Hi. My Mazda 626 auto seems to change gears but takes about 5 seconds to shift from neutral to drive. And does this throughout a the gears. If I try to accelerate straight away, the car will just Rev right up. And if I put my foot down hard on the accelerator, it will come out of gear into neutral or slip into the wrong gears. Just wondering if anyone knows anything about this and if its a really major problem.