Vacuum Pump blew up forcing cam shaft sensor to blew out of engine and caused my brakes to fail. This happened at a stop sign. I proceed through the stop in front of a semi-tractor. Fortunately it was in front of the police station in(30mph) town zone and he was able to brake before killing me. My vehicle stopped before going through the front door of an auto shop, My Timing Cam is damaged and Shepherds is quoting $2600 to replace, plus an additional $800 already spent in replacing the vacuum pump. I-??ve driven the car an additional 6 months with the cam sensor detached but the vehicle stalls when I slow or stop. This has caused additional hazardous situations. Person(s) will die if this defect is not addressed, it-??s probably already happened. I have over 25 years in Automotive safety systems design and manufacture, this needs addressed immediately.

- North Manchester, In, IN, USA

The contact owns a 2017 Buick Regal. The contact stated that while driving at various speeds, the vehicle shuddered while shifting gears. Serpentini Chevrolet Buick of orville (1107 N main St, orrville, oh 44667) was made aware of the failure. The vehicle was repaired three times with an oil change while two unknown transmission parts were replaced. The mechanic was unable to duplicate the failure. The failure recurred. The vehicle was taken to a transmission specialist who duplicated the transmission failure. The independent mechanic contacted the dealer and informed them of the result. The vehicle was not repaired. The manufacturer was made aware of the failure. The manufacturer contacted the dealer and was informed that there was nothing wrong with the vehicle. The failure mileage was 19,500.

- Orrville, OH, USA