This is not acceptable, why? it is the third timing chain on the car. I took it to my local GM dealer who stated it that it was a timing chain issue. February 2016, I was driving my 2007 Saturn Aura xr (V6 3.6 L engine) home and the check engine light came on. My family has owned GM vehicles for 35 + years. we somehow forgot about the tc problem and three days into driving with a new engine the car disabled again stating service traction control. Before the traction control was addressed I had to replace the engine as the timing chain and cam actuators failed at 210 K. It started this before any other problems with the vehicle, specifically as I lost traction on some icy snow and spun the tires a few times when the car had 50,000 miles on it. It has disabled on me about five times now without warning and does so at any speed. I was told it was likely a sensor on the brake pedal and they had to order the part. I took it to the dealership but the traction control and engine lights were gone by the time I got there and it was back up to power. The car restarted after sitting a few minutes with reduced engine power for the first twenty miles - I could top out at about 45 and hear an electrical engagement sound. While driving 55 on a busy two lane highway the vehicle dinged and read service traction control on console, immediately the it flashed engine power reduced and engine disabled and my car lost all power and I was unable to get it all the way off the road due to the uphill incline - the car behind me shot out into oncoming traffic and almost caused a major multiple car pile up. I asked them how could the engine just seize up with no warning. The dealer called me after 3 hours and told me they were not going to charge me the service fee and my engine was seized. While they were working on it I called GM owner assistance because at this point I had some feelings of mistrust. I told them to just figure out why the car will not start. None of the noted repairs had anything to do withe the car dying. The next day the when I contacted the dealer they asked me if I wanted to have the repairs needed from the previous day done. Since I was unable to get it started I called a tow truck and had it towed back to the dealer. I tried to restart the car and all I got was a mild clicking sound I noticed a burning smell from under the hood, so I thought the ECM burnt up. I un did the negative cable and that didn't work. I tried to clear them with my code reader but they wouldn't clear. I tried to restart it and the was a fairly loud noise from under the hood. I pulled into a parking lot and the engine light and reduced power and traction off warning came on. The next night I was driving, car was running smooth, no problems. So I drove it to my local dealer, they reset the codes and updated the ECM. 21, 2017 the engine light came on again and I had a hard time getting it started again. Sometimes I would drive for a couple weeks to a month or two with no problems. I they came back right away I would disconnect the negative cable and that would seem to work. I have a code reader and was always able to clear them. I was having trouble with my engine light coming on and reduced engine power and traction control off and throwing codes.
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