Investigations


NHTSA IDManufacturerDate openDate closeSubjectRecall campaign
TIRES - VALVE
PE08060FORD MOTOR COMPANY10/14/200804/09/2009TIRE VALVE CRACKING
 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 monitor complaints and other information relating to the alleged defect in the subject vehicles and take further action in the future if warranted.

Consumer Complaints


Fail datemilesoccurencesPurchase date
TIRES
04/06/2010175001
 Tl*the contact owns a 2008 ford fusion. the vehicle has continental, contipro-contact tires, size 225/60r17. the dot number was p5xv-46mb. the contact was driving approximately 15 mph on april 6, 2010 when the passenger side front tire exploded. the road conditions were not a factor. the vehicle was driven to the side of the road with caution. the identical failure previously occurred with another tire. a ford dealer advised the contact that they were unable to find a defect in the first tire failure; however, it could be replaced at the owners expense. the tire was replaced. the most recent tire failure had not been diagnosed by the dealer when the complaint was filed. the failure and current mileages were 17,500. updated 05/13/10 *bf the consumer stated the dealer informed her that the tire did not blow out and to disregard the complaint. updated 05/14/10
04/20/2009491001
 My wife and i rented a 2008 ford fusion from thrifty car rental on april 20, 2009. i became concerned having hearing a progressive noise emanating from the rear of the vehicle. arriving in orlando fl i had the vehicle looked at by a service station. i was informed that the rear tires where unsafe. thrifty office was informed and had no explanation. i took pictures of these tires. at 75 mph my wife and i could have been killed if these tires had ruptured!!!! *tr
12/08/20081944
 Tl*the contact owns a 2008 ford fusion. the vehicle has continental contiprocontact tires, size 225/55r17. the front passenger tire blew out while driving 35 mph. the driver pulled over to the side of the road and someone assisted her with placing the spare on the vehicle. the driver went to a wholesale club to purchase another tire and was informed that there was a defect in the inner liner. the defect created bubbles in both the front passenger tire (which had already blown out) and the rear passenger tire. the dealer stated that it appeared to be tire damage instead of a defect. the manufacturer began to create a case for the failure, but sent it back to the dealer. the current mileage was 1,954 and failure mileage was 1,944.