While consulting with hyundai service center, they told that there is no compression in one of the cylinder. My car has been crossed 46,000 kms. While driving with A/C. There is no pickup in 2nd gear in speed breakers. If I do so then engine got OFF. Bt there is no problem in 1st gear and also my car is going top speed upto 140kms with A/C ON. What can I do nw?