2001 Volvo S60 T5 w/manual transmission stalled abruptly with a "reduced power" message on the dashboard computer display while accelerating on a highway onramp. This was a very dangerous situation, as another vehicle was behind me and came close to colliding with my vehicle due to immediate deceleration w/no warning/brake lights until I was able to react to the unexpected situation. After pulling over, stopping the car for a few minutes and restarting, I was able to continue driving it, but it seemed to run rough and "stutter" a bit for the rest of the trip. Drove to local Volvo dealership first thing next morning and resulting diagnosis & repair was "throttle unit internal fault" and replacement of the electronic throttle module (ETM). Engine fault codes were: ECM 915D, 916D, 904C, 928A & 903F. Repairs totaled $1,012.03.

- Newburyport, MA, USA