general problems of the 2008 Jeep Cherokee

Has been happening off and on since purchasing car used about 2 years ago. Driving dow the road, usually bumpy road, car turns off- dead. Have had it fixed twice before. Found to be key and ignitition switch (April 2013) now doing it again. Dealership reported to me similiar problem with a Dodge carvavan. Report they cannot figure out what is wrong with it since it is intermittent problem. Will do this at various speeds. Very random.

The first incident was the key getting stuck in the ignition and the dealer replaced an ignition component. After that was replaced on three occasions the engine turned off for now apparent reason. Jeep could not determine why and at that point I purchased a new car. I am reporting this now after hearing about the recall for other vehicles which turned off for no reason and had caused injury or death. Fortunately I was never in heavy traffic and was able to restart the vehicle. I was advised by Jeep to remove any extra keys from the ring but that did not resolve the engine turning off. Perhaps there are other Jeep owners who have experienced this problem but it was not part of the potential recall.

I started the Jeep and traveled normally for about a third of a mile on local streets. The problem started when I turned onto a collector street from a local street applying full throttle. When I lifted my foot off the throttle pedal the Jeep kept accelerating. The electronic throttle control warning light went on. I stopped the car by applying the brake and putting the transmission in neutral. The engine continued to rev at about 4000 rpm with the Jeep stopped. I turned off the Jeep and checked the position of the carpet protector to make sure it was not interfering with the accelerator. It was not in a position where it could overlap the throttle. I also checked the accelerator pedal and found it operating normally in terms of position and action. I turned the engine back on and the Jeep reacted normally for the remainder of the trip. Dealer not able to replicated but reported error message that both brakes and accelerator were both depressed. Also reported that carpet was not involved.