Volvo XC90 loud noise on start and during transmission shift from 2 to 4 with loss of momentum on Volvo XC90

Some Volvo XC90 owners report experiencing loud noises on start and during transmission shifts from 2 to 4, accompanied by a loss of momentum. These issues may stem from dry bushings or noisy shocks, particularly after recent front suspension changes. Additionally, a slip chirp noise when the engine is cold could indicate potential transmission or drivetrain problems. Some owners have noted grinding or humming noises from the front passenger side when shifting into drive, which may suggest transmission issues related to the front axle or drivetrain. Erratic transmission behavior, such as hanging in gear and RPM fluctuations, has also been reported, signaling the need for attention to the transmission system. Furthermore, loud noises during acceleration might point to engine or exhaust system issues, while persistent squealing could be linked to components like the PCV check valve. A buzzing noise from the right side of the engine bay during gradual acceleration may indicate problems with engine components or belts. It is essential for owners experiencing these symptoms to have their vehicle inspected by a qualified mechanic to ensure safe and optimal performance.