WHILE DRIVING FROM GA TO LA ON CHRISTMAS EVE, MY YUKON XL WENT INTO REDUCED ENGINE POWER AND LOST TRACTION CONTROL AND ANTILOCK BRAKES. THE CAR ALMOST INSTANTLY DROPPED FROM 72MPH TO 45MPH AND THE CHECK ENGINE AND TRACTION CONTROL WARNING LIGHTS CAME ON. I WAS ADVISED BY ONSTAR TO PULL THE CAR OVER AND TURN IT OFF FOR A FEW MINUTES. WHEN I STARTED IT AGAIN, POWER WAS RESTORED, BUT THE CHECK ENGINE WARNING LIGHT REMAINED. I WAS ADVISED THAT THE CAR WOULD PROBABLY DO THE SAME THING AND THAT I SHOULD HAVE IT SERVICED IMMEDIATELY, ON THE NEXT BUSINESS DAY, WHICH WAS MONDAY DECEMBER 27TH. WHILE DRIVING TO A DESTINATION ABOUT 30 MILES AWAY ON SUNDAY, THE CAR WENT INTO REDUCED POWER AGAIN AND THE WARNING LIGHTS RETURNED. THIS TIME TURNING THE ENGINE OFF FOR A FEW MINUTES DID NOT HELP AND POWER REDUCTION REMAINED. I TOOK THE CAR IN FOR SERVICE FIRST THING MONDAY MORNING AND WAS TOLD THAT THE THROTTLE BODY ASSEMBLY WAS BAD AND HAD TO BE REPLACED, BUT THAT THE PART WAS BACKORDERED AT THE FACTORY, SO MY VEHICLE COULD NOT BE REPAIRED. I CALLED MY DEALER IN GA TO SEE IF THEY HAD THE PART, BUT THEY ALSO HAD TWO ON BACKORDER FOR TWO OTHER CUSTOMERS. AS A RESULT, MY VEHICLE, WHICH IS ONLY A YEAR OLD AND UNDER WARRANTY, CANNOT BE REPAIRED AND IS UNSAFE TO DRIVE ON THE HIGHWAYS. THE SUDDEN LOSS OF POWER COULD CAUSE AN ACCIDENT. AFTER CHECKING ONLINE COMPLAINTS ABOUT THIS ISSUE, I DISCOVERED THAT MANY PEOPLE DRIVING GM VEHICLES ARE EXPERIENCING THE SAME PROBLEM. *TR
2006
FUEL/PROPULSION SYSTEM
I NOTICED A GASOLINE ODOR COMING FROM MY FUEL TANK AREA, I IMMEDIATELY HAD A MECHANIC INSPECT THE ISSUE AS I WAS FEARING A POSSIBLE FIRE HAZARD. UPON INSPECTION HE FOUND THE FUEL LINES TO THE FUEL PUMP TO HAVE DISINTEGRATED AND SPEWING FUEL . THE FUMES AND FUEL WERE DANGEROUSLY CLOSE TO THE EXHAUST SYSTEM AND I FEAR THAT I JUST NARROWLY AVERTED DISASTER. FURTHER INSPECTION BY THE MECHANIC DETERMINED THAT THE BRAKE LINES WERE ALSO ABOUT TO RUST THROUGH AND THE EFFECT OF THAT WOULD BE CATASTROPHIC IN A HIGHWAY OR ANY HARD BRAKING SITUATION THAT COULD INITIATE ENOUGH PRESSURE TO CAUSE THE LINES TO BURST. I AM VERY UPSET THAT GMC HASN'T APPRISED OWNERS OF THIS HAZARDOUS AND LIFE THREATENING SITUATION WITH THESE VEHICLES. I HAVE REPLACED ALL AFFECTED COMPONENTS AND FEEL THAT THIS IS CAUSE FOR A RECALL AND REIMBURSEMENT FROM GMC BEFORE A CATASTROPHIC EVENT TAKES PLACE DUE TO BLATANT NEGLIGENCE OF THE MANUFACTURER. MY UNDERSTANDING IS MANY PEOPLE HAVE VOICED CONCERN OVER THIS AND GMC HAS TURNED A BLIND EYE. *TR
