07 trailblazer started stalling about a month ago I pulled out of driveway and stalled Started it up and started fine stalled out again so I parked it the next day I went out and start several times fine drove it back-and-forth then the stalling. I have a code reader a very nice one and is giving me zero code also I have clean the throttlebody I had to replace the map sensor the cam sensor and then ignition switch not the Tumbler the one that's under dash. The vehicle has 114,000 miles the motor was replaced at 107,000 when it failed by Chevy under the warranty I had. Also vehicle has been regularly maintenance as far as Tune ups. The vehicle has 114,000 miles the motor was replaced at 107,000 when it failed by Chevy under the warranty. The car will start up fine sounds fine has never run rough. I am really stumped if anybody has any idea please let me know thank you I drove the car once since all the things were replaced drove for 20min to store came home and then stalled out again after that so I have left it parked.