The accelerator pedal sometimes stays down after pressing it down to accelerate. It seems to be stuck to the floor sometimes and releases back to the normal position very slowly.
The accelerator pedal seems to be loose when pressing it, it feels like it moves from side to side more than it did.
When pressing the accelerator down the car does not accelerate as it's supposed to, there is sometimes a lag or delay between pressing the pedal and the car accelerating. The acceleration is sometimes slower than it should be and the car can feel as if it's hitting a limit that stops it going faster.
When putting your foot on the accelerator the car does not respond with the same urgency of acceleration. It feels like there is a lag between putting your foot down and the car accelerating, when it does accelerate it feels like a much slower change in speed.
When you put your foot on the accelerator, or take your foot off the pedal, the car doesn't change gear as you'd expect. It can seem as though the car is struggling to select the next gear.