2007 GMC YUKON DENALI XL Engine Problems

TL* THE CONTACT OWNS A 2007 GMC YUKON DENALI XL. WHILE DRIVING 70 MPH, THE VEHICLE LOST POWER AND THE ENGINE POWER REDUCED MESSAGE WAS DISPLAYED. IN ADDITION, THE STABILITY, ABS, AND TRACTION CONTROL INDICATORS ILLUMINATED. THE LOCAL DEALER WAS NOT CONTACTED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS CONTACTED AND DID NOT ASSIST. THE FAILURE MILEAGE WAS 146,416.

THE SERVICE STABILITRAK LIGHT COMES ON ALONG WITH THE CHECK ENGINE LIGHT CAUSING THE TRUCK TO SHUT OFF OR NOT MOVE. THIS HAS HAPPENED WHILE AM ON THE FREEWAY, CITY STREET AND STOPPED AT A STOP LIGHT. I HAVE TOOK MY TRUCK IN FOR THE SAME PROBLEM MORE THEN FOUR TIMES AND SAME ISSUE KEEPS HAPPENING.

WHEN EXITING HIGHWAY COMING UP TO A STOP SIGN OR STOP LIGHT OR JUST BRAKING, THE ENGINE SHUTS OFF WITH NO WARNING OR SPUTTERING, WHILE STILL ROLLING WITH NO WARNING. THIS USUALLY HAPPENS WHEN PULLING A TRAILER. NO POWER BRAKES OR POWER STEERING. THE ENGINE HAS SHUT OFF 5 TIMES IN THE LAST MONTH AND A HALF AND TAKEN TO THE DEALERSHIP WHERE I AM TOLD EVERY TIME "CAN'T DUPLICATE SO AS OF NOW NOTHING IS WRONG WITH THE VEHICLE. I HAVE HAD TO STEER CLEAR OF CAR IN FRONT OF ME SEVERAL TIMES AS TO NOT CRASH. SERIOUS SAFETY ISSUE. TOLD BY ED BOZARTH CHEVROLET DEALERSHIP IN COLORADO, THAT SINCE NO CODE WAS PRODUCED AND CAN'T DUPLICATE THE ISSUE, NOTHING THEY CAN DO. TOLD THE PROBLEM IS UNKNOWN. I HAVE SEEN MULTIPLE FORUMS WHERE SAME MAKE AND YEARS ARE HAVING SAME PROBLEM. HERE ARE JUST A FEW SITES WHERE...

TL* THE CONTACT OWNS A 2007 GMC YUKON DENALI XL. THE CONTACT STATED THAT THE ENGINE MOUNT ON THE DRIVER'S SIDE OF THE VEHICLE BECAME DETACHED. THE CHROME ON THE DOORS WAS ALSO PEELING, WHICH CAUSED THE CONTACT TO GET CUTS ON THE HANDS. THE VEHICLE WAS TAKEN TO A CERTIFIED MECHANIC WHO DIAGNOSED THAT THE ENGINE MOUNT NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED; HOWEVER, THE FAILURE RECURRED. THE PEELING CHROME ON THE DOOR HANDLES WAS NEVER REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURES. THE APPROXIMATE FAILURE MILEAGE WAS 230,000.

TRAVELING AT ABOUT 25 MPH IN A RESIDENTIAL NEIGHBORHOOD, THE ENGINE AND STABILITRAK LIGHTS CAME ON AND POWER ABRUPTLY CUT OUT. LUCKILY NO ONE WAS BEHIND ME AND I WAS SAFELY ABLE TO PULL TO THE SIDE OF THE ROAD. I CAN ONLY IMAGE WHAT MIGHT HAVE HAPPENED IF THIS HAD OCCURRED ON A BUSY FREEWAY OR A CROWDED INTERSECTION. *TR

WHILE DRIVING IN THE CITY, MY TRUCK WAS DRIVING FINE. THEN THE STABILITRAK CAME ON. WHEN IT CAME ON THE ENGINE SLOW DOWN, AND ALMOST CAME TO A COMPLETE STOP WHILE DRIVING ON A MAJOR ROAD WHERE THE SPEED LIMIT IS 55. I WAS ABLE TO PULL OVER AND TURN THE VEHICLE OFF. I WAS ABLE TO GET IT TO START AND CALL THE GMC DEALER, TOLD THEM WHAT THE PROBLEM WAS, AND THEY ASKED COULD I BRING THE VEHICLE IN TO SEE WHAT THE PROBLEM WAS. AFTER THEY SERVICE THE VEHICLE, THEY SAID THAT THE STABILITRAK NEEDED TO BE REPLACED. I HADN'T EVEN HAD THE VEHICLE FOR A FULL YEAR. BEFORE I LEFT THE DEALER I ASKED COULD I STILL DRIVE THE VEHICLE, THEY SAID THAT I COULD. SO I CONTINUE TO DRIVE THE VEHICLE. ONE DAY WHILE DRIVE THE VEHICLE, IT MOVED FORWARD WHILE MY FOOT WAS ON...

EXHAUST MANIFOLD MOUNTING BOLTS FAIL. MANIFOLD SEPARATES FROM CYLINDER HEAD CAUSING EXHAUST LEAK . *TR