hesitation

When I floor it and the car is accelerating, I've noticed that the car has a mechanical whining noise to it. Don't have a turbo or anything either. Also when the car hits about 4-5k RPM I notice a little hesitation as if its catching up or something; It accelerates smooth until 5k and then it...

I have a 95 Corolla 1.8 7afe 5 speed manual that is jerking bad under acceleration worst at full throttle . It started after my distributor went out . I replaced it with a new one and it started just hesitating right at 3,000-3,100 Rpms then I parked it and now it's worse jerking around 2,500 to...

Just bought a used 2015 Corolla LE. Been noticing hesitation during acceleration. Seems to happen mainly when I am decelerating, then hitting the gas again in stop & go traffic. It seems to accelerate fine from a dead stop, though. Brought it to a dealership (still under warranty) & the...