The meaning of the B2584 Code is necessary to know for solving the car engine and if the real meaning of the code is not found, it is impossible to fix the car engine. You should read the manual of the car engine information. The engine B2584 OBD 2 code on cars with electronically measured automatic broadcasts, the 3-4 shift solenoid is accountable for activating the hydraulic tours to start clutches or bands that alteration gears inside the automatic transmission. Do not need to change any component for solving the car engine. It is found that fixing the body of the car engine is very easier.