2003 GMC ENVOY XL Power Trainautomatic Transmission Problems

TRANSMISSION LINE MOUNTED TOO CLOSE TO CATALYTIC CONVERTER RESULTING IN RUBBING ACTION THAT RESULTED IN A HOLE IN THE TRANSMISSION LINE SPRAYING FLUID ON HOT EXHAUST PARTS. HAD TO PAY TO HAVE HOSE REPLACED. DON'T KNOW IF THE EVENTUAL FAILURE OF THE TRANSMISSION AT 73K MILES WAS RELATED, BUT HAD TO PAY $2700 TO GET A NEW ONE INSTALLED. *TR

TL*THE CONTACT OWNS A 2003 GMC ENVOY XL. WHILE APPROXIMATELY DRIVING 55MPH THE VEHICLE MADE AN EXCESSIVE NOISE AS IF THE VEHICLE SHIFTED OUT OF GEAR. THE THE GEAR SHIFT INDICATOR BECAME INOPERATIVE DISABLING THE VEHICLE FROM MOVING. THE DEALER STATED THAT THE TRANSMISSION FAILED. THEY REPLACED THE PUMP ASSEMBLY, INPUT DRUM SHAFT, PEREFEET SHIFT, CONVERTER, AND THE UJC. IN ADDITION, SHE SMELLED A FUEL ODOR WHEN ADDING FUEL INTO THE FUEL TANK. THE MECHANIC STATED THERE WAS A LEAK IN THE FUEL TANK. THERE IS A DEFECT INVESTIGATION FOR THE FUEL SYSTEM, NHTSA ACTION# EA07009. THE FAILURE MILEAGE WAS 98,000 AND CURRENT MILEAGE WAS 108,000. THE VIN AND ENGINE SIZE WERE UNAVAILABLE.

MY 2003 ENVOY WITH 68,000 WAS REAR ENDED. SHORTLY AFTER THE ACCIDENT I BEGAN TO HEAR A CLUNCKING NOISE WHEN STOPPING. AFTER I TOOK THE VEHICLE IN TO BE REPAIRED I WAS INFORMED THAT IT NO LONGER WOULD GO IN REVERSE. THE PROBLEM APPEARS TO BE THE SUNSHELL GEAR WHICH SEEMS TO BE A COMMON FAILURE WITH THIS TRANSMISSION, BECAUSE EVEN THOUGH IT WAS FINE BEFORE THE ACCIDENT THE DEALER IS CLAIMING IT WAS NOT CAUSED BY THE ACCIDENT AND THUS I AM RESPONSIBLE FOR THE ESTIMATED $2,500 TO FIX! *TR

I HAVE A 2003 GMC ENVOY XL 6 CYLINDER. I PURCHASED THIS VEHICLE NEW. ALWAYS SERVICED AND ONLY HIGHWAY MILES. MY TRANSMISSION GETS STUCK INTO 2ND AND 3RD GEAR. IT COSTS ME $2300 TO REPAIR THIS ISSUE. NO SUPPORT FROM DEALER OR GMC. *JB

DT: WHILE DRIVING AT 35-40 MPH VEHICLE SUDDENLY LOST POWER AND THE STEERING WAS NOT OPERATING . THERE WAS NO RESPONSE TO THE VEHICLE AT ALL. THIS OCCURRED IN THE MIDDLE OF TRAFFIC OF A MAJOR HIGHWAY. VEHICLE HAD TO BE TOWED TO A DEALERSHIP. A DIAGNOSTIC TEST WAS DONE AND THE RESULT SHOWED THE NEED TO DO AN UPDATE OF SOFTWARE FOR THE TRANSMISSION CONTROL MODULE ( ECM) AND THE POWER TRAIN, IN GENERAL. THEY PERFORMED THE REPAIRS. *AK THE VEHICLE WAS SERVICED THE WEEK BEFORE THIS OCCURRED. *NM