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Problems with 2012 Jeep Wrangler POWER TRAIN

On average, the 2012 Jeep Wrangler starts to “feel” problems with the POWER TRAIN and its various aspects after 23 530 miles.

Components Affected by POWER TRAIN Issues

We have classified the 254 complaints from 2012 Jeep Wrangler about POWER TRAIN into the following categories.

AUTOMATIC TRANSMISSION 2 CLUTCH ASSEMBLY 1

Recently reported POWER TRAIN problems on 2012 Jeep Wrangler

This is the second time that the transmission has downshifted-went from drive to 2nd .or 3rd gear range. vehicle has automatic transmission. vehicle was started and began driving. slowed down at stop sign and began to pull out vehicle went from "d" range to 2nd on indicator. vehicle has select shift + and -. each time i thought i had touched selector. *tr

The transmission became difficult to engage 1st gear. shifting into all others was very notchy. finally, in traffic, it became impossible to engage 1st gear at all. the vehicle had to be started in 2nd gear. the vehicle had limped in to the dealer. upon inspection it was found that the 1st gear synchro had cracked and failed. this can create a hazardous situation in busy traffic. this transmission has been reported by various user forums as faulty and prone to failure, including popping out of gear and difficult shifting. popping out of gear in a busy intersection could be dangerous, especially if you are unable to engage another gear. the dealer is repairing the broken synchro. *kb

Since the jeep was new, it has made a noise similar to "spark knock" or pre-ignition coming from the area of the engine compartment. the noise did go away after a few minutes, however it now persists even after the engine has warmed up. the noise is more noticeable in cold weather. the jeep dealer has tried to locate the source to no avail. a jeep technician even came out to our home for an early morning test ride and he heard the noise. he checked for loose cables etc. but the noise continues. this is very frustrating as i have this feeling that the answer will be found about the time the jeep is "out of warranty". *tr

The automatic transmission - tiptronic shift - is much too sensitive, down shifting. the transmission is an automatic with a manual -tiptronic- capability. there is no adjustment linkage. my dealer has order and replaced the original unit, but there is no difference. the pull distance of the lever to down shift is less than 1/16th inch. conversely, the push distance of the lever to up shift is approximately 3/4 inch. *tr

Auto shifter just barely gets bumped and vehicle downshifts. *tr

This vehicle has auto stick shifting with an automatic transmission. for upshifts movement all the way to the right, hitting the end of travel is required the make a shift up in gear selection. on down shifts, just touching the shift handle and barely applying pressure activates a downshift. no movement of the shift handle is required. this way to sensitive. *tt

I have a safety recall n28/nhtsa 13 v-234 transmission oil cooler tube on my vehicle and i have spent 6 months trying to get pat mcgrath dodge to replace this part with no luck of them calling me back or being able to get the vehicle into be fixed. it stated in the recall this may increase the risk of a crash and you are concerned about my safety. i not only worry about my safely but the safely of my children. i believe pat mcgrath has no concern for my safely. i have also called the hotline safety number and left a message with no return call from you. *tr

Automatic transmission with 'electronic range select' allows a downshift with a move of the shift lever to the left when in 'd' drive. a move to the right up-shifts. accidental downshifts occur frequently because of 'hair-trigger' nature of shift lever controls. the slightest, barely perceptible movement left causes a downshift, often unintended and unexpected. up-shifting requires a definite movement to the right. discussion of this issue with 2012 automatic wranglers drivers on jeep internet forums suggests a number of people experience and have a problem with this, while a number of drivers state their shifter requires a definite move left to downshift. i experience frequent, accidental downshifts on every trip due to this defect. current mileage on this vehicle is 1100 miles. sudden deceleration due to accidental downshifts can cause loss of traction on unpaved, gravel, icy or snowy roads, confusion, disorienting, and over-revving the engine. *kb

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