GEAR, DUE TO DIRECT CLUTCH FAILURE AND DIAGNOSTIC TROUBLE CODE (DTC) P0733 AND/OR P0734. MODEL 2008-2013 MARK LT, F-150, CROWN VI…NHTSA ID 10056191

FORD/LINCOLN/MERCURY: THE INDICATOR MAY ILLUMINATE OVERDRIVE OFF AND/OR SLIPPING IN 3RD OR NO 4TH GEAR, DUE TO DIRECT CLUTCH FAILURE AND DIAGNOSTIC TROUBLE CODE (DTC) P0733 AND/OR P0734. MODEL 2008-2013 MARK LT, F-150, CROWN VICTORIA, GRAND MARQUIS, TOWN CAR, E SERIES. *PE

Components: POWER TRAIN:AUTOMATIC TRANSMISSION. Confirm detailed applicability in the original document.

Source record 10056191 at NHTSA
Jul 10, 2012 Service Bulletin/Repair InstructionsTSB-12-7-4FORD/LINCOLN/MERCURY: IF BATTERY WAS DISCONNECTED OR DEAD, VEHICLES/TRUCKS MAY EXPERIENCE HARD STARTS AND ENGINE IDLE RPM FLUCTUATION AND EXHIBIT DIAGNOSTIC TROUBLE CODES (DTCS) P0505, P0506, P2111 AND P2112. *PENHTSA ID 10045340

FORD/LINCOLN/MERCURY: IF BATTERY WAS DISCONNECTED OR DEAD, VEHICLES/TRUCKS MAY EXPERIENCE HARD STARTS AND ENGINE IDLE RPM FLUCTUATION AND EXHIBIT DIAGNOSTIC TROUBLE CODES (DTCS) P0505, P0506, P2111 AND P2112. *PE

Components: ENGINE. Confirm detailed applicability in the original document.

Source record 10045340 at NHTSA
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Records below contain the NHTSA bulk summary unless a document-reviewed explainer is linked. A service bulletin is not a safety recall or a promise of a free repair. Records may be revised or superseded; verify the current document with the manufacturer.

04 / Agency investigations

Official inquiries.

An investigation is an inquiry into a potential concern. Its presence does not establish a defect, and a closed case does not certify a car’s condition.

Opened Oct 14, 2008 ClosedTIRE VALVE CRACKINGPE08060

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

Recorded closure: Apr 9, 2009

Find investigation PE08060

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