2005 GMC SIERRA Power Train Problems

ISSUES WITH EMISSIONS SWITCH. CHECK ENGINE LIGHT WILL NOT GO OFF. ALSO 3 AND 4TH GEAR ARE COMPLETELY GONE OUT. I DO NOT TOW OR HAVE HAD ANYTHING EVEN REMOTELY HEAVY IN THIS TRUCK. IT'S A 2005 GMC SIERRA WITH ONLY 78,480 MILES ON IT. I AM NOT THE ONLY ONE HAVING ISSUES WITH THIS 4 SPEED TRANSMISSION. IT IS NOT HEAVY DUTY ENOUGH FOR THIS SIZE TRUCK. GM NEEDS TO RECALL ALL OF THESE TRANSMISSIONS. WHEN IT FIRST STARTED SLIPPING I LOST ALL POWER GOING DOWN THE ROAD AT ABOUT 55MPH. THE VEHICLE THAT WAS BEHIND ME SLAMMED ON HIS BRAKES TO AVOID HITTING ME. THIS PROBLEM WITH THE TRANSMISSION IS GOING TO KILL SOMEONE.

WITHIN 4 MONTHS OF PURCHASE, WAS DRIVING AT APPROX. 25 MPH WHEN TRANSFER CASE SHIFTED INTO 4 HIGH ON IT'S OWN. SHUT OFF VEHICLE, RESTART AND ABLE TO PUT BACK INTO 2 WHEEL DRIVE. HAPPENED ON AND OFF FOR A LITTLE MORE THAN A MONTH WHEN IT WENT TO 4 LO WHILE DRIVING AT 30 MPH THROUGH TOWN. UNABLE TO RESET. LIMPED IT THE 2 MILES TO DEALERSHIP FOR DIAGNOSIS. COST ME $1200 TO HAVE THE TRANSFER CASE REBUILT. SMOKED THE CLUTCH PACK, BURNED OUT 2 BUSHINGS AND BENT SHIFT SHAFT. HAD SECOND ISSUE OF SHIFTING ON IT'S OWN, MAY 15TH, 2014. THIS TIME IT COST ME $500 FOR THE SHIFT MOTOR TO BE REPLACED. SECOND PROBLEM, SPEEDOMETER READING INCORRECTLY OR NOT AT ALL. BEEN GOING ON FOR ABOUT 3 YEARS SPORADICALLY (APPARENTLY THE LITTLE DRIVE "MOTOR" ON THE BACK OF THE INSTRUMENT CLUSTER, $300 REPLACEMENT OR, FOUND A COMPANY...

2005 GMC SIERRA SLT VIN [XXX] I DROVE THE TRUCK 237 MILES HOME AND NOTICED IT WAS NOT OPERATING PROPERLY. I CALLED GMC TO RESOLVE THE PROBLEMS. THE TRUCK HAS BINDING IN THE FRONT AXLES, BRAKES, OR DIFFERENTIAL. THIS CAUSES THE TRUCK TO UNDERSTEER HEAVILY AS THE TRUCK WORKS TO TURN THE FRONT WHEELS OVER THE ROAD SURFACE. THIS ALSO MAKES THE TRUCK DIFFICULT TO STEER, U TURNS ARE ESPECIALLY A PROBLEM, THE TRUCK HAS SLUGGISH ACCELERATION AND STAYS LONGER IN THE LOWER GEARS. THE REAR TIRES ARE PRONE TO LOSE TRACTION DUE TO THE INCREASED ROLLING RESISTANCE FROM THE FRONT WHEELS, BRAKING PERFORMANCE IS COMPROMISED, THE TRUCK WILL SWAY BACK AND FORTH AT HIGHWAY SPEEDS AS THE ROLLING RESISTANCE OF THE FRONT WHEELS VARIES FROM SIDE TO SIDE. THE TRUCK TENDS TO PULL TO THE LEFT, AND THE SUSPENSION IS ALWAYS PRELOADED FROM THE ADDITIONAL STRESS. THE ENGINE LABORS...

I OWN A 2003 2500 HD 4X4, A WONDERFUL VEHICLE IT WOULD BE EVEN MORE WONDERFUL IF I COULD FIND A DEALER THAT WOULD STAND BEHIND HIS PRODUCT. MY NEXT CAR PROBABLY WILL NOT BE GMC OR CHEVY. I HAVE OWNED THE CAR SINCE JUNE OF 2003. DUE TO THE NATURE OF MY BUSINESS I ALREADY HAVE 98,000 MILES. DURING THAT TIME I HAVE COMPLAINED ABOUT FUEL MILEAGE. THE REPORTS LIE. NOBODY WILL DO ANYTHING ABOUT THE FUEL MILEAGE. BECAUSE IT CAN'T GET ANY BETTER BECAUSE THEY LIED. I HAVE LOST A VACCUME PUMP, AND A LEFT FRONT WHEEL HUB WHICH HAD TO BE COMPLETELY REPLACED. WHAT PROMPTED MY COMPLAINT IS THAT I HAVE STARTED DEVELOPING A VIBRATION AT 77-83 MPH. DEALER REP SAYS YOU SHOULDN'T BE DOING 80 MPH. THEREFORE SINCE OUR MECHANICS CAN'T SPEED IN YOUR VEHICLE ( COMPLETELY UNDERSTANDABLE) YOU DON'T HAVE A VIBRATION. DESPITE THE FACT...