Investigations


NHTSA IDManufacturerDate openDate closeSubjectRecall campaign
POWER TRAIN - AUTOMATIC TRANSMISSION
PE07027CHRYSLER GROUP LLC05/29/200708/02/2007ENGINE STALLING & ELECTRIC POWER LOSS07V291000
 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.
POWER TRAIN - MANUAL TRANSMISSION
PE07027CHRYSLER GROUP LLC05/29/200708/02/2007ENGINE STALLING & ELECTRIC POWER LOSS07V291000
 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.

Consumer Complaints


Fail datemilesoccurencesPurchase date
POWER TRAIN
07/22/201120000
 My 2007 jeep was in the shop for various repairs, however this one took the cake! i arrived home from work (6milesaway) when i noticed smoke coming out from under the hood. i found it was overheating, no indicator light to warn me, temperature gauge was at normal but the smell of anti-freeze was present. towed it to the dealer and found the heater hose assembly, to be melted through from the bad design, of having it too close to the engine. also it appeared to have two slices in the hoses , where the clamps were too close to the bend in the hoses. it cost me over $100.00 to have it fixed.
04/30/201030000
 Vehicle loses power to accelerator at random, unpredictable times (could be at a stop sign, could be while traveling on a highway, and does not matter if car is hot or cold). warning light (lightning bolt) flashes on the dashboard, and accelerator is sluggish to respond or unresponsive altogether. i have nearly been in two accidents while pulling into traffic because cars starts to go, but then loses power and the accelerator takes about 3-4 seconds to recognize i am stepping on it. i have had it into chrysler dealership three times now, and they are unable to diagnose the issue. first time the accelerator pedal assembly was replaced. the second time, the pcm module (drivetrain computer/module) was replaced in its entirety. problem started occurring around 30,000 miles, and has continued since (now at 41,500). has nearly caused me to be in two bad accidents, which caused other cars to swerve/skid around me because i was stopped broadside in roadway. they would not acknowledge problem until they made me drive them around our city, and prove to them what happens. luckily it happened while he was in the car with me, but the service techs are unable to diagnose the problem and continue to work with chrysler engineers to no avail. other instances include being stopped at a red light on a hill, and not being able to go forward in time, and nearly drifting backwards into vehicles behind me. this requires use of heavy foot on gas and emergency brake. additionally, vehicle is a 6 speed manual, and sometimes 'pops' out of first gear while starting from a stop position. this issue has happened for the last 5,000 miles approximately but is becoming more common (nearly daily). i believe they will be able to diagnose this issue and correct it (common problem according to my internet research), however it does not appear they have a handle on the first issue. i have been told to leave my vehicle at the dealership until they can diagnose and fix the problem, it's not safe
POWER TRAIN - AUTOMATIC TRANSMISSION
01/06/201170413
 While driving vehicle and getting ready to park, gear shift locked. able to shift to park but instrument panel continues to show drive. unable to start vehicle- stuck on drive.
POWER TRAIN - AUTOMATIC TRANSMISSION - CONTROL MODULE (TCM, PCM)
03/19/20074003
 Electronic throttle control fails causing the engine to stall during normal driving conditions. *tr
POWER TRAIN - MANUAL TRANSMISSION
01/28/200750
 Tl- the contact owns a 2007 jeep wrangler. the contact stated the gear shift pops out of first and third gear. the vehicle is a manual transmission and the contact had to hold the gear shift in place to keep the vehicle from popping out of gear. the contact stated this failure only happens when the weather is cold. the dealer informed the contact that the vehicle will need a new transmission, but the contact did not know the reason at the time of the complaint. the failure mileage was 50 and the current mileage was 48000.rl
04/30/201030000
 Vehicle loses power to accelerator at random, unpredictable times (could be at a stop sign, could be while traveling on a highway, and does not matter if car is hot or cold). warning light (lightning bolt) flashes on the dashboard, and accelerator is sluggish to respond or unresponsive altogether. i have nearly been in two accidents while pulling into traffic because cars starts to go, but then loses power and the accelerator takes about 3-4 seconds to recognize i am stepping on it. i have had it into chrysler dealership three times now, and they are unable to diagnose the issue. first time the accelerator pedal assembly was replaced. the second time, the pcm module (drivetrain computer/module) was replaced in its entirety. problem started occurring around 30,000 miles, and has continued since (now at 41,500). has nearly caused me to be in two bad accidents, which caused other cars to swerve/skid around me because i was stopped broadside in roadway. they would not acknowledge problem until they made me drive them around our city, and prove to them what happens. luckily it happened while he was in the car with me, but the service techs are unable to diagnose the problem and continue to work with chrysler engineers to no avail. other instances include being stopped at a red light on a hill, and not being able to go forward in time, and nearly drifting backwards into vehicles behind me. this requires use of heavy foot on gas and emergency brake. additionally, vehicle is a 6 speed manual, and sometimes 'pops' out of first gear while starting from a stop position. this issue has happened for the last 5,000 miles approximately but is becoming more common (nearly daily). i believe they will be able to diagnose this issue and correct it (common problem according to my internet research), however it does not appear they have a handle on the first issue. i have been told to leave my vehicle at the dealership until they can diagnose and fix the problem, it's not safe