2003 Chevrolet Express Complaints

MY SPEEDOMETER QUICKLY JUMPS FROM ONE INDICATED SPEED TO ANOTHER SPEED THAT IS CLEARLY INACCURATE, DOWN AS LOW AS -0- WHILE DRIVING, ACCOMPANIED BY THE TRANSMISSION ATTEMPTING TO DOWNSHIFT ON IT'S OWN, WHICH CAUSES A SEVERE ENGINE OVER-REV CONDITION OR GOING INTO A NEUTRAL MOMENTARILY WITH NO INPUT FROM ME AS THE DRIVER. THERE ARE NO SPECIFIC ACTIONS I CAN TAKE TO TRIGGER THE ERRATIC SYMPTOM, NOR ANY SPECIFIC ACTION I CAN TAKE TO CAUSE NORMAL OPERATION. WITH SNOW AND ICE ON THE ROADS AT THIS TIME OF THE YEAR THIS IS EXTREMELY DANGEROUS AS IT COULD CAUSE THE VAN TO LOCK UP THE REAR WHEELS ON SLIPPERY PAVEMENT CAUSING LACK OF CONTROL. THIS CONDITION CAN OCCUR REGARDLESS OF WHETHER OR NOT CRUISE CONTROL IS SELECTED, REGARDLESS OF THE GEAR I MANUALLY SELECT, AND REGARDLESS OF THE TRAILER MODE BEING SELECTED OR NOT. SIMULTANEOUSLY THE "CHECK ENGINE" LIGHT GOES ON, THE "ABS LIGHT" AND "BRAKES" LIGHTS ARE LIT ON THE DASHBOARD ALTHOUGH NO BRAKING ABNORMALITIES ARE NOTED. I REPOR...

I WAS TRAVELING ON THE HIGHWAY AT THE SPEED OF 50 MPH AND THE VAN SUDDENLY BEGAN TO VIOLENTLY SHAKE AND SHUDDER FROM THE FRONT WHEELS AND UP AND INCLUDING THE SHAKE OF THE STEERING WHEEL. I SLOWED THE VEHICLE DOWN BY BRAKING TO 35 MPH AND IT SLOWLY STOPPED SHAKING. THIS HAS BECOME A REGULAR ISSUE WITH THE VEHICLE AND I HAVE TAKEN IT FROM SHOP TO SHOP AND MECHANICS CANNOT FIGURE OUT THE PROBLEM. I FEAR FOR MY FAMILY'S SAFETY AS WELL AS MY OWN WHEN DRIVING ALONE IN THIS VEHICLE. IT HAS BEEN A YEAR SINCE THIS HAS BEGUN. MECHANIC HAS CHANGED THE SHOCKS FOR THE VAN AND IT HAS BEGAN TO VIOLENTLY SHAKE AND SHUDDER MORE FREQUENTLY. I NEED TO KNOW WHY THIS IS HAPPENING. I OWN A CHEVROLET EXPRESS 2500 (2003). *TR

TL* THE CONTACT OWNS A 2003 CHEVROLET EXPRESS. THE CONTACT STATED THAT THERE WAS A FUEL LEAK COMING FROM THE VEHICLE. THE CONTACT INDICATED THAT AFTER REFUELING, FUEL PUDDLE UNDER THE VEHICLE. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER WHO DIAGNOSED THAT THE FILLER NECK NEEDED TO BE REPLACED AND THE METAL FUEL FILLER PIPE WAS CORRODED. THE CONTACT WAS NOT INCLUDED IN NHTSA CAMPAIGN ID NUMBER: 12V388000 (FUEL SYSTEM, GASOLINE). THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 153,500.

DRIVING ON INTERSTATE AT 65 MPH, THE ABS WARNING LIGHT CAME ON, AND THE SPEEDOMETER STARTED JUMPING ERRATICALLY FROM ACTUAL SPEED TO LOWER SPEEDS 45, 25 + OTHERS AS LOW AS 8 (EIGHT) MPH. THIS CAUSED THE TRANSMISSION TO DOWNSHIFT UNPREDICTABLY, OVER-REVVING THE ENGINE SPEED. IT HAPPENED REPEATEDLY SO I DOCUMENTED THE ODOMETER ERRATIC MOVEMENT ON MY CELL PHONE AS A VIDEO, SHOWING ROAD MOVEMENT + ALL GAUGES + AUDIO EVENTS LIKE ENGINE OVER-REVVING AT SAME TIME. THE VIDEO IS OF HIGH QUALITY AND THE EVENTS TAKING PLACE ARE DOCUMENTED WITH THE VIDEO. RURAL AREA WITH FEW CARS ON ROAD AT THE TIME. IF IT TOOK PLACE IN A CITY INTERSTATE ENVIRONMENT (ESPECIALLY IN THE WINTER MONTHS) IT MIGHT HAVE CAUSED A MULTIPLE CAR COLLISION WITH SUDDEN UNEXPECTED DOWNSHIFTING THAT WAS OUT OF MY CONTROL. ENGINE RPM ALSO HUNTS ERRATICALLY AND OUT OF MY CONTROL. PREDICTABLE IN WHAT IT DOES, IT BEGINS APPROXIMATELY WITHIN A RANGE OF 4-8 MILES AFTER LEAVING HOME DAILY. WHEN ENGINE TURNED OFF AND PARKED AT A LOCAL S...

TL* THE CONTACT OWNS A 2003 CHEVROLET EXPRESS 1500 VAN. THE CONTACT STATED THAT WHEN FUELING THE VEHICLE, FUEL SPRAYED FROM THE FILLER NECK. THE DEALER DIAGNOSED THAT FUEL FILLER PIPE NEEDED TO BE REPLACED. THE VEHICLE HAD NOT BEEN REPAIRED. THE MANUFACTURER HAD NOT BEEN NOTIFIED. THE APPROXIMATE FAILURE MILEAGE WAS 107,000.