Q: My car loses power while I am trying to accelerate. It will not reach the next gear.

Hello. With the amount of information, there are a limited number of suggestions. These include loss of ignition with higher spark loads (weak coils or ignition module), inadequate fuel supply -quantity and pressure (weak fuel pump, clogged fuel filter or injectors), possible water in the fuel, and possible throttle position sensor problems. Most, if not all of these will cause a Check Engine light condition. The problem codes will be extremely helpful in determining the faults. I would recommend having a car is not developing enough power inspection completed by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, diagnose this problem, give you an accurate assessment of damage and estimate for repairs.