My chevrolet spark cannot decide what gear it wants to be in, causing delays that are dangerous when pulling out in traffic or turning across lines of traffic. for instance, i slow down to get into the center turning lane of a 5-lane street and then when clear, i accelerate to make the turn. the car feels like it makes a short stall as it can't decide if it needs to get into a higher or lower gear. it clearly takes a long time and goes up and down which places me uncomfortably too close to oncoming traffic. other times when i pull out in traffic, the same scenario repeats. i wonder if it shifts into a too high a gear too soon then down shifts one gear and then upshifts as the car starts to accelerate. several times a day when i slow to adjust to traffic conditions and then accelerate after slowing, the car lag/stall happens as the transmission shifts up and down through the gears. the car just can't decide what is the best gear to be in. i feel that this is dangerous. it certainly makes one very uneasy when you pull out in traffic and then the car barely moves for a very critical second or two.
When i try to accelerate from a stop, the car can't decide if it wants to move or not and it will just sit and rev and has almost caused several accidents as i am pulling out into traffic