Problems with 2003 GMC Yukon POWER TRAIN

Tl* the contact owns a 2003 gmc yukon. while driving approximately 50 mph, the vehicle experienced independent deceleration and the reduced engine power warning indicator illuminated. the vehicle was previously taken to an independent mechanic who diagnosed that the fuel pump, spark plugs, transmission, and alternator needed to be replaced. the vehicle was repaired, but the failure recurred. the manufacturer was notified and transferred the contact to nhtsa. the failure mileage was approximately 100,000.

I was driving down interstate 55 coming from sikeston mo headed to st louis with my family. as i was driving i heard a loud bang and the truck had begun to vibrate after pulling of i noticed that there was fluid leaking out. i had to have the truck towed back the mechanic assumed that the transfer case was gone out but upon removing the transfer case it was the transmission adapter had shatter i had many dealers look at the piece and they said they have never seen nothing like it. the metal gave away for no apparent reason nothing else was damaged except that transmission adapter. it was frightening for my family and myself i would like some answers on why this happened thank you so much *tr

2003 gmc yukon awd w/ stabilitrak. 40,000 mi.: when accelerating from a stop, the "traction active" dash display will very often come on, the powertrain disengages and i have to let up on gas until transmission re-engages. this has been occurring since september, numerous times a day. i have almost been rear-ended, since the drivers behind me presuppose i will continue accelerating. a gm dealer, after exam & diagnostics, could find no problem, even after being advised about possible "wheel corrosion." in the meantime of course, it continues. an entry in edmunds "car space" has referred me to "document id#1819672 202 gmc truck gmc k sierra 4wd; subject: product safety - front wheel speed sensor corrosion #05068b - (04/21/2006). this seems to be a dangerous, serious problem which should merit a recall. *jb

Dt: the contact stated when making turns there was a screeching noise coming from the rear of the vehicle. in snowy conditions when the four wheel drive was engaged there was difficulty driving followed by another screeching noise when shifting from automatic to four wheel drive. the vehicle has been to the dealer for inspection. the dealer overhauled the four wheel drive, but noted all four tires were off balance and varied in size. this could possibly be the culprit of the screeching noise when turning. the tires have not been replaced. *ak

The vehicle had been placed in park with the engine running in which the consumer exited the vehicle. the consumer had gone to the back of the vehicle to the cargo door but the vehicle begun to move forward and crashed into the house. the transmission was in park the entire time. *ak *sc

We purchased a 2003 gmc yukon. before it had reached 3000 miles the neutral light came on on the 4x4 unit. from there it would shift itself into 4 low. we have had it into the dealer a total of 6 times now and they have replaced one of the components 3 times, two of the other components once. after the secon d replacement it started showing neutral again on the 4x4 unit. it seems as though the problems do not arise until after 1000 miles. the dealership service department told me that they have had a lot of problems with these units. we are trying to do a buy back but gm is dragging things out and giving us a hard time.*ak