NHTSA Defect Investigation #EQ09006

TOW BAR ASSEMBLY FAILURE: Equipment**

CLOSED

no recall issued

** This defect investigation is filed under 2 related vehicle components.
2007 JEEP WRANGLER -- The defective tow bar assemblies involved in this recall were supplied to Chrysler for use on some of its Jeep Wrangler vehicles. The purpose of this investigation was to identify any additional purchasers of identical or substantially similar defective assemblies and to initiate additional defect reporting and safety recalls as necessary. To accomplish this rmd contacted the supplier of the assemblies, valley towing products, and confirmed no other such assemblies were distributed. This eq is therefore closed. Investigation was initiated on July 22 2009. Closed on August 19 2009. For detailed information & supporting documents, see the official NHTSA page concerning investigation #EQ09006 »

NHTSA Defect Investigation #PE09037

TRANSMISSION OVERHEATING / FIRE: Power Train**

OPEN

possible recall

** This defect investigation is filed under 3 related vehicle components.
2007 JEEP WRANGLER -- The Office Of Defects Investigation (ODI) has received three complaints alleging transmission overheating, potentially leading to fluid expulsion, which may result in a vehicle fire. One complainant alleged a fire occurred and another complainant alleged transmission fluid leakage onto the catalytic converter, creating an excessive amount of smoke. A preliminary evaluation has been opened to determine the frequency, scope and potential safety consequences of the alleged defect. Investigation was initiated on August 12 2009. For detailed information & supporting documents, see the official NHTSA page concerning investigation #PE09037 »

NHTSA Defect Investigation #PE07027

ENGINE STALLING & ELECTRIC POWER LOSS: Power Train:Manual Transmission**

RECALL »

Recall #07V291000

** This defect investigation is filed under 4 related vehicle components.
2007 JEEP WRANGLER -- On July 3, 2007, DaimlerChrysler corporation (DCC) submitted a defect information report to NHTSA describing a defect that could result in engine stall while driving in approximately 80,894 model year (MY) 2007 Jeep Wrangler and Dodge nitro vehicles manufactured between January 30, 2006 and January 22, 2007 (NHTSA recall 07V-291, DCC recall G25). According to DCC, the totally integrated power module (tipm) in these vehicles was programmed with software that may allow the engine to stall under certain conditions. DCC will reprogram the tipm in the recalled vehicles with revised software. ODI opened PE07-027 on May 29, 2007, based on 53 complaints alleging engine stall and/or loss of electrical power in MY 2007 Jeep Wrangler vehicles. ODI was also monitoring similar complaints in MY 2007 Dodge nitro vehicles. DCC's analysis of complaints to DCC and NHTSA found that many described events with a momentary loss of electrical power inside the vehicle and a corresponding loss of engine power. Many of the reports also indicated that the instrument cluster telltale lamps momentarily illuminated during the event. DCC's engineering analysis determined that the tipm could initiate an internal reset cycle lasting approximately 75 ms in response to error messages on the communication bus. The "key on" signal from the tipm to the powertrain control module (pcm) is lost during a tipm reset. If the pcm loses the "key on" signal for longer than 40 ms, it interprets it as the vehicle ignition being turned off and begins a power down routine. After the tipm reset, the "key on" signal is restored and the pcm powers back up. If the rotating components of the engine contain sufficient inertia, the vehicle may restart with no input from the operator as reported in some of the complaints. If the engine does not restart in this manner, it can be restarted by the operator. A revision to the tipm software on January 22, 2007 changed the tipm reset time to 17 ms, removing the potential for pcm power down and engine stall. ODI has received 178 complaints potentially related to the alleged defect in MY 2007 Jeep Wrangler vehicles and 52 complaints involving MY 2007 Dodge nitro vehicles. Two of the nitro complaints allege that a crash resulted from an engine stall incident, one of which caused minor injuries to a passenger. As of June 1, 2007, DCC identified 151 Wrangler complaints and 128 nitro complaints. This investigation has been closed with DCC's recall. Investigation was initiated on May 29 2007. Closed on August 02 2007. For detailed information & supporting documents, see the official NHTSA page concerning investigation #PE07027 »