Automatic Transmission Control Module Problems of Jeep Wrangler - part 2

The cel (check engine light) or mil has been turned three times (dtc code p2099). The dealer has not found the problem, the dealer review the vehicle and all is ok. The dealer changes the pcm (powertrain control module), but the problem continues, the cel (check engine light) light has become a turn.

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Vehicle is currently (Dec 2012) at dealer having heads/valves replaced (10th day after waiting 10 days for parts), original report 9 Nov: idling engine continues to be very rough, much rougher than when reported to dealer on November 9 2012, dealer did pcm reflash/update as stalling maneuver, after which problem worsened and mil came on vehicle is vibrating abnormally when stopped and idling, all passengers feel the car shaking, almost stalls at times idling engine changes speeds and sound intermittently and is running very loud engine always had slight ticking on left side since new but was never loud or rough loss of power felt at acceleration at top of gears (manual) white exhaust emissions after cold start, this never happened before engine light mil is on and off repeatedly - reads p0306 cylinder 6 misfire gas mileage severely affected (approx 25% worse), car now has 18k miles; dealer said it was ok to drive it - however driving it may cause other damage this is 3rd visit to dealer - when problem first reported dealer service dept said I might have put water in the gas. I have had to push the dealer to fix this and the general attitude has been adversarial and not helpful.

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The contact owns a 1998 Jeep Wrangler. While driving approximately 15 mph, the contact heard a loud rattling noise underneath the vehicle. The vehicle was taken to an authorized dealer where the catalytic converter was replaced. Recently, the contact discovered a voluntary recall issued by the manufacturer pertaining to the power train control module. The contact was displeased to know the VIN was not included in the recall and ineligible for reimbursement for the prior repair. The manufacturer was notified of the problem. The approximate failure mileage was 95,000. The consumer stated the exhaust manifold cracked on two separate occasions and had to be replaced.

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The contact owns a 2010 Jeep Wrangler sport. While driving approximately 40 mph, the vehicle started to shake excessively and lose power abnormally with the illumination of every warning light on the instrument panel. The vehicle was taken to the dealer where they performed a diagnostic test concluding that the pcm had failed. The vehicle was repaired. On a later date while attempting to accelerate 15 mph, the contact smelled an unusual burning or smoke odor as the vehicle stalled without warning. The dealer informed the contact that the pcm failed a second time and blown a fuse. The manufacturer offered to repair the vehicle however, because the contact had only owned the vehicle for two days he wanted a replacement but the manufacturer refused. The vehicle was not repaired. The current mileage was 184 and the failure mileage was 172.

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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.

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Electronic throttle control fails causing the engine to stall during normal driving conditions.

The contact owns a 2007 Jeep Wrangler 4x4. While driving at 65 mph the steering locked, instrument panel dimmed, and the vehicle shut off. The vehicle restarted automatically approximately four seconds later. The vehicle was taken to a shop and no failures were found. This morning, while driving 65 mph the failure's recurred. The contact stated that the radio shut off without warning and the vehicle automatically restarted four to five seconds later. The contact never turned the key in the ignition, changed lanes, or changed gears when the vehicle restarted. The dealer could not duplicate the failure and stated that the vehicle had an investigation open with NHTSA, action # pe07009 regarding electrical system power train:automatic transmission:control module (tcm, pcm)). The current mileage is 4,971, and failure mileage was 2,000. Updated 06/26/07.

Engine check light came on/vehicle started smoking. Consumer could smell gas. Turned vehicle off and had it towed. Dealer said said it was the pcm. Also, manual transmission makes noise and it is difficult to change gears.

See all problems of the 2000 Jeep Wrangler 🔎.