My 2002 Trailblazer stall (sometimes) when making turns at low speeds such as a parking lot or driveway. It also has a difficult time starting up everytime- i have to crank it for a couple more seconds then I did in the past and rev it right away to keep it running at first. After driving a fair distance 20-30 miles then stopping and leaving it idel for a couple minutes is usually when it starts running rough and stalls on turns. I have to take turns at a faster speed to keep it from stalling. its about 50% of the time it stalls on slow turns. Any help is appreciated.