My Corolla shuts off when I make a left turn while driving. However, if I'm at a stop (light, sign, etc) and make a left, it doesn't happen. Any idea as to what this may be? I have about 150,000 miles on this car. Other than the cutoff problem, it runs fine. I would like to sell the car but I want to advise whomever buys it of this problem and also of any possible expen$es.