If, while driving, it is difficult to keep your car in lane or the front wheels do not turn when you turn the steering wheel in a calm state, the problem consists in the malfunction of the steering. Other sign of the defective steering also include jolts and vibrations coming from the steering wheel while driving, the need to apply more force to turn and locked steering wheel when turning. The steering wheel diagnostics comprises listening, checking the steering rack, steering gear, hydraulic power steering (HPS) or electro-hydraulic power steering (EHPS) pump, steering column, steering rods and tips, bypass tubes and other steering elements.