Hot answers tagged motors
If when you shift gear and release the clutch you feel the engine reving up without the car actually accelerating, probably the clutch is worn or very old/used. (this goes for manual gearbox)
If I am understanding what you are trying to say, it sounds like the transmission is slipping and allowing the engine to rev higher than what you'd expect for the speed you are going. Not knowing if it is an automatic or standard gearbox, I'm going to assume it is auto, because I don't think Volvo made too many standard shift 4-doors. Something you need to ...
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