The contact owns a 2001 GMC Sierra 2500. The contact stated while driving 50 mph the vehicle stalled without any warnings. The contact mentioned that he was able to turn the vehicle back on but the failure persisted. The vehicle was taken to a local mechanic who diagnosed that the fuel pump was defective and needed to be replaced. The mechanic also advised that the fuel lines needed to be cleaned. The remedy failed to repair the problem. The manufacturer was made aware of the failure but did not offer any assistance since the vehicle was not included in NHTSA recall campaign id number: 07V521000 (engine and engine cooling). The vehicle was not repaired. The failure mileage was 79,500 and the current mileage was 80,000.

- Kinnelon, NJ, USA

The contact owns a 2001 GMC Sierra 2500. While driving approximately 30 mph, the vehicle shut off on three separate occasions without warning and had to be restarted. The VIN was not included in NHTSA campaign id number 07V521000 (engine and engine cooling). The current mileage was 60,520 and failure mileage was 60,515. Updated 06/09/08 the consumer stated the problem was diagnosed and the crankshaft sensor was replaced. Updated 06/09/08

- Paradise, CA, USA

The contact owns a 2001 GMC Sierra 2500. While driving at any speed, the vehicle shuts off and restarts after a few minutes. The diagnostic indicated that the crankshaft sensor needed to be replaced. The current mileage was 64,200 and failure mileage was 63,000. Updated 01-10-08.

- Joplin, MO, USA