2001 GMC SIERRA Vehicle Speed Control Problems

SINCE WE'VE HAD THIS TRUCK, THE ACELERATOR STICKS AND YOU HAVE TO PRESS IT HARD TO GET THE VEHICLE TO MOVE, THEN IT RACES FOR A SECOND AND JUMPS FORWARD OR REVERSE. THIS HAPPENS WHEN IT IS AT A COMPLETE STOP, WHEN YOU'RE STARTING OFF. IT IS DANGEROUS IN TRAFFIC SITUATIONS, SUCH AS FREQUENT STOP & GO TRAFFIC, AND WHEN YOU'RE TRYING TO MANEUVER IN TIGHT SPACES, SUCH AS PARKING. I'M SURE THAT IT ALSO CAUSES EXCESS FUEL CONSUMPTION. *TR

MANY PROBLEMS: 4 WHEEL DRIVE SENSOR, FRONT END SUSPENSION, PARKING BRAKE, SERVICE BRAKES, ANTI-LOCK BRAKES, SPEED SENSORS, RADIO, CENTER CONSOLE, ENGINE NOISE RAPPING WHEN STARTING, TAILGATE CABLES, ANTI-THEFT SENSOR, AND NOW THE BATTERY VOLTAGE GAUGE NEEDLE EXCESS DROPPING WHEN STOPPING, ENGINE IDLING TO LOW WHEN STOPPING. DEALER SAYS PROBLEM IS NORMAL. LET'S TEST DRIVE A NEW TRUCK AND SHOW ME IT IS NORMAL. THIS TRUCK IS A LEMON IN MY EYES!*JB

TRUCK EXHIBITS FAILURE OF BRAKING AT SLOW SPEEDS; PEDAL HARD AND NO BRAKE; HIT BUILDING AT SLOW SPEED MINIMAL DAMGE; TRUCK HAD 38,000 MILES. TOOK TO DEALER;THEY SAID KNEW WHAT WAS WRONG; CHANGED OUT LEFT FRONT HUB AND SPEED SENSOR $405.00. *AK

THE TRANSMISSION VIOLENTLY SHIFTS INTO GEAR UPON ACCELERATION FROM A STOP OR SLOW SPEED. THIS PROBLEM HAS OCCURRED AS MANY AS TEN TIMES SINCE THE ORIGINAL DATE OF PURCHASE. ON MAY 4TH IT OCCURED SO VIOLENTLY THAT THE PASSENGER IN THE REAR HIT HIS HEAD ON THE REAR WINDOW. IN THIS INCIDENT THE SHIFT WAS SO HARD THE REAR WHEELS LEFT THE GROUND(ALL 4) AND THEN THE TRUCK LURCHED FORWARD. THIS IS A SERIOUS DEFECT THAT COULD CAUSED HARM TO THOSE INSIDE THE TRUCK AND COULD HARM OTHER DRIVERS OR PEDESTRIANS. THE TRUCK SEEMS TO GO TO A NEUTRAL OPERATION EVEN THOUGH YOU ARE IN DRIVE THEN WHEN THE RPM"S ICREASE TO ABOVE 2,000 IT SUDDENLY SHIFTS. I HAVE TAKEN THE TRUCK TO THE DEALER 5 TIMES AND RECENTLY COMPLETED ARBITRATION TO TAKE THE TRUCK BACK. THE GMC REPRESENITIVE CLAIMED THAT THIS WAS NORMAL FOR A "HEAVY DUTY" TRANSMISSION SUCH...

THE TRANSMISSION HAS A PROBLEM THAT CAUSES THE TRUCK TO LURCH FORWARD JUST AFTER COMING TO A COMPLETE STOP. THE LURCH CAN BE QUITE STRONG CAUSING THE VEHICLE TO JUMP FORWARD IN EXCESS OF A FOOT. THE LURCH OCCURS AT UNPREDICTABLE TIMES AND WITHOUT WARNING. THE BEST DESCRIPTION I CAN OFFER IS THAT IT FEALS AS IF THE VEHICLE HAS BEEN HIT IN THE REAR BY ANOTHER VEHICLE. IT HAS OCCURED AT LEAST 6 TIMES ON VARIOUS OCCASIONS.*AK

WHEN COASTING AT APPROXIMATELY 40 MPH, MPH DECREASED TO ABOUT 25 MPH, AND THEN SUDDENLY ENGAGED INTO A FAST JUMP AS IF THE GAS PEDAL WAS TOUCHED, BUT IT WASN'T. THIS HAS OCCURRED ON TWO DIFFERENT OCCASIONS. PLEASE FILL ADDITIONAL INFORMATION. *AK

TRANSMISSION SURGES AT ALL SPEEDS. INTERMITTENT. DEAL STATES COULD NOT REPRODUCE PROBLEM. TRANSMISSION HAS SLIPPED INTO GEAR WHILE TAKING OFF FROM A STOPLIGHT. RPM'S WENT UP TO 2000 BEFORE ENGAGING GEAR.*AK