Transmission Sensor Problems of Jeep Grand Cherokee

The contact owns a 2006 Jeep Grand Cherokee. The contact stated that the gear shifter failed to engage in park. When the contact was able to shift into park, the vehicle would stall immediately. The vehicle was taken to an independent mechanic. The technician diagnosed that the transmission sensor needed to be replaced. The manufacturer was made aware of the failure and did not offer any assistance since the vehicle was not included in recall NHTSA campaign number: 13v175000 (electrical system , power train). The vehicle was not repaired. The failure mileage was 135,000 and the current mileage was 144,500.

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My wife was driving and just about to get onto the interstate and with no warning, she couldn't accelerate past 25-30mph. Luckily she was able to pull to the side of the road quickly without an issue and turned the car off, waited a minute and started the Jeep up again and was then able to accelerate. When talking to the dealer, they have never heard of this problem before. When Jeep was checked at a local dealer, they pulled error codes that pointed to the transmission speed sensor. Only about $700 to replace that with labor!! the sensors are all part of the circuit board and thus need to dismantle the transmission to replace the sensors. Then I get on this site and see all the complaints with the same issue. This weekend I'm going car searching to get rid of this thing.

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Owned the 07 Jeep for 5 months. Vehicle has been serviced for 2 different incidents. The 1st incindent(actually happened several times) is when the vehicle would not shift during acceleration and it would force me to the side of the road where I would have to turn the vehicle on and off until it would run correctly. Was told by dealership service that it was a transmission sensor,had the part replaced-not covered by warranty. Less then 3 weeks later, 2nd incident occured when I was driving 55mph down the interstate while acclerating to get over to an exit, the vehicle threw itself back into 2nd gear and I was forced to get over into the emergency lane so as not to be struck by oncoming traffic. The Jeep had almost come to a complete stop in traffic! check engine light came on and went off after that. Dealership states the gear ratio and valve cover forced the vehicle into 2nd gear. Very dangerous!.

Upon acceleration from stop vehicle will hesitate and lose power. This constitutes a hazard to vehicle and any approching vehicles during a turn. Inspection indicates that transmission electronic control module is at fault along with a possible transmission sensor failure. The check engine light will come on. Both of these conditions ( power and check engine ) are intermittant, indicating that the module is faulty. There have been many complaints about the transmission ecm on these vehicles. The other complaints have varying symptoms but all go back to the transmission ecm. These unit should be recalled and repaired or replaced at manufacturers cost. This problem exists in many different models and years of vehicles, but always go back to this ecm unit. After investigating this problem I don't feel that the consumer is at fault or causing this to occur. Chrysler modules are and have been faulty in the past. Annecdotal evidence says that other modules in Chrysler vehicles have had problems too. Please investigate the Chrysler transmission ecm's and have them recalled.

The contact owns a 2003 Jeep Grand Cherokee. The contact was driving approximately 70 mph when the vehicle lunged forward and stalled. The vehicle was towed to her residence. The following day the vehicle operated normally; however, the identical failures occurred on three separate occasions. The vehicle was taken to an authorized dealer. The technician stated that the failure was related to the front control module. The vehicle has not been repaired at this time. The failure mileage was 112,000. Updated 6/21/10 the consumer stated the vehicle would shut off with no warning and would not restart. It was determined the crank sensor became extremely hot which caused the vehicle to shut down. The fan relay also failed which caused the vehicle to overheat and the internal transmission sensors failed. Updated 07/01/10.

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2002 Grand Cherokee transmission slipped into second and third gear. ***** the problem was diagnosed as a transmission governor sensor. One year later, the coolant light illuminated even though the coolant was full, the oil pressure gauge went all the way too high and stayed there, the dealer stated it was a bad sending unit. The engine light illuminated, when the vehicle misfires, a popping sound comes through the radio whenever it is turned on. The transmission has started to slip again.

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Sudden loss of power on three occasions. While driving at highway speeds, vehicle instantly looses all power. Obvious problems navigating to shoulder on multilane highway in traffic. Could easily be stranded in lane. Difficulty steering. Requires towing. Has occurred three times in last two years, twice in last month. First time, replaced computer. Second time, replaced transmission sensor. Third time, undetermined.

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