NHTSA Complaint #10441337 — 2007 GMC YUKON

VEHICLE GETS EXTREMELY LOW GAS, 13 MPG ON AVERAGE. BURNS OIL . NEED TO ADD 2-3 QUARTS OF OIL BETWEEN OIL CHANGES. ENGINE COOLING FAN STAYS ON FOR EXTENDED PERIODS WHILE DRIVING. ALL OF WHICH THE DEALERSHIP SAYS IS NORMAL FOR THE TRUCK. THEY REMOVED THE DRIVESHAFT BECAUSE OF CLUNKING AT 25K MI. REACTION CARRIER REPLACED AND TRANSMISSION RECONDITIONED AT 36,663 MI AFTER CAR STOPPED IN THE MIDDLE OF THE STREET. CAR HAD TO BE TOWED IN. AT 62K MILES ENGINE LIGHT ON AND IDLES ROUGH. REPLACED THROTTLE BODY. AT 67K WON'T ENGAGE IN REVERSE AND MAKES CLUNKING SOUND FROM REVERSE TO DRIVE. REPLACED REVERSE HOUSING, REACTION SHELL, ETC. AT 75K HAD A REACTION CARRIER FAILURE, LOST POWER BRAKES AND LOST POWER TO THE CAR. ALMOST WAS REAR ENDED. HAD TO STOP IN MIDDLE OF PARKING LOT DURING CHRISTMAS RUSH. WAITED 5 MIN AND RESTARTED. ENGINE LIGHT STAYED ON, BUT WAS ABLE TO GET TO DEALERSHIP. WAS TOLD THAT THROTTLE BODY NEEDS TO BE CLEANED EVERY 15K MILES UNDER SERVICE MAINTENANCE. THIS WAS THE FIRST TIME I HEARD THIS! NOT REALLY SURE WHY IT HAD TO BE CLEANED, THOUGH, JUST HAD THE THROTTLE BODY REPLACED 13K MILES AGO. IT SEEMS THAT THERE ARE MAJOR FLAWS IN THE DESIGN OF THE ENGINE. OBVIOUSLY, THE DEALERSHIP HAS BEEN PUTTING BAND AIDS ON MY PROBLEM BECAUSE THEY DON'T KNOW HOW TO FIX. I HAVE BEEN VERY LUCKY THAT MY FAMILY AND CHILDREN HAVE NOT BEEN IN A MAJOR ACCIDENT DUE TO THE MAJOR FLAWS IN THE ENGINE DESIGNS. EVERY TIME I GET MY CAR FIXED, THE TECH ASSURES ME THAT THEY HAVE FIXED THE PROBLEM. I AM REALLY AFRAID TO DRIVE THIS CAR WITH SO MANY CLOSE CALLS. THE CAR IS A HAZARD TO DRIVE! *TR