One problem related to engine stall has been reported for the 2005 GMC Sierra. The most recently reported issues are listed below.
Dt: the engine has died, once while driving and once at a stop sign. The transmission was jumping and was put in neutral to steer to another lane. The other time there was no sign of a problem before engine stalled out. There has been many times this has been in the shop due to transmission problems. Have been with gm a few times and they came to the conclusion that they would send a representative to check out the truck. They never sent one, as of today, gm said that they didn't do that. Consumer wanted a buy back. Consumer talked to bbb today, they said that the consumer might be getting a call from gm. Consumer had the vehicle in the shop 3 times, all due to transmission and engine related problems. Dealer has tried to fix problem 3 different times, but that is not working and has made condition worse than before.