NHTSA Complaint #11044656 — 2002 CHEVROLET IMPALA

FUEL SHUTDOWNS WHILE ON THE INTERSTATE AT BETWEEN 60-75 MPH. WHEN THE PROBLEM OCCURS WHILE DRIVING, I IMMEDIATELY LOOSE POWER, IT GOES INTO A ROUGH IDLE, AND I HAVE TO IMMEDIATELY PULL OVER TO THE SIDE OF THE INTERSTATE. IT WILL EITHER IDLE ROUGHLY WITH NO ABILITY TO INCREASE THROTTLE FOR 5-15 MINUTES, OR, IT WILL STALL AND I CAN START IT AGAIN IN 5-15 MINUTES (WHEN WHATEVER IS NOT WORKING, COOLS DOWN). THIS HAS BEEN OCCURRING SINCE 2014. OUR SERVICE CENTER HAS A LONG HISTORY. NO PROPER ERROR MESSAGE IS GIVEN THROUGH THE REGISTER STORAGE WHEN TESTED USING GM SHOP ANALYZERS. CHECKED GAS CAP, REPLACED FUEL PUMP, CAM SHAFT POSITION SENSOR, SPARK PLUGS & WIRES, CRANK SHAFT POSITION SENSOR, FUEL INJECTOR, BCM. HAVE NOT REPLACED COIL PACKS AND ICM YET. (A DYNOMETER IS PROBABLY NEEDED TO SIMULATE LOAD FOR A MOVING VEHICLE. MANY SHOPS DON'T HAVE IT BECAUSE OF COST.)